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. 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1999, Bryan Henderson needed some minor bugs fixed, and wanted to clean up the mess of unsupported versions and outdated documentation of these tools.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. 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. CHANGE HISTORY -------------- 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 Pnmtogif -- 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. 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 pnmshadow, 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'.