Section 1: user commands and tools
NAME pnmtojpeg – convert PNM image to a JFIF ("JPEG") image SYNOPSIS pnmtojpeg [ options ] [ filename ] DESCRIPTION pnmtojpeg converts the named PBM, PGM, or PPM image file, or the standard input if no file is named, to a JFIF file on the standard output. pnmtojpeg uses the Independent JPEG Group’s JPEG library…
NAME ppmtoilbm – convert a portable pixmap into an ILBM file SYNOPSIS ppmtoilbm [-maxplanes|-mp N] [-fixplanes|-fp N] [-ham6|-ham8] [-dcbits|-dcplanesrgb] [-normal|-hamif|-hamforce|-24if|-24force| -dcif|-dcforce|-cmaponly] [-ecs|-aga] [-compress|-nocompress] [-cmethod type] [-mapppmfile] [-savemem] [ppmfile] DESCRIPTION Reads a portable pixmap as input. Produces an ILBM file as output. Supported ILBM types are: Normal ILBMs with 1-16 planes. Amiga HAM with 3-16 planes….
NAME ppmtoicr – convert a portable pixmap into NCSA ICR format SYNOPSIS ppmtoicr [-windowname name] [-expand expand] [-display display] [-rle] [ppmfile] DESCRIPTION Reads a portable pixmap file as input. Produces an NCSA Telnet Interactive Color Raster graphic file as output. If ppmfile is not supplied, ppmtoicr will read from standard input. Interactive Color Raster (ICR)…
NAME ppmtogif – convert a portable pixmap into a GIF file SYNOPSIS ppmtogif [-interlace] [-sort] [-map mapfile] [-transparent [=]color] [-alpha pgmfile] [-comment text] [-nolzw] [ppmfile] All options can be abbreviated to their shortest unique prefix. You may use two hyphens instead of one to designate an option. You may use either white space or equals…
NAME ppmtoeyuv – convert a portable pixmap into a Berkeley YUV file SYNOPSIS ppmtoeyuv [ppmfile] DESCRIPTION Reads a portable pixmap as input. Produces a Berkeley Encoder YUV (not the same as Abekas YUV) file on the Standard Output file. With no argument, takes input from Standard Input. Otherwise, ppmfile is the file specification of the…
NAME ppmtobmp – convert a portable pixmap into a BMP file SYNOPSIS ppmtobmp [-windows] [-os2] [-bpp=bits_per_pixel] [ppmfile] DESCRIPTION Reads a portable pixmap as input. Produces a Microsoft Windows or OS/2 BMP file as output. OPTIONS All options can be abbreviated to their shortest unique prefix and you can use a double dash in place of…
NAME ppmtoascii – convert a PPM image to ASCII graphics with ANSI terminal color SYNOPSIS ppmtoascii [-1×2|-2×4] [ppmfile] DESCRIPTION This program is part of Netpbm(1) ppmtoascii reads a PPM image as input and produces a somewhat crude ASCII graphic image as output, with ANSI terminal control characters so it has crude color when sent to…
NAME ppmtoarbtxt – generate image in arbitrary text format from PPM image SYNOPSIS ppmtoarbtxt bodyskl [-hd headskl] [-tl tailskl] [ppmfile] DESCRIPTION This program is part of Netpbm(1) ppmtoarbtxt generates simple text-based graphics formats based on format descriptions given as input. A text-based graphics format is one in which an image is represented by text (like…
NAME ppmtoapplevol – convert a PPM into an Apple volume label image SYNOPSIS ppmtoapplevol [ppmfile] DESCRIPTION This program is part of Netpbm(1) ppmtoapplevol reads a PPM image as input and produces an Apple volume label image as output. EFI-based Apple systems use a simple image format to provide textual labels for devices. This program generates…
NAME ppmtoacad – convert portable pixmap to AutoCAD database or slide SYNOPSIS ppmtoacad [-dxb] [-poly] [-background colour] [-white] [-aspect ratio] [-8] [ppmfile] DESCRIPTION Reads a portable pixmap as input. Produces an AutoCAD® slide file or binary database import (.dxb) file as output. If no ppmfile is specified, input is read from standard input. OPTIONS -dxb…
