The Linux Manuals (man pages) document is an important part of Linux documents. Linux Manuals are organized as several sections. Each section has a group of commands for a specific area in Linux usage, administration or development.
ppmtogif – convert a portable pixmap into a GIF file Synopsisppmtogif [-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 signs between…
ppmtoeyuv – convert a portable pixmap into a Berkeley YUV file Synopsisppmtoeyuv [ppmfile] DescriptionReads 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 input file. ppmtoeyuv…
ppmtobmp – convert a portable pixmap into a BMP file Synopsisppmtobmp [-windows] [-os2] [-bpp=bits_per_pixel] [ppmfile] DescriptionReads a portable pixmap as input. Produces a Microsoft Windows or OS/2 BMP file as output. OptionsAll options can be abbreviated to their shortest unique prefix and you can use a double dash in place of the single dash, GNU-style….
ppmtoascii – convert a PPM image to ASCII graphics with ANSI terminal color Synopsisppmtoascii [-1×2|-2×4] [ppmfile] DescriptionThis 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 a color text…
ppmtoarbtxt – generate image in arbitrary text format from PPM image Synopsisppmtoarbtxt bodyskl [-hd headskl] [-tl tailskl] [ppmfile] DescriptionThis 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 PNM plain format,…
ppmtoapplevol – convert a PPM into an Apple volume label image Synopsisppmtoapplevol [ppmfile] DescriptionThis 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 that format. The…
ppmtoacad – convert portable pixmap to AutoCAD database or slide Synopsisppmtoacad [-dxb] [-poly] [-background colour] [-white] [-aspect ratio] [-8] [ppmfile] DescriptionReads 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 An AutoCAD binary database…
ppmspread – displace a portable pixmap’s pixels by a random amount Synopsisppmspread amount [ppmfile] DescriptionReads 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 seem to be…
ppmshift – shift lines of a portable pixmap left or right by a random amount Synopsisppmshift shift [ppmfile] DescriptionReads 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 shifted at most….
ppmshadow – add simulated shadows to a portable pixmap image Synopsisppmshadow [-b blur_size] [-k] [-t] [-x xoffset] [-y yoffset] [-u] [pnmfile] Descriptionppmshadow 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 be black, as…
ppmrough – create PPM image of two colors with a ragged border between them Synopsisppmrough [-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 one. You…
ppmrelief – run a Laplacian relief filter on a portable pixmap Synopsisppmrelief [ppmfile] DescriptionReads 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 Alsopgmbentley(1), pgmoil(1), ppm(5) AuthorCopyright (C)…
ppmrainbow – Generate a rainbow Synopsisppmrainbow [-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. Descriptionppmrainbow generates a PPM image…
ppmqvga – 8 plane quantization Synopsisppmqvga [ options ] [ input file ] Descriptionppmqvga 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. Produces no progress reporting,…
ppmquantall – run ppmquant on a bunch of files all at once, so they share a common colormap Synopsisppmquantall [-ext extension] ncolors ppmfile … DescriptionTakes 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 the input files…
ppmquant – quantize the colors in a portable pixmap down to a specified number Synopsisppmquant [-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 equals signs…
ppmpat – make a pretty pixmap Synopsisppmpat -gingham2|-g2|-gingham3| -g3|-madras|-tartan| -poles|-squig|-camo| -anticamo width height DescriptionProduces 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 info on using…
ppmntsc – make a portable pixmap look like taken from an American TV Synopsisppmntsc [ –pal ] [ –legalonly ] [ –illegalonly ] [ –correctedonly ] [ –verbose ] [ –debug ] [ infile ] Minimum unique abbreviations of options are acceptable. DescriptionThis program makes colors legal in the NTSC (or PAL) color systems. Often,…
pnmnorm – normalize the contrast in a Netbpm image Synopsispnmnorm [-bpercent N | -bvalue N] [-wpercent N | -wvalue N] [-keephues] [-brightmax] [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 an equals sign…
ppmmix – blend together two portable pixmaps Synopsisppmmix fadefactor ppmfile1 ppmfile2 DescriptionReads two portable pixmaps as input. Mixes them together using the specified fade factor. The fade factor may be in the range from 0.0 (only ppmfile1’s image data) to 1.0 (only ppmfile2’s image data). Anything in between gains a smooth blend between the two…