NAME pnmtoplainpnm – convert portable any map to plain (ASCII) anymap format SYNOPSIS pnmtoplainpnm [pnmfile] DESCRIPTION Reads a portable anymap as input, either from the named file or if no file named, from Standard Input. Writes out the image in plain (ASCII) anymap format to Standard Output. Of the three plain anymap formats, this program…
NAME pnmtopclxl – convert a PNM image to an HP LaserJet PCL XL printer stream SYNOPSIS pnmtopclxl <br>{ [-dpi=N] [-xoffs=N] [-yoffs=N] [-center] [-duplex={vertical|horizontal}] [-format=paperformat] [-feeder=N] [-copies=N] [-rendergray] [-jobsetup=filename] <br>| -embedded <br>} [-colorok] pnmfile1 pnmfile2 … Minimum unique abbreviation of option is acceptable. You may use double hyphens instead of single hyphen to denote options. You…
NAME pnmtopalm – convert a portable anymap into a Palm pixmap SYNOPSIS pnmtopalm [-verbose] [-depth N] [-maxdepth N] [-colormap] [-transparent color] [-offset] [-rle-compression|-scanline-compression] [pnmfile] DESCRIPTION Reads a PNM image as input, from stdin or pnmfile. Produces a Palm pixmap as output. Palm pixmap files are either greyscale files 1, 2, or 4 bits wide, or…
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 pnmtojbig – PNM to JBIG file converter SYNOPSIS pnmtojbig [options] [input-file [output-file]] DESCRIPTION This program is part of Netpbm(1) pnmtojbig reads a PBM or PGM image, compresses it, and outputs the image as a JBIG bi-level image entity (BIE) file. JBIG is a highly effective lossless compression algorithm for bi-level images (one bit per…
NAME pnmtofits – convert a portable anymap into FITS format SYNOPSIS pnmtofits [-max f] [-min f] [pnmfile] DESCRIPTION Reads a portable anymap as input. Produces a FITS (Flexible Image Transport System) file as output. The resolution of the output file is either 8 bits/pixel, or 16 bits/pixel, depending on the value of maxval in the…
NAME pnmtofiasco – Convert a portable anymap to FIASCO compressed file SYNOPSIS pnmtofiasco [option]… [filename]… DESCRIPTION pnmtofiasco compresses the named pbm, pgm, or ppm image files, or Standard Input if no file is named, and produces a FIASCO file on Standard Output. OPTIONS All option names may be abbreviated; for example, –optimize may be written…
Name pnmtoddif – Convert a portable anymap to DDIF format Syntax pnmtoddif pnmtoddif [-resolution x y] [pnmfile [ddiffile]] OPTIONS resolution x y The horizontal and vertical resolution of the output image in dots per inch. Defaults to 78 dpi. pnmfile The filename for the image file in pnm format. If this argument is omitted, input…
NAME pnmtile – replicate a portable anymap into a specified size SYNOPSIS pnmtile width height [pnmfile] DESCRIPTION Reads a portable anymap as input. Replicates it until it is the specified size, and produces a portable anymap as output. SEE ALSO pnm(5) AUTHOR Copyright (C) 1989 by Jef Poskanzer. Index
NAME pnmstitch – stitch together two panoramic (side-by-side) photographs SYNOPSIS pnmstitch [ [left_filespec] right_filespec | left_filespec right_filespec output_filespec ] [-width=width] [-height=height] [-xrightpos=column] [-yrightpos=row] [-stitcher={RotateSliver, BiLinearSliver,LinearSliver}] [-filter={LineAtATime,HorizontalCrop}] [-output=output_filespec] [-verbose] All options can be abbreviated to their shortest unique prefix. You may use two hyphens instead of one. You may separate an option name and its value…
NAME pnmsplit – split a multi-image portable anymap into multiple single-image files SYNOPSIS pnmsplit [pnmfile[ output_file_pattern]] DESCRIPTION Reads a Netpbm file as input. Copies each image in the input into a separate file, in the same format. pnmfile is the file specification of the input file, or – to indicate Standard Input. The default is…
NAME pnmsmooth – smooth out an image SYNOPSIS pnmsmooth [-size width height] [-dump dumpfile] [pnmfile] DESCRIPTION Smooths out an image by replacing each pixel with the average of its width X height neighbors. It is implemented as a C progam that generates a PGM convolution matrix and then invokes pnmconvol. OPTIONS -size width height Specifies…
NAME pnmshear – shear a portable anymap by some angle SYNOPSIS pnmshear [-noantialias] angle [pnmfile] DESCRIPTION Reads a portable anymap as input. Shears it by the specified angle and produces a portable anymap as output. If the input file is in color, the output will be too, otherwise it will be grayscale. The angle is…
NAME pnmscalefixed – scale a portable anymap quickly, but less accurate DESCRIPTION pnmscalefixed is the same thing as pnmscale except that it uses fixed point arithmetic internally instead of floating point, which makes it run faster. In turn, it is less accurate and may distort the image. Use the pnmscale man page with pnmscalefixed. This…
NAME pnmscale – scale a portable anymap SYNOPSIS pnmscale scale_factor [pnmfile] pnmscale -reduce reduction_factor [pnmfile] pnmscale [{-xsize=cols | -width=cols | -xscale=factor}] [{-ysize=rows | -height=rows | -yscale=factor}] [pnmfile] pnmscale -xysize cols rows [pnmfile] pnmscale -pixels n [pnmfile] Miscellaneous options: -verbose -nomix Minimum unique abbreviation of option is acceptable. You may use double hypens instead of single…
NAME pnmrotate – rotate a portable anymap by some angle SYNOPSIS pnmrotate [-noantialias] angle [pnmfile] DESCRIPTION Reads a portable anymap as input. Rotates