NAME ppmspread – displace a portable pixmap’s pixels by a random amount SYNOPSIS ppmspread amount [ppmfile] DESCRIPTION Reads a portable pixmap as input. Moves every pixel around a bit relative to its original position. amount determines by how many pixels a pixel is to be moved around at most. Pictures processed with this filter will…
NAME ppmshift – shift lines of a portable pixmap left or right by a random amount SYNOPSIS ppmshift shift [ppmfile] DESCRIPTION Reads a portable pixmap as input. Shifts every row of image data to the left or right by a certain amount. The ‘shift’ parameter determines by how many pixels a row is to be…
NAME ppmshadow – add simulated shadows to a portable pixmap image SYNOPSIS ppmshadow [-b blur_size] [-k] [-t] [-x xoffset] [-y yoffset] [-u] [pnmfile] DESCRIPTION ppmshadow adds a simulated shadow to an image, giving the appearance that the contents of the image float above the page, casting a diffuse shadow on the background. Shadows can either…
NAME ppmrough – create PPM image of two colors with a ragged border between them SYNOPSIS ppmrough [-left pixels] [-right pixels] [-top pixels] [-bottom pixels] [-width pixels] [-height pixels] [-bg rgb:##/##/##] [-fg rgb:##/##/##] [-var pixels] [-randomseed seed] [-verbose] All options can be abbreviated to their shortest unique prefix. You may use two hyphens instead of…
NAME ppmrelief – run a Laplacian relief filter on a portable pixmap SYNOPSIS ppmrelief [ppmfile] DESCRIPTION Reads a portable pixmap as input. Does a Laplacian relief filter, and writes a portable pixmap as output. The Laplacian relief filter is described in "Beyond Photography" by Holzmann, equation 3.19. It’s a sort of edge-detection. SEE ALSO pgmbentley(1),…
NAME ppmrainbow – Generate a rainbow SYNOPSIS ppmrainbow [-width=number] [-height=number] [-tmpdir=directory] [-verbose] color … All options can be abbreviated to their shortest unique prefix. You may use two hyphens instead of one to designate an option. You may use either white space or equals signs between an option name and its value. DESCRIPTION ppmrainbow generates…
NAME ppmqvga – 8 plane quantization SYNOPSIS ppmqvga [ options ] [ input file ] DESCRIPTION ppmqvga quantizes PPM files to 8 planes, with optional Floyd-Steinberg dithering. Input is a PPM file from the file named, or standard input of no file is provided. Options -d dither. Apply Floyd-Steinberg dithering to the data -q quiet….
NAME ppmquantall – run ppmquant on a bunch of files all at once, so they share a common colormap SYNOPSIS ppmquantall [-ext extension] ncolors ppmfile … DESCRIPTION Takes a bunch of portable pixmap as input. Chooses ncolors colors to best represent all of the images, maps the existing colors to the new ones, and overwrites…
NAME ppmquant – quantize the colors in a portable pixmap down to a specified number SYNOPSIS ppmquant [-floyd|-fs] ncolors [ppmfile] ppmquant [-floyd|-fs] [-nofloyd|-nofs] -mapfile mapfile [ppmfile] All options can be abbreviated to their shortest unique prefix. You may use two hyphens instead of one to designate an option. You may use either white space or…
NAME ppmpat – make a pretty pixmap SYNOPSIS ppmpat -gingham2|-g2|-gingham3| -g3|-madras|-tartan| -poles|-squig|-camo| -anticamo width height DESCRIPTION Produces a portable pixmap of the specified width and height, with a pattern in it. This program is mainly to demonstrate use of the ppmdraw routines, a simple but powerful drawing library. See the ppmdraw.h include file for more…