Jef Poskanzer (jef@acme.com) invented the PBM format in the 1980s to provide the computer graphics world with a common, trouble-free format, a lingua-franca, for bitmaps. The format was designed to be simple enough that it could transmitted within an email message without any special encapsulating and survive any translations and recoding that an email message might go through and be easily extractable on the other end. In 1988, Jef distributed the forerunner of Netpbm, Pbmplus, which gathered together the various tools he had developed to work with PBM files. These were mainly tools to convert between PBM and other existing graphics formats, making it possible to deal with the Tower Of Babel situation that had arisen with the proliferation of graphics formats. By the end of 1988, Jef had added the PGM and PPM formats and lots more tools to Pbmplus. In 1991, Jef added a variety of programs and code contributed by the user community, and then stopped maintaining Pbmplus. Jef never formally renounced support for it, but simply didn't get around to distributing any updates for over a year following his final December 10, 1991 release. In 1993, Netpbm was developed to replace Pbmplus. Netpbm was nothing more than a new release of Pbmplus, and named for the fact that people all over the world would maintain the package by submitting fixes and enhancements over the Net. This was a time when such worldwide collaboration was still novel. Then Netpbm apparently fell into neglect with the last release by its regular maintainer in March 1994. In September of 1995 Anthony Thyssen released an unofficial update of it called Netpbm-1mar1994.p1, while disclaiming any responsibity for ongoing upkeep. The documentation in that 1995 release mentioned two different official mailing lists concerning the package, but by April 1999, neither existed anymore. In September 1999, Bryan Henderson needed some minor bugs fixed, and wanted to clean up the mess of unsupported versions and outdated documentation of these tools. After checking around to see if anyone had any claims of ownership of the package, and finding none, Bryan assumed control and responsibility for Netpbm. In November 1999, Thorbjoern Ravn Anderson did the same thing, for the same reason (apparently unaware of Bryan's work) and made available an updated version (based on the 1994 release) as described by http://sunsite.auc.dk/netpbm. Shortly thereafter, he discontinued his effort in deference to the new Pbmplus effort mentioned below. Bryan did not know about Anderson's work until March 2000. In parallel, and unknown to Bryan, Jef was working on a new release under the original name Pbmplus and claiming again (or maybe still) to be maintaining Pbmplus. He did a limited release of a beta version of it in November 1999. A mailing list pbmplus@acme.com was active. Bryan learned of this effort's existence in March 2000. No widespread distribution ever resulted from this. Pbmplus and Netpbm were once part of the body of X/Windows contributed software, distributed on ftp.x.org (directory contrib/utilities). Bryan didn't receive a response to an inquiry to the ftp.x.org owner as to the prospect of cleaning up the Netpbm related files there. So Bryan instead made Metalab the new home of the source code. But Metalab had pretty low quality too, and in April 2000 Bryan moved the package's home to Sourceforge. In June 2002, Bryan reorganized the package. Before, it was organized to reflect the evolution of the package: first PBM only, then PGM was added, then PPM, and then the multi-format PNM programs. There were four separate subroutine libraries and each of the PBM, PGM, PPM, and PNM components was independent of the components invented later. Documentation was in the form of traditional man pages. In Release 10, the package was integrated into a single monolithic package. There was one subroutine library and the source tree was divided according to program function rather than what generation of Netpbm it related to. All documentation was converted to HTML. CHANGE HISTORY -------------- 04.04.07 BJH Release 10.18.12 Don't try to install pm_gamma (which does not exist in this level). pamflip: fix bug with random memory accesses due to signed/unsigned comparison. 04.03.27 BJH Release 10.18.11 pnmtopng: fix bug with -transparent. 04.03.19 BJH Release 10.18.10 Include pm_system.h, pm_gamma.h in install package. Fix the ftell/ftello distinction for many platforms. ppmtogif: Don't violate array bounds when GIF color map is is larger than internal color map. yuvsplittoppm: Fix -ccir601 option. Thanks Ichiro Matsuda . ppmtomap: Change #/bin/sh to #!/bin/sh. 04.03.06 BJH Release 10.18.9 ppmtobmp: Fix bug: Generates invalid bits per pixel (e.g. 3) when input image has small number of colors. Thanks David Jones . pbmtog3: fix buffer overrun when image > 1728 columns. Thanks Prophet of the Way . pnmtotiffcmyk: Correct abs to fabs so -theta works. sldtoppm: Correct abs to fabs. pgmramp: Correct abs to fabs so -rectangle and -ellipse work. pgmramp: Don't crash with -rectangle and height or width = 1. pnmtojpeg: interpret "length" field in exif data as unsigned 16 bit instead of signed. ppmforge: Correct abs to fabs so the planet is more than 2 pixels wide. 04.02.08 BJH Release 10.18.8 pnmrotate: fix bug: always crashes in memory free. pnmrotate: remove debugging messages. 04.01.31 BJH Release 10.18.7 ppmshadow: Fix crash in all invocations. pnmquant: Fix bug wherein all options are rejected. 04.01.14 BJH Release 10.18.6 Add default RPATHOPT = rpath setting to Makefile.config.in. Add stdlib.h and pm_config.h to mallocvar.h. lib/Makefile: $(LIBNETPBMSUFFIX) instead of .so. fitstopnm: Don't produce maxval 0. 04.01.03 BJH Release 10.18.5 pnmtopng: fix bug with array bounds violation with -alpha. Usual symptom: "internal inconsistency" message. 03.12.13 BJH Release 10.18.4 anytopnm: Remove "function" so it works on FreeBSD. 03.11.15 BJH Release 10.18.3 Fix stack corruption in pXm_check() on systems that have both 32 and 64 bit file offsets. 03.11.05 BJH Release 10.18.2 installnetpbm: don't crash on mkdir on old Perl. bmptopnm: fix bug with BMPs that end prematurely. 03.10.25 BJH Release 10.18.1 configure: Add intelligence to default location for zlib, libpng headers. xwdtopnm: change interpretation of bitmap_pad and bitmap_unit to accomodate Xfree86 direct color 24 bit xwd. rgb.txt: move D65 to the end, so "white" is preferred. pbmtextps: fix bug where intermediate file gets truncated. Thanks Robert Schiele . pstopnm: fix bug in which Standard Input never works. ppmtobmp: change 'char' to 'unsigned char' to work around a Solaris C library bug. ppmtobmp: handle maxval properly for maxval != 256 truecolor BMP. Thanks Michael Buchholz . 03.09.19 BJH Release 10.18 Add escp2topbm, pbmtoescp2. Thanks Ulrich Walcher Add pbmtomatrixorbital. Add ddbugtopbm by Russell Marks. bmptopnm: Handle transparency, arbitrary pixel format (rgba masks in BMP header). bmptopnm: Handle top-down BMP. bmptopnm: Handle 32 bit BMP. Thanks Aaron Orenstein . ppmtopcx: add -8bit option. Thanks Holger Schemel . ilbmtoppm: recognize (and ignore) DPPS and TINY chunks. pbmpage: Add solid perimeter box to Pattern 1. anytopnm: use 'file --mime' where available to determine file type more robustly. manweb: make 'webdir' a list of directories instead of just one. pnmpsnr: fix bug: Cr and Cb interchanged. Thanks "Uwe Utecht" . pnmstitch: fix crash. Thanks "Paul" . manweb: add ability to read info files. configure: missing lineends for Solaris. anytopnm, ppmquantall: remove non-POSIX tail -N and egrep. pgmtexture: Fix Measure of Correlation-2 so small values don't turn into zero (replace abs() with fabs()). Add and use MALLOCVAR and MALLOCARRAY utility macros. Allocate rows individually if can't get all rows in a single memory block. Remove hpcdtoppm from the main package because it isn't licensed properly to be distributed on Sourceforge. Remove "magic" file -- the version that comes with Christos Zoulas' 'file' package now contains everything that file had. configure: put space after -o in test compiles. Explicitly set SCRIPTS make variable to null so environment variable of the same name doesn't screw things up. Remove -DALL_SOURCE from AIX compile; define it in files that require it. Add -ffast-math option to recommended Gcc options. stamp_date: don't use LOGNAME as a variable (on AIX, you can't). 03.07.05 BJH Release 10.17 Various code cleanups based on TRU64 compiler warnings. Configure: print message when $OSNAME not recognized. Fix Makefile.common so LIBS and LOADLIBES work. Fix make file for Ppmglobe so it links the math library. Fix bug in xxx_check(): function/prototype mismatch causes bogus wrong-filesize error on systems where off_t is sometimes not 64 bits. 03.07.03 BJH Release 10.16 Add ppmglobe. Thanks Max Gensthaler . bmptopnm: Add ability to convert 16 bits per pixel Windows BMP. giftopnm: add -image=all. pnmtiff: Add -resolutionunit option. pnmtopng: fix bugs, remove limitations with -text. pgmabel: Declare internal subroutines 'static'. pstopnm: fix bug: encapsulated postscript confused with regular postscript, so all pages get overlaid as one page. pnmrotate: Use smaller real memory working set. winicontoppm: use standard option parser. pnmflip: fix bug causing -r180 and -r270 to be ignored. Thanks YANO Hirokuni . configure: fix bug with missing space when using CFLAGS environment variable. Add CPPFLAGS and LOADLIBES to rules and 'configure' test compiles. Issue error message if you do 'make package' before 'make'. Add VERSION file to package. Use explicit library file name on a link instead of -L/-l where possible. 03.04.27 BJH Release 10.15 Add pamtohtmltbl. Thanks Alexander B. Ivanov . Add pampop9. Thanks Robert Tinsley, . winicontoppm: Handle 24 bit direct color winicons. Thanks Lee Benfield . pnmrotate: add -background option. pnmtojpeg: Add -density option. libnetpbm: Add ppm_readcolornamefile(). Make library and programs work with files > 2GB. At least on GNU and AIX. pbmtext: Add -momargin option. Thanks "Slaven Rezic" . pbmtoepsi: fix bug: non six-digit lines between %%BeginPreview: ... and %%EndImage . Thanks "K.Nakano" . pnmrotate: fix bug: background color computed wrong. pnmrotate: fix bug: PBMs without -noantialias not properly promoted to PGM. pnmtops: fix bug: 1 bit per sample output when maxval is 2 or 3. Should be 4 bits per sample. pnmtops: fix bug: everything too dark when input maxval less than Postscript maxval. pm_nextimage(): fix bug: doesn't read past white space at the end of a plain-format raster. pnmremap: fix performance bug: don't put same color into hash twice. Thanks Hannu Koivisto . ppmtoxpm: Add -hexonly. Default to system color dictionary. Use standard library routines to access color dictionary. pnmcolormap: Keep only one row at a time in memory. bmptopnm: fix buffer overrun with wild ColorsUsed value. Change ordering of include files in parallel.c so it compiles on AIX 5. configure: change -O2 to -O0 for broken gcc compiler. One more chop at the -R/-rpath issue: new defaults for Solaris. 03.02.13 BJH Release 10.14 Add pamedge, adapted from pnmedge by Peter Kirchgessner, 1995. Add ppmwheel, adapted from ppmcirc by Peter Kirchgessner, 1995. Add ppmtoarbtxt, renamed from ppmtotxt by Peter Kirchgessner, 1995. pnmflip: add pnmflip directory to search path for pamflip. picttoppm: Recognize DirectBitsRgn opcode. Thanks . ppmbrighten: -normalize works with nonseekable input. jpegtopnm: Update exif stuff to match Jhead 1.9. bmptopnm: fix for the case of ColorsUsed != 0 in non-colormapped (24 bit) image. pbmtopgm: limit the maxval to legal values. pamarith: minimum output maxval of 2 for -compare. rgb.txt: remove redundant lines, clean up. pnmgamma: fix bug in -ungamma -cieramp. 1/gamma vs gamma. pnmtopng: fix bug: background color = transparent color in colormapped image causes transparent color not to be transparent. Also make bilevel images with background color use 1 bit per pixel instead of 2. pngtopnm: Fix bug: wrong exit code. Fix broken ISUPPER; affects sbigtopgm and color name functions pamflip: Use bundled strsepN() instead of strsep(). giftopnm: fix bug with GIFs that (invalidly) contain translation cycles. Clean up LZW decompression so it is readable and more robust. Add strsepN() to libnetpbm, because strsep() is not available everywhere. Change --rpath to -rpath. Change LINKERISGCC to LINKERISCOMPILER and default to Y. configure: Handle explicit "none" response to svgalib prompt. Add merge.o (vs mergelist) method of doing merge build. Fix bug: jbig converters missing from merge build. 03.01.09 BJH Release 10.13 Add pamlookup. Add pamflip: replacement of pnmflip. Does PAM images and has -xform option. Add pm_system(). Ppmrainbow: Add -norepeat option. tifftopnm: handle 32 bits per sample -- Use upper 16 bits. tifftopnm: add -byrow. pamarith: Add -compare operator. ppmtompeg: Check for missing YUV_SIZE option with -combine_frames and -combine_gops. ppmtompeg: fix buffer overrun with invalid message received by slave processor. pamseq: Fix crash/memory corruption. pamseq: Remove debugging statement. Add some protection against Netpbm images that indicate dimensions too big to process without arithmetic overflow. Replace isdigit() with ISDIGIT(), etc. pnmnorm: malloc histogram array instead of using stack variable to avoid stack overflow. thinkjettopbm: works with Solaris Lex. Add PKGDIR_DEFAULT Makefile.config variable. Configure: Test for old JPEG library without jpeg_marker_struct. Configure: Add -I/usr/local/include and -I/usr/local/lib to OpenBSD and NetBSD compiles and links. Change make variable from INCLUDE to INCLUDES to avoid collision with Cygwin environment variable. 02.11.09 BJH Release 10.12 Add pamtojp2k, jp2ktopam. pnmtotiff: add test for seekable output. pnmflip: use packed PBM format to save memory. Thanks Ivan Karski . thinkjettopbm: replace getopt with shhopt to avoid header file problem (getopt.h) on some systems. fix multiple definition problem with pm_plain_output. pgmminkowski, pgmmorphconv: fix bug: programs missing. These were formally added in 10.0, but the code never actually went in. pbmtomda: fix crash with input image not multiple of 4 rows. tgatoppm: fix segfault in option processing from recent option processor change. Slight correction to coefficients in pnm_YCbCrtuple. Add pnm_YCbCr_to_rgbtuple() to libnetpbm. ppmtompeg: fix build failure with NETWORKLD=NONE. ppmtompeg: fix build error due to broken C library header files on SunOS. Fix missing alias symlinks in merge build. 02.10.17 BJH Release 10.11 Fix nstring.h, ppmcmap.h dependency in analyzer/. pnmtojpeg: Add -rgb option. jpegtopnm: Handle a stream of consecutive JPEGs. tifftopnm: use TIFFRGBAImageGet() so it works on compressed images. 'make distclean' deletes all symbolic links, even if I forget to put them in HEADERLINKS so that 'make clean' gets them. 02.10.10 BJH Release 10.10 Add -plain common option. Thanks "John H. DuBois III" . ppmhist: Add -colorname option pnmcomp: Add -align=beyondleft, -align=beyondright, -valign=above, -valign=below and make -xoff and -yoff work in conjunction with -align and -valign. Idea from "John H. DuBois III" . manweb: Add ability to search through PATH for documentation so you can just say 'manweb bmptopnm'. bmptopnm: fix bug from 10.9: 24 bit truecolor should be BGR, not RGB. ppmtobmp: fix bug from 10.9: 24 bit truecolor should be BGR, not RGB. pamarith: Fix bug with mixed depth inputs. pamarith: Fix bug with -subtract of larger # from smaller. pnmstitch: fix bug causing segfault at end. pgmtopgm, ppmtoppm: Issue error message if arguments given. giftopnm: remove debugging messages. Fix line number in color dictionary error messages. Fix build errors on systems that don't do "echo -n" by using cat /dev/null instead. Fix build errors that cause the data files not to get installed. Merge build: fix install of other/ programs and add NETWORKLD to the link. Merge build: add missing backward compatibility 'pnmfile' link. Add SCO OpenServer to configure dialog. Thanks John H. DuBois III Add FreeBSD to the configure dialog. 02.09.21 BJH Release 10.9 Add pgmtopgm. Add ppmtoppm. Add ppmtoterm. Thanks Ero Carrera . Add ppmrough. Thanks Eckard Specht . Add rgb.txt pnmquant: make it work with pipe input; fix crash due to half-finished work accidentally released a few releases ago. bmptopnm: Use way less memory by inverting image while still in the BMP raster format (as little as 1 bit per pixel), instead of in the libnetpbm format (96 bits per pixel). ppmhist: Reads image into memory one row at a time instead of entire image in memory at once. ppmshadow: make it work with non-PPM input. ppmshadow: Don't run a shell for every Netpbm program. xwdtopnm, pnmtoxwd: make them work on 64-bit-long machines. ppmdither: Fix subscript out of bounds bug which caused random intensity values for the most intense pixels (and very slightly too-intense values everywhere). ppmtobmp: Fix bug in 24 bit truecolor: was writing B, G, R but standard appears to be R, G, B (per bmptopnm and xli). pamarith: restore pnmarith capability of having one of the inputs be depth 1 while the other is not. pnmtopclxl: fine tuning of PBM input case. remove pnmfile; obsoleted by pamfile. ppmfade, ppmshadow: Change #!/bin/perl to #!/usr/bin/perl. Add a bunch of missing #include and fix scanf type mismatches, per gcc 3.2 compiler warnings. Add some missing -R options to links. 02.08.16 BJH Release 10.8 Build: Fix Configure bug with JPEG headers in default path. Pnmtopclxl: fix bug with PBM input not multiple of 8 across. 02.08.15 BJH Release 10.7 Pnmtopclxl: remove padBytesMultiple attribute, which doesn't exist on old printers. Pnmtopclxl: fix MediaDestination parameter value. Pnmtopclxl: make options parsed by standard Netpbm option parser; remove unconventional (and broken) --output option. Fix crash with Standard Input input. Check whole length given for option values. pnmflip: Add -memsize and -pagesize. Make other options conventional - only one transformation allowed. Make 'configure' a Bourne Shell program that calls configure.pl. Add pnmstitch. Thanks Mark Salyzyn . Fix -R stuff to fix Solaris build. Add lots of consts, remove dead code, with the help of GNU compiler warnings. 02.07.29 BJH Release 10.6 Add pnmtopclxl. Thanks Jochen Karrer . Add pnmstitch code; not working yet. pnmmontage: add -data option. Thanks Ben . pnmtotga: put "image ID" in TGA output. ppmtotga: Correct name to pnmtotga. pnmcomp: Add -opacity option. pbmtog3: Add -nofixedwidth option. Vladimir Nadvornik ppmtopgm: upgrade to handle multi-image PPM file. icontopbm: fix bugs with invalid input formats. Thanks Vladimir Nadvornik ppmtompeg: fix crash with logarithmic psearch algorithm and non-power-of-2 search range. configure: fix use of compiler other than cc. Thanks Ben . Fix Cygwin library build for default DLLVER. Fix file handle problem with Configure on old Perl. Don't use .defs file/run dlltool (Windows). 02.07.14 BJH Release 10.5 Make library link on Solaris with GNU Ld work. Thanks Russel Winder . Make Configure not depend on File::Temp. 02.07.09 BJH Release 10.4 Fix space after -I bug in Makefile.common, lib/Makefile. Change a bunch of macros to upper case; avoid name collision of round() with math library. Configure detects broken gcc, sets -O2. Configure detects jpeg headers not in default search path. 02.07.02 BJH Release 10.3 Add pamfunc. Add pgmabel. Thanks Volker Schmidt . pamslice: add -xmgr option. pgmslice: upgrade to pamslice. pamarith: add -mean option. pnmarith: upgrade to pamarith. pnmtopng: add -palette option. Functional copy from "Pnmtopng" package. pbmtoepsi: Add -dpi option. Thanks Bill Cheng tifftopnm: make -respectfillorder work. pnmtopng: fix bugs in handling of text comment files. Taken from "Pnmtopng" package. pnmtopng: fix -hist option. Cygwin build accomodations. Thanks Charles Wilson . Fix ppmtompeg build failure when JPEGLIB = NONE Fix missing -R link options. 02.06.14 BJH Release 10.2 Works with separate build directory. pnmnorm: fix precision error causes whites to become black Fix bug: Pbmpage needs math library 02.06.07 BJH Release 10.1 ppmmake: add -maxval option pgmramp: add -maxval option Add pamseq. ppmcolors: base on pamseq. pnmtotiff: Fix bug in -indexbits. Fix runtime library paths for Darwin, Netbsd installnetpbm: Fix infinite loop when you refuse manweb.conf. installnetpbm: Add mode to mkdir for older Perl. installnetpbm: Use BSD option on Cp if not GNU. 02.06.01 BJH Release 10.0 Man pages replaced by web pages -- either private copies or straight from Netpbm Central. Documentation distributed via Worldwide Web, not in the Netpbm source code tarball. Reorganize source tree. Combine 4 Netpbm libraries into 1. Make merge build merge ALL programs into one. Add pamendian. Add pamstack. Add pamtohdiff, hdifftopam. Add pbmtextps. Thanks James McCann . Add pgmminkowski, pgmmorphconv. Thanks Luuk van Dijk pnmtotiff: Add -indexbits option to allow fewer than 8 bits per sample in apletted image. Thanks Thomas Henlich . pnmtotiff: put zeroes in unused colormap entries. Thanks Thomas Henlich . pbmtext: Add -lspace option. Thanks Denis . ppmqvga: remove; appears to be obsoleted by Pnmquant. pnmtops: remove setpagedevice by default. Add -setpage option. ppmtouil: rename to pamtouil, add transparency. pamchannel: Add -tupletype option. pstopnm: Add a showpage in case the EPS source doesn't have it. Thanks "J. Milgram" . pstopnm: Run Ghostscript directly instead of via a shell. Some Windows environments don't have a Bourne-compatible shell. pnmtotiff: Don't put bogus colormap in grayscale TIFF. Thanks Thomas Henlich . picttoppm, ppmtompeg, rletoppm: fix bug with invalid parameter ("b" modes) on popen(). pnmtopng: fix bug with 'mayscale'. pnmnorm: Fix bug with bvalue == 0. Thanks "Blake, Chris" pnmtopng: restructure palette generation to make it easier to read. configure: Add --help. Add Windows DLL versioning. Thanks Charles Wilson . Add Nstring library, so Netpbm programs can use asprintf(), etc. 02.03.15 BJH Release 9.25 Add pamdice. pnmgamma: add -srgbramp. ppmnorm, pgmnorm: replace with pnmnorm ppmnorm: Read only a row at a time into memory. ppmnorm: Add -keephues option. Pnmtotiff: Add -miniswhite option. Pnmtopsnr: Read only a row at a time into memory. Convert bmptoppm to bmptopnm. ppmtopcx: Add -xpos, -ypos options. pcxtoppm: Don't require seekable input. pcxtoppm: Improve messages; add some PCX header validation. ppmtowinicon: Use standard alpha mask (PGM image) instead of PPM image (black/not black) for and file. pnmpad: Add -width, -height, -halign, -valign options. Thanks M. van Beilen . ppmhist: remove 100,000 color limit. pnmnlfilt: works with multi-image streams. Thanks "Steven M. Schultz" . pcxtoppm: Fix bug with negative image position. pnmtopsnr: fix unsigned integer bug giving wrong results on PGMs. libpnm: fix bug: PAM functions write 16 bit samples wrong. Tifftopnm: fix bug: transparency mask all wrong. Thanks Heikki Suonsivu . Makefile improvements for cross compiling. Thanks "Maciej W. Rozycki" . Allow build with existing JBIG library instead of the bundled one. Thanks "Maciej W. Rozycki" . ppmtompeg Makefile: include -R option where needed. Thanks Hans Werner Strube . Add BSD/OS to configure program. Thanks seebs@plethora.net (Peter Seebach) install uses supplied install.sh instead of an 'install program it finds on your system. configure: Fix missing newline bug for IRIX. 02.01.27 BJH Release 9.24 Add ppmsvgalib. pnmremap: Use full color resolution of input instead of that of color map to do Floyd-Steinberg dithering. pnmremap: fix bug where Floyd-Steinberg dithering of very dark areas creates spots of maximal brightness. ppmquant: fix same bug as pnmremap. pnmscale: add -nomix option rawtopgm: fix bug. Thanks Joe Krahn . pnmquant: replace with a Perl program that calls pnmcolormap and pnmremap. Fix bug: PAM library routines fail to read 2-byte samples. fix bug: install-dev doesn't install mappam.h. configure sets up install paths. make install does Ldconfig where required. pnmtops: Add "XxY" form of -dpi option. Thanks Vladimir Nadvornik ppmtomap: rewrite to call the new pnmcolormap. pnmscale: clean up code a little; now it appears to produce somewhat better results -- don't know why. exif.h: remove C++ comments various fixes to please Irix compiler. Change some "long" to "uint32n" so it works on 64 bit machines. 02.01.04 BJH Release 9.23 tifftopnm: fix bug from 9.22: always crashes. xpmtoppm: fix bug from 9.21: XPM 3 files not recognized because /* XPM */ comment read twice. xwdtopnm: Use bitmap_pad instead of bitmap_unit on X11 pixmap files with depth > 1. Thanks "Ben Kelley" . pnmtopalm: fix bug: crashes with -colormap and non-color input. ppmforge: fix bug: array subscripts out of bounds. Thanks Rob Menke . giftopnm: fix bug with extraneous "bogus character 0x00" message tifftopnm: add -respectfillorder option. Ignore FILLORDER by default. make install-dev: install shared library stub files (symlinks). ppmtogif: Fix bug: color resolution in wrong bits in logical screen descriptor. Thanks Elmue . Add -lz to Tiff programs; libtiff requires it now. Add ppmcolors. Add pnmremap. Add pnmcolormap. pnmtops: Include setpagedevice directive in Postscript output. Thanks A Braunsdorf . pnmtops: turn-to-fit logic works properly where paper is wider than tall. Thanks A Braunsdorf . giftopnm: cleanup 01.12.10 BJH Release 9.22 Fix bug: pnm_luminosity_factor must be "extern" in pam.h pbmtonokia: can create picture messages. -txt, -net options. tifftopnm: Accept invalid FILLORDER value - assume msb-to-lsb. 01.12.01 BJH Release 9.21 Add pamdeinterlace. Add pnmquant. pnmtops: Accept maxval > 255 input. Rename pnminterp to the more informative pnmstretch. pnmstretch: convert from pnm to pam - pamstretch. pamstretch: add -xscale, -yscale options pbmtolj: Add -copies option ppmtogif: Add secret -h option to make Latex2html configure program work. ppmquant: output maxval controlled by colormap maxval, not input maxval. pbmclean: Add -black and -white options. Thanks Michael Sternberg . xpmtoppm: Don't require input to start with a comment. Thanks MINAMI . xpmtoppm: Fix bug introduced with 9.20 with XPM 1 files. pnmcut, pamcut: fix bug with cut that begins past right edge of image. pamcut: Same fix as in pnmcut in 9.9. Also fix black fill. pnmtotiff: Process one row at a time instead of reading entire image into memory. Add -color, -truecolor. 01.10.05 BJH Release 9.20 ppmtogif: Add -nolzw option. ppmntsc: do multiple images pnmtojpeg: fix bug from 9.19 causing crash on most images. ilbmtoppm: Correct cmyk -> rgb transformation. ppmtompeg: Fix bug due to missing "breaks". Thanks Wolfgang Mueller eyuvtoppm: fix memory leak, speed up by allocating working storage only once. libopt.c: replace strtok_r() with strtok() so it compiles on Mac OS X. 01.09.18 BJH Release 9.19 pnmtotiff: fix bug from 9.17 causing compile to fail with old Tiff library pnmtojpeg: Add -exif option. ppmtojpeg: Change to pnmtojpeg; PBM/PGM input causes grayscale output. pnmtotiff: Handle LSB2MSB FILLORDER. pnmtotiff: Fix -msb2lsb, -lsb2msb. Used to do nothing but set FILLORDER tag value. Make maxval of a PBM image read as a PGM image 255 instead of 1. libpbm: eliminate external data symbol pm_show_version so it works with Windows. Use subplatform-specific prefixes on Windows shared libraries. Thanks Charles Wilson . 01.09.04 BJH Release 9.18 Fix bug from 9.17: -lm now needed in jpegtopnm link. jpegtopnm: Add -dumpexif and -exif options. pnmtotiff: Fix bug: 16 bit samples byte-swapped on little- endian machines. Remove C++ comments from exif.c 01.09.03 BJH Release 9.17 Add ppmtoneo, neotoppm. Thanks Teemu Hukkanen . pnmtotiff: Add -flate, -adobeflate. Thanks Peter Creath. pnmindex: Fix bug with -size option. Thanks André Majorel pnmflip: Fix memory leak, plus make special case for PBM images that uses 12 times less memory. Thanks Stefan Roellin . tifftopnm: Fix incorrect interpretation of FILLORDER tag causing incorrect output with 16 bit samples and FILLORDER not msb2lsb. Thanks Don Reid . tifftopnm: Fix PHOTOMETRIC_MIN_IS_WHITE case. Thanks Don Reid . giftopnm: Fix bug with malformed GIFs that end prematurely. pbmtonokia: Convert C++ style comments to C style so Sun C compiler can handle them. Thanks Jon Parise . Install development package (header files, static libraries) by default. Add ability to build both static and shared libraries. Add merge/nonmerge to Makefile.config/configure, in place of special make targets. Fix Mac OSX build for gcc 3.0. Thanks m-sekino@mb.kcom.ne.jp (Masanori Sekino) Fix make install.hdr. Thanks m-sekino@mb.kcom.ne.jp (Masanori Sekino) 01.07.24 BJH Release 9.16 Builds on Darwin/Mac OS. Thanks m-sekino@mb.kcom.ne.jp (Masanori Sekino) Add pbmtopsg3. (Postscript G3 fax) Thanks Kristof Koehler Add pbmtonokia. Thanks Tim.Ruehsen@OpenMediaSystem.de. Add ppmrainbow. Thanks Arjen Bax . Add pamoil, as replacement for pgmoil. Based on ppmoil by Chris . ppmtogif: Add -alpha option. ppmtojpeg: fix bug: option takes as input filename. xpmtoppm: fix bug: Bogus EOF failure. Thanks "Dr. Larry Pyeatt" . pnmtopng/pngtopnm: update to Release 2.37.5 of the pnmtopng package. Make -transparent option work like ppmtogif -- you can add an "=" before the color to specify "exact". fix bug with background color and maxval = 65535. Fix a raft of bugs in pnmtopng from Netpbm 9.15. Remove Tiff library from the package. Proper naming of AIX and HP-UX shared libraries. giftopnm: Add color index to transparency message. Add some -R link options in make files. ppm3d: fix bug: ignores offset argument. tifftopnm: fix bug: shifted right one pixel. pnmshear: remove sscanf so it works better with Cygwin, convert to shhopt, clean up. pgmcrater: Remove black vertical line at right edge. Make craters wrap around the image (enables tiling of image). Thanks Arjen Bax. pgmtopbm: remove sscanf so it works better with Cygwin. Thanks Arjen Bax. Treat all white space, including DOS carriage returns, in color name db file as white space; Thanks Arjen Bax. 01.06.24 BJH Release 9.15 Change format specs to state that sample values are nonlinear instead of linear. pnmtopalm/palmtopnm: Handle PalmOS 4.0 16 bit direct color format. Thanks Bill Janssen . pnmgamma: Add CIE Rec 709 gamma correction option. pnmgamma: Add -ungamma option ppmcie: Add -rec709 color system option as default so that it produces true PPM output (per the new spec) and carefully document what the program generates. ppmcie (work done by Andrew Hamilton in May 1999 but not distributed): 1. Corrected the XYZ -> RGB transformation; 2. Eliminated the -interpwp option, a fudge which had been necessitated by the incorrect XYZ -> RGB transformation; 3. Added a Gamma correction, missing in the original; 4. Added the option to plot u' v' chromaticity instead of x y; 5. Added options to suppress labels and/or axes. pnmscale, pnmscalefixed: Fix bug with unwanted -verbose behavior. pnmscale, pnmscalefixed: Add -reduce option. Thanks Christopher W. Boyd ppmtoeyuv: Speed up by not freeing/reallocating storage for each image. Thanks "Steven M. Schultz" ppmtoeyuv: Fix memory leak. Eliminate pgm_pbmmaxval, ppm_pbmmaxval, and pnm_pbmmaxval from libpgm, libppm, and libpnm. 'maxval' argument to pgm_readpgmrow() and ppm_readppmrow() already accomplishes this. pnm_readpnmrow() changed to do same. external data symbols like this do not work with Mingw. various changes to accomodate Mingw (native Windows) and DLLs with Cygwin (Windows). eyuvtoppm: rewrite. Uses Netpbm libraries now. pstopnm: Remove gratuitous 5% margin. Add -equalpixels, -imageheight, and -imagewidth options. pnmtopng: Read only one row at a time, not the whole image, into memory. Do multiple passes through the (hopefully fully cached) file. This saves memory because pnmtopng's internal format may use 96 times as much space per pixel as the file. libpbm: Add pm_openr_seekable(), pm_seek(), pm_tell(). libppm: Add ppm_computecolorhash2(), ppm_computecolorhist2(). configure: fix bug with Solaris/Sun compiler. Split pbmplus.h into pm_config.h and pbm/pm.h to prepare for automatic generation of pm_config.h. Move pm_*() subroutines from libpbm1.c to new libpm.c for clarity. Remove malloc.h from 411toppm. malloc is included by pm_config.h, in platform-dependent way. 01.05.13 BJH Release 9.14 fix bug in shhopt causing wild branches. winicontoppm: Make alpha mask ("and") output PBM instead of PPM; correct sense so white is opaque, black transparent. ppmtoxpm: Add --alphamask option. Remove 256 color limit. xpmtoppm: Add --alphaout option ppmtogif: Add "=" to -transparent option to specify exact color. configure: change /bin/perl to /usr/bin/perl. Red Hat Linux doesn't have /bin/perl. pnm/Makefile: correct bugs in link. Thanks J Scott Berg Make it build on Unixware. Make it build on OpenBSD. document color indexing and histogram functions. 01.04.22 BJH Release 9.13 ppmtogif: fix divide by zero move much of README file into a new master man page, netpbm.1. pnmcomp: add -align and -valign options. Add thinkjettopbm. Thanks Eric Norum . Builds with Sun compiler. 01.03.25 BJH Release 9.12 Add 411toppm. Thanks Steve Allen . pnmcrop: add -sides option (does what was default behavior until July 2000) ppmtoeyuv: Use netpbm libraries, deal with multi-image input. Add color row color map and Floyd-Steinberg functions from ilbm package to libppm. ilbmtoppm, ppmtoilbm: replace with Ingo Wilken's version from April 13, 1995. jpegtopnm: fix crash with B&W JPEG input. pnmcomp: fix bug: invalid output image when overlay image is "higher" format than underlying image. ppmchange: fix bug: wouldn't work with maxval != 255. pnmtojbig: fix bug: it always says invalid maxval. Thanks Bill Davidsen. pbmtext: fix bug: output is sometimes "not implemented" because of uninitialized variable. pnmpsnr: rewritten so as not to use Fiasco library. Correctly handles maxval != 255. Works with PAM. Add IRIX to the configure program. Thanks Neil Franklin . make files: add ZLIB_DIR and ZHDR_DIR variables to Makefile.config. Thanks Bill Janssen. pcdindex: convert from csh to sh. Thanks Steve McIntyre. 01.02.20 BJH Release 9.11 pnmtopalm: Handle 16 bit direct color format. pnmtotiff: Add -xresolution and -yresolution options. Thanks Tim Ruehsen. Add error message to GNUMakefile for when GNU Make is too old. pnmpsnr: fix bug: PGM files always compared equal. libpbm: improve --version to reflect that libraries are usually dynamically linked now, so it's the version of libpbm, not the program itself. pbmtext: add -space option. asciitopgm: fix crash due to memcpy that should be memset. Thanks Philipp Knirsch . pktopbm: fix numerous bugs. Copied from Red Hat. By jcn 1998.09.22. pstopnm.csh: fix bomb when xres=yres. This program is obsolete (use pstopnm.c instead), but the patch was free, so why not? Copied from Red Hat. By Nalin Dahyabhai 2000.02.14. pnmtotiff: Make photometric for G3/G4 fax MINISWHITE instead of MINISBLACK. Add -minisblack option. Thanks Eric Smith . libppm/ppm_parsecolor: fix rounding error for very small maxvals (e.g. PBM files -- maxval = 1). pnmtopalm, palmtopnm: minor updates bmptoppm: handle BMPs that use ColorsUsed instead of bits per pixel to determine color map size. bmptoppm: add -verbose option. ppmquant: fix bug with maxval > 255 causing arithmetic overflow and arbitrary colors in output. 01.01.10 BJH Release 9.10 giftopnm: add -alphaout. ppmchange: Add -remainder option. Add pnmtopalm, palmtopnm. Thanks Bill Janssen . Add pnmmontage. Thanks Ben Olmstead . ppmtogif: Add -comment option. ppmtogif: fix bug: created GIF89 when it should have created GIF87. giftopnm: fix bug in displaying of comment extensions. jpegtopnm: Add -comments option. ppmtojpeg: Add -comment option. ppmtompeg: fix crash. Thanks Roger Southwick More work on separating source and build directories. GNU Make 3.77 or better now required. 00.11.20 BJH Release 9.9 add ppmtolj: color HP Laserjet graphics (PCL). Thanks Jonathan.Melvin@heywood.co.uk. ppmfade: add -mix option. ppmhist: add -noheader option. rawtopgm: Add --bpp, --maxval, and --littleendian options. pnmindex: Add -noquant, -title options. pnmtotiff: create 16 bits-per-sample Tiff files when maxval > 255 instead of crash. tifftopnm: handle 16 bits-per-sample Tiff files. pnmscale: Use floating point arithmetic instead of 12 bit fixed point to reduce distortion at right and bottom edge of large images with weird scaling factors. Add pnmscalefixed, which is the old fixed point pnmscale, which goes faster. But also fix bug in the fixed point version so the distortion isn't as bad. Add -verbose option. pnmcut: fix bug: right edge wrong or subscript out of bounds. Thanks MURAKAMI Masahiko , Sven Over , Frederic Vivien , Pete Weisz . xpmtoppm: fix reading of 4-character color codes; handles "NONE" color (transparent background); add -v. Thanks Martin Vermeer . ppm/Makefile: fix bug: ppmtompeg, hpcdtoppm not installed. Thanks Mike Castle . ppmpspread: fix bug: invalid memory reference crash. Thanks digger , john joseph iii casey . ppmchange: fix bug: every other argument pair ignored. Thanks Sven Over . Fix error message in pXmmerge (no pm_error()). Thanks Pete Weisz , libppm: add /usr/X11R6/lib/X11/rgb.txt as default rgb.txt file. Thanks ceder@lysator.liu.se (Per Cederqvist). Replace hpcdtoppm version 0.3 (1992) with 0.6 (1994). Add pcdindex. Build fixes for Tru64. Thanks Phil Benchoff . Makefile.config: option to not strip binaries on install. 00.09.01 BJH Release 9.8 jpegtopnm: Add -adobe, -notadobe options. ppmchange: Add -closeness. giftopnm: report transparency information. jpegtopnm: Accept single-hyphen options. Make it build on DJGPP. 00.08.12 BJH Release 9.7 sgitopnm: add -channel option to access more than 3 channels. Thanks Smarasderagd. pnmcut: Add -pad option ppmtobmp: change default from -os2 to -windows. pnmcut: fix bug: height argument misinterpreted. ppmquantall: fix bug: don't crop white borders off images yuvtoppm: fix bugs: don't depend on bigendian representation of integers. reject odd-width images. ppmtoyuv: fix bug: reject odd-width images. anytopnm: fix bug: required nonstandard shell feature. giftopnm: fix bug: when image consists of two gray colors, program converted them to black or white and created PBM file. Thanks Smarasderagd. Also fix memory leak. Make changes since 9.2 build on Cygwin. 00.07.12 BJH Release 9.6 Add pnmtofiasco, fiascotopnm, psnpsnr. Thanks to Ullrich Hafner. Make Pnmcrop use a temporary file instead of huge amounts of memory. bmptoppm: fix crash when OS/2 BMP file has > 8 bits per pixel. anytopnm: fix bug (from 9.0) wherein program almost always crashed. Add gzip, bzip, bzip2 capability. Thanks Charles Howes. parallel.c: Work around SunOS libc problem. Define some newer libtiff macros so it compiles against older libtiff. 00.07.01 BJH Release 9.5 Extend formats to allow multiple images per file. Add -allimages option to pnmfile. Add pnmsplit. Extend pnmtops. Add pbmtowbmp, wbmptopbm. Thanks Terje Sannum. ppmtobmp: Add 24 bit (truecolor) capability. Remove Release 8.3 colormap size update. pnmcut: easier, more expressive syntax for specifying what to cut. pnminterp: handle maxval != 255, convert to use Netpbm libraries. Translate pstopnm from Csh to C, eliminate dependency on the 'bc' program. Fix bug in tiff library build which caused null soname. Add optParseopt2() to shhopt.a so you can use long options with one hyphen instead of two. giftopnm: fix bug with variable used before set. Fix bug (coding error -- 0=>i). Unknown impact. bmptoppm: fix bug with 24 bit (truecolor) Windows BMPs. xwdtopnm: fix one more bug with bits_per_item <> bits_per_pixel. Fix ppmtompeg build bug with static libraries. Make build clean with gcc -ansi (albeit with some files that need extensions declaring the _BSD_SOURCE etc.). 00.06.04 BJH Release 9.4 Rebase pnmtopng, pngtopnm on Pnmtopng 2.37.4. pbmtolj: fix bug where blank lines get discarded. Thanks Charles Howes. ppmtompeg: fix bug with "PNM" format files with maxval != 255. Get rid of built-in PPM file parsing. Fix 'make install' where mkinstalldirs is not found. Fix bug where rle_global.c would not compile with GNU C Library 2. 00.06.01 BJH Release 9.3 pnmfile: check for file size error. ppmhist: handle larger maxvals, image sizes xwdtopnm: Use color map with DirectColor to fix wrong color bug on some DirectColor xwds. xwdtopnm: Correct bug with 24/32 DirectColor LSBfirst xwds. Add pXmcheck() library function. Add leaftoppm and ppmtoleaf. Thanks Bill O'Donnell. Add winicontoppm and ppmtowinicon. Thanks Lee Benfield . Add pgmslice. Thanks to Jos Dingjan. Include subset of RLE library in the package. stamp-date doesn't rely on whoami. Make file fixes to accomodate more install programs. Replace tmpnam() with mkstemp(). Add pXm_init() into all programs that didn't have it. 00.05.15 BJH Release 9.2 Shared libraries now build properly for Solaris, SunOS, NetBSD. Add jbigtopnm, pnmtojbig. Thanks to Markus Kuhn. Add pnminterp, pnminterp-gen by Russell Marks. Add pbm_writepbmrow_packed() and pbm_readpbmrow_packed() to libpbm. ppmdither: fix bug with input maxval != 255. Make output maxval the LCM of the requested numbers of primary levels. xwdtopnm: works with files where there aren't an integeral number of pixels per storage unit (e.g. 24 bits per pixel) Add some missing pXm_init() Make pXmmerge source code automatically generated. 00.05.06 BJH Release 9.1 Add pbmtoppa (renamed from pbm2ppa, renamed from print-pbm). Thanks Tim Norman. Add pbmpage. Thanks Tim Norman. Add pbmtomda, mdatopbm. Thanks John Elliott. Replace gemtopbm with gemtopnm. Thanks to John Elliott. Add ppmntsc: change colors to those acceptable for ntsc or pal. Rename old ppmntsc to ppmtv. pbmtolj: Add compression (-delta, -packbits, -compress) by Dave Platt Look for both /usr/lib/X11/rgb.txt and /usr/openwin/lib/rgb.txt by default. Improved error messages if file not found. pbmtext: renders character codes 0x80-0xff and 0x00-0x1f as whatever the font says, rather than always blank. Thanks Helge Oldach. Fix bug in parsing of rgb.txt file in ppm_colorname(). Add optional static library build to make files. Fix a bunch of build bugs for Solaris, SunOS. Still not all the way there. Thanks Richard Curnow, Philippe Brieu, Benjamin Kuit. Make it build on Cygwin. Thanks Pierre Humblet. Use rm -f;ls instead of ls -sf in make files; some systems don't have ln -f. 00.04.15 BJH Release 9.0 Add the 16-bit-per-sample format for maxval > 255. Change size of samples in the library interface from 8 bits to 32 bits. Library write routines now create the new 16 bit format instead of plain format when you request a maxval > 255 and not 'forceplain'. Make all programs read the new format, and all programs that convert to PNM from a >8 bit input generate it instead of failing or normalizing. Make pnmdepth generate it. pnm_readpnminit(), etc. fails if you request a maxval > 65535 and not 'forceplain'. It used to generate plain format in that case, but you couldn't actually specify a sample value > 255. Add pnmtorle and rletopnm from the Army High Performance Computing Research Center. add ppmcolormask - creates a mask of areas of a certain color in an image. anytopnm: fix infinite loop pbmtext: Ignore non-8-bit characters in bdf files instead of crashing. ppmdither: fix crash with large dithering matrix dimensions. Rename ppmtompeg/headers/search.h to motion_search.h to avoid possible confusion with the OSF system file search.h Fix erroneous shhopt.h dependency in build. 00.04.03 BJH Release 8.4 Add ppmtompeg, adapted from Berkeley's mpeg_encode. Add eyuvtoppm and ppmtoeyuv, and vidtoppm, from Berkeley mpeg tools. Add ppmfade, adapted from Wesley C. Barris' pbmfade. Add ability to extract the alpha channel to tifftopnm, tgatoppm, and ximtoppm. (It's already in pngtoppm, and still missing from ilbmtoppm). pnmtotiff: Change default compression to none, due to removal of LZW capability from Tiff library. Make merge build use symbolic links instead of hard links. Include dependent libraries in the link of the libraries. This is necessary on some systems, and a good idea on others. Use strerror() instead of sys_errlist[] everywhere. If some systems do not have the former, we need to do some work, because strerror() was already used in some places. We do have a report of a BeOS system with no sys_errlist[]. 00.03.24 BJH Release 8.3 Add ppmshadow, by John Walker , dated 1997.08.15. Add ppmlabel, by John Walker, dated June 1995. Add ppmcie by John Walker, dated September 1994. Add character drawing routines by John Walker to libppm. Add sbigtopgm by John Walker, dated January 1998. Handle BMP file color map size parameter in ppmtobmp, bmptoppm. Thanks Marc Moorcroft. Rewrite make files, fix lots of make install bugs. 00.03.20 BJH Release 8.2 Add ppmtojpeg and jpegtopnm. Rename pnmnoraw to pnmtoplainpnm. Add CMYK capability to tifftopnm. Major make file rewrite, especially making install work. Pnmmerge is no longer the default. Shared libraries are. Add pnmtotiffcmyk. Written by Andrew Cooke (Jara Software) jara@andrewcooke.free-online.co.uk 00.03.02 BJH Release 8.1 00.03.02 BJH Add pnmtopng and pngtopnm. I got these from ftp://ftp.au.netbsd.org/pub/NetBSD/packages/distfiles today. Release 2.37.3. I added an "unsigned" and changed the type of 'scaleval' to quiet compiler warnings. 00.03.01 BJH Fix xwdtopnm interpretation of 16 bit TrueColor files. Thanks to Martin Kroeker, mk@daveg.com. 99.09.23 BJH Update xbmtopbm to recognize newer xbm format. CHANGES TO NETPBM THROUGH MARCH 1994 ------------------------------------ Functional changes to Netpbm since 13 October 1993. Minor bug fixes and compatibility fixes are not documented in this file. PBM libpbm1.c strstr() added to libpbm1.c. libpbm5.c BDF font support added. pbmtext BDF font support added. pbmto4425 New filter. pbmtoln03 Command line parsing changed to Pbmplus standard. PGM pgmnoise New filter. PPM picttoppm Updated ppm3d New facility. ppmchange New filter. ppmdim New filter. ppmflash New filter. ppmmix New filter. ppmntsc New filter. ppmqvga Option parsing changed to Pbmplus standard. ppmshift New filter. ppmspread New filter. ppmtoxpm Prototypes added. xpmtoppm Prototypes added. ilbmtoppm Updated. ppmtoilbm Updated. PNM pnmtoddif New filter. pnmhistmap New facility. pnmtops New option (-nocenter) added. Functional changes to Netpbm since 7 December 1993. Minor bug fixes and compatibility fixes are not documented in this file. PGM asciitopgm New filter. fitstopgm Replaced by fitstopnm. pgmtofits Replaced by pnmtofits. pgmtopbm Upgraded. pgmkernel New filter. PPM ppmchange Upgraded. xvminitoppm New filter. PNM pnmalias New filter. pnmtofits Replacement for pgmtofits. fitstopnm Replacement for fitstopgm. pnmtosgi New filter. sgitopnm New filter. pstopnm New filter. CHANGES BETWEEN PBMPLUS AND THE ORIGINAL NETPBM ----------------------------------------------- The following is new in Netpbm (compared to Pbmplus): PBM pbmtext BDF font support added. pbmto4425 Display on an AT&T 4425 Ascii terminal. pbmtoascii A new improved version. pbmtoln03 Convert to DEC LN03+. pbmtolps Fast PostScript creator. pbmtopk Conversion to/from a packed (PK) format font. pktopbm pbmclean Flip isolated pixels. pbmpscale Enlarge pbm image with edge smoothing. PGM asciitopgm Convert an ascii image into pgm. pbmtopgm Convert pbm to pgm by averaging areas. rawtopgm Handles input files without specification of the file size, assuming the input image is quadratic. It also supports a -tb (top bottom flip) option. bioradtopgm Conversion utility for files created by Biorad confocal microscopes. spottopgm Convert SPOT satellite images to pgm. pgmkernel Generate a convolution kernel. pgmnoise Create a pgm file with random pixels. PPM bmptoppm Conversion to/from windows bitmap format. ppmtobmp ppmtogif Updated version. giftoppm Removed (see giftopnm). ppmtoilbm Updated version. ilbmtoppm picttoppm Updated version. ppmtopict ppmtoxpm Updated version, which supports xpm version 3. xpmtoppm ppmtomap Extract all colours from a ppm file. ppmtomitsu Convert to Mitsubishi S340-10 printer format. xvminitoppm Convert an XV thumbnail picture to ppm. ppmtoyuvsplit Conversion to/from YUV triplets. (MPEG / JPEG). yuvsplittoppm ppm3d Create a red/blue stereo image. ppmbrighten Change image saturation and value on an HSV map. ppmchange Change all pixels of one colour to another in a portable pixmap ppmdim Dim a ppm file down to total blackness. ppmdist Simplistic grayscale assignment for machine generated colour images. ppmflash Brighten a picture up to complete white-out ppmmix Blend together two portable pixmaps. ppmnorm Normalize the contrast in a portable pixmap. ppmntsc Make a portable pixmap look like taken from an American TV. ppmqvga Eight plane quantization. ppmshift Shift lines of a portable pixmap left or right by a random amount. ppmspread Displace a portable pixmap's pixels by a random amount. ppmtopjxl Convert a ppm file into an HP PaintJet XL PCL file. PNM pnmtops New option (-nocenter) added. pnmtofits Replacement for pgmtofits/fitstopgm fitstopnm pnmtosgi Conversion to/from sgi image format. sgitopnm pnmtosir Conversion to/from Solitaire image recorder format. sirtopnm giftopnm Replaces giftoppm. Examines the input image and produces a pbm, pgm, or ppm output. pstopnm Convert PostScript to pnm. Requires Ghostscript. zeisstopnm Conversion utility for files created by Zeiss confocal microscopes (the old standard). pnmalias Anti aliasing filter. pnmcomp Composite two portable anymaps together. pnmcrop New options added. pnmpad Add borders to anymap. LIBTIFF A new release of libtiff is included. Please read its supporting documentation. CHANGE LOG FROM PBMPLUS ----------------------- Changes since the 30oct91 patch version: Fixed uninitialized variable in ppmtotga. (John Walker) Added pgmcrater, ppmforge, ppmtoacad, sldtoppm. (John Walker) Slight change to the p?mmerge.c front-ends to allow for main programs that return instead of exitting. Minor clarifications to the pnmconvol man page. Fixed xwdtopnm to read some 16-bit True/Direct files. (David Elliott) Fixed uninitialized variables in pnmtotiff. (Larry Rosenstein, Bayles Holt) Added a couple of checks for \r while reading whitespace. (Larry Rosenstein) Removed all the BROKENPUTC stuff. Now we ignore all return values from putc(), and check ferror() in pm_close(). Added pm_close() calls to many of the filters. Fixed pnmdepth to check for too-large newmaxvals. Improved rounding in pnmdepth and PPM_DEPTH macro. (Tom Lane) Minor fix to ppmtouil. (Mohsen Banan) Added new Imakefiles. (Rainer Klute) Changes since the 05oct91 X11R5 contrib tape version: Fixed minor SysV config error in pbmplus.h. (Tom Lane) Fixed tifftopnm so that BITSPERSAMPLE and SAMPLESPERPIXEL default correctly. Fixed possible bug in tgatoppm line-interleaving code. (Arthur David Olson) Fixed tifftopnm so that colormapped files are read correctly. (PauL Drews, Mike Wade) Corrected use of DefaultRGBDatabase / RGB_DB for imake sites. (Randal L. Schwartz) Bugfix to pnmtops color PostScript in -rle mode. (Angus Duggan) Added auto-turning to pnmtops. Added run-length encoding to ppmtotga. Space optimization to pgmoil. Changes since the 27sep91 comp.sources.misc distribution: Fixed spelling error in giftoppm. Fixed ppmrelief to not shrink the image by 2 rows and columns. Minor fix to pgmramp. Fixed off-by-one error in pnmtoxwd. Man page fix for pnmgamma. (Arthur David Olson) Converted ANSI trigraphs in ppmtosixel into good old octal. (Jeff Glover) Fix to 24/32 bit case in rasttopnm. (Behr de Ruiter) Float/double portability fix to libppm4. (Bruce Holmer, Ronald Khoo) Fixed typo in compat.ksh. (Larry Virden) Fixed int/short incompatibility in tifftopnm. (Salik Rafiq) Changes during the extended beta test period, starting on 15jan91: Lots of fixes from: Anthony A. Datri, Arthur David Olson, David Brooks, David Elliott, Doug Claar, Duncan Sinclair, Francois Pinard, Gerard Leurs, Jim Hanko, Ken Laprade, Klaus U. Schallhorn, Markus Bolz, Mike Hench, Philip Gladstone, R C Smith, Selden E. Ball, Jr., Stephen Uitti, Steve Allen, Tom Lane, update.kpj-jaakkola@athena.dsv.su.se, Charles Karney, Unmesh Agarwala, Ed Pendzik, Juha Sarlin, Tom Tulinsky, Phillip Smith, Lai-King Mau, David Koblas, Mark Donovan. Added a global -version flag. Added bunches of statics and prototypes. Now compiles with zero warnings under gcc -ansi -pedantic. Changed #ifdef __STDC__ to #if __STDC__, since some non-compliant compilers define it as 0. Changed pm_message and pm_error to be varargs routines. Added a portable version of vfprintf for those systems which don't have it. Removed the option of not compiling the pgm and ppm parts. Very few people used it, and it added amazing complexity to the pnm programs, turning them into maintenance nightmares. Merged pbmpaste into pnmpaste. Merged pgmtops and ppmtops into pnmtops. Added auto-scaling and dpi / page size flags to pnmtops. Changed the interpretation of bits in pbmlife to conform with other tools. Changed xwdtopnm to ignore the pixel number in the xwd color structure. Added a -pseudodepth flag to pnmtoxwd. Updated tifftopnm for libtiff 2.4. Added many option flags to pnmtotiff. (J.T. Conklin) Added support for X11R5's new color specifiers rgb: and rgbi:. Added pgmtexture. (James Darrell McCauley) Added ppmtopj, pjtoppm, and ppmdither. (Christos Zoulas) Added ppmtotga. (Mark Shand) Added ppmtosixel. (Rick Vinci) Added pbmtoatk and atktopbm. (Bill Janssen) Added ppmtoyuv and yuvtoppm. (Marc Boucher) Fixes to picttoppm. (George Phillips) Added 24-bit support to ilbmtoppm. (Mark Thompson) Changes since the X.V11R4 / comp.sources.misc distribution of 22nov89: Added pgmramp, pgmedge, pgmtoppm, rgb3toppm, ppmtoxpm, pnmgamma, ximtoppm, pgmtofs, picttoppm, ppmtopict, ppmquantall, anytopnm, pi1toppm, ppmtopi1, sputoppm, spctoppm, pbmto10x, ppmtoicr, ppmmake, xpmtoppm, ppmtopuzz, ppmtouil, ybmtopbm, pbmtoybm, lispmtopgm, pgmtolispm, pbmtogem, pi3topbm, pbmtopi3, pbmtoepson, pbmtoplot, pbmtozinc, pbmtext, pnmnoraw, pnmmargin, pnmfile, pnmindex, ppmtorgb3, gouldtoppm, pgmbentley, pgmoil, ppmrelief, pnmtotiff, ppmtopcx. Merged some filters: rasttopbm and rasttoppm into rasttopnm; pbmtorast and ppmtorast into pnmtorast; xwdtopbm and xwdtoppm into xwdtopnm; pbmtoxwd and ppmtoxwd into pnmtoxwd. Promoted some filters: pcxtopbm to pcxtoppm; ppmarith to pnmarith; ppmconvol to pnmconvol; ppmcscale to pnmdepth; ppmrotate to pnmrotate; ppmscale to pnmscale; ppmshear to pnmshear; ppmsmooth to pnmsmooth; tifftopgm to tifftopnm - new version based on Sam Leffler's libtiff. Bugfixes to pbmtoicon, ppmtops. The Makefiles now have a "merge" option. All flags are now case-insensitive. Added $(MAKE) stuff to Makefile. Changed pnmsmooth from a csh script to a sh script. Made macro use in pbmtox10bm and pbmtoxbm more portable. Moved compataliases to compat.csh, and added compat.ksh. Made ppmtoilbm less Amiga-specific. Added -headerskip and -rowskip flags to rawtopgm. Enhanced rasttopnm to interpret 8-bit rasters with no colormap as grayscale. Changed sscanf %g to %f - some systems can't handle %g on input. Added -expand flag to pbmmask. Speedup to pnmflip - don't buffer if possible. Added color-name-to-value routine to ppm - uses X11's rgb.txt if present. Updated Imakefile support to reflect X.V11R4. Removed picttopbm. Improved pnmcut argument syntax so that negative coords work like pnmpaste. Added "magic" file, for use with the "file" program. 40% speedup for pgmnorm from Robert Stockton (rgs@cs.cmu.edu). Fixed long-standing bug involving colormaps on SPARCstations when compiled with gcc -- had to do with passing structs by value. Removed the -x flag from pnmtorast -- it's not really needed. Fixed subtle bug in the pnm reading code that caused pnmcat to blow it on images that differed greatly in width or height. New version of giftoppm that handles the GIF89a standard, and doesn't use fseek. Fixed fitstopgm to handle three-axis images, such as the Hubble pix. Xwdtopnm and pnmtoxwd finally handle byte-order properly. Added -xysize flag to pnmscale. Added conditional ANSI function prototypes to library routines. Added -noantialias flag to pnmrotate and pnmshear. Removed the TIPS file. No one ever sent in any new tips, so I just moved the few I had into the relevant man pages. That's probably where they belonged in the first place. Added justification flags to pnmcat. Added -map flag to ppmquant - user-specifiable colormap. Also, the Floyd-Steinberg error diffusion finally works right. Added -map flag to pgmtoppm. Added DirectColor support to xwdtopnm and pnmtoxwd. Speedup to pgmtolj from Arthur David Olson: avoid sending whitespace. Fix to pbmtogo from Bo Thide': 2D compression now works. Patch 1 to the X.V11R4 / comp.sources.misc distribution of 22nov89: Fixed bug in pgmtops -rle. Changes since the alt.sources distribution of 13sep89: Small corrections to ppmtorast, pgmtops. Moved pbm/tifftopbm to pgm/tifftopgm - it now handles grayscale TIFF files. Fixed tifftopgm to handle non-native byte order. Changes to tifftopgm to handle bogus AppleScan TIFF files, to have better command syntax, and to use stdio. Optimizations to xbmtopbm, pbmtoxbm, and pbmtox10bm, courtesy of Juha Sarlin, to make them go about three times as fast. Optimization to pgmtops and ppmtops to make them go three times as fast. Optimization to pnmcrop. Added PBMPLUS_BROKENPUTC defines in pbmplus.h to handle systems (such as ULTRIX) which have broken putc() macros. Rewrote ppmscale, pnmcat, and pgmhist to operate line-by-line, instead of reading in the whole image. Rewrote pnmflip to keep only one copy of the image in memory. Added pgmtofits, courtesy of Wilson H. Bent, plus bugfixes to fitstopgm and a patch to giftoppm to handle black&white GIF files. Added picttopbm and rawtopgm. Fixes to xwdtoppm and ppmtoxwd so they compile with SunOS cc as well as gcc. Another small change to ppmtoxwd having to do with colormap size. Changed macptopbm's -headersize flag to be -extraskip. Changed tgatoppm to read color values as BGRA instead of ARGB; the Targa documentation is apparently wrong about the order. Some changes to the Makefiles, partially to work around bugs in gnumake. Got g3topbm working, and added pbmtog3, courtesy of Paul Haeberli. Added some pixrect work-alike code so that rasttopbm, pbmtorast, rasttoppm, and ppmtorast can be used on non-Sun systems. This also provides a final solution to the persistent byte- and bit-order problems on 386's. Moved the SYSV-checking #ifdefs to *after* the include of pbm.h, which defines SYSV. Made all the #else's and #endif's ANSI-compliant. Added manual pages for libpbm, libpgm, libppm, and libpnm, courtesy of Tony Hansen. Changed man page installation so that pages from different sections can go in different directories. Fixed Imakefiles. Changes since the expo.lcs.mit.edu FTP distribution of 06sep89: Added #ifdefs to pnm/libpnm3.c to allow the PBM-PNM-only configuration. Small corrections to TIPS, pnm/Makefile, pnm/Imakefile, ppm/ppmrotate.1, ppm/ppmshear.1, ppm/ppmtoilbm.c, pbm/xwdtopbm.c, ppm/xwdtoppm.c, ppm/ppmtoxwd.c, ppm/ppmtoxwd.1, pbm/x11wd.h. Changes since the comp.sources.misc distribution of 31oct88: Added pbmreduce, pbmlife, pbmmask, and pbmupc. Added gemtopbm, tifftopbm, pcxtopbm, pbmtogo, mgrtopbm, pbmtomgr, cmuwmtopbm, pbmtocmuwm, g3topbm, and pbmtobg. Minor bugfix to pbmtolj. Slight restructuring of most of the programs to use vastly less memory. Various other minor optimizations. Fixed pbmtorast and rasttopbm to handle byte-swapped big-endian 386 boxes. Slight changes to argument syntax of pbmcrop, pbmmake, pbmreduce. Moved to the new PGM package: pbmtops (which now produces Conforming PS). Moved to the new PPM package: giftopbm. Moved to the new PNM package: pbmcrop pbmcut pbmenlarge pbminvert. Consolidated into a single pnmflip tool: pbmfliplr pbmfliptb pbmtrnspos. Consolidated into a single pnmcat tool: pbmcatlr pbmcattb. Added compataliases script for upward compatability with changed tools. Removed xxxtopbm. Added a -headersize flag to macptopbm, to help get around annoying problems in MacPaint file format. Added the RAWBITS compilation-time option, to use a more compact and much faster (but less portable) external format. Removed the CBM format - use compress(1) and / or RAWBITS instead. Pbmpaste (and the new pnmpaste) now accepts negative x and y coords, which are interpreted relative to the right and bottom sides. Changed all programs to accept a "-" file argument as meaning standard input. Removed pbmtox10wd, since it was never very useful (X10 doesn't have xwud). Added Imakefiles, for X11 types to use. Changes since the X.V11R3 distribution of 31aug88: The cbm format has been revised to support run-length encoding. Pbmtops now does run-length encoding. Major changes since the X.V11R2 distribution of 28mar88: The pbm format now has a "magic number". New conversion filters: brushtopbm, giftopbm, pbmtolj, pbmtomacp, pbmtoxwd, and pbmtox10wd. Icontopbm converter has a better parser -- it knows to skip over any extraneous comments at the beginning of the icon file. Pbmtops generates a different PostScript wrapper program -- it should handle huge bitmaps better. Xwdtopbm now handles byte-swapping correctly. Pbmmake takes a flag to specify the color of the new bitmap. Pbmpaste now implements 'or', 'and', and 'xor' operations as well as the default 'replace'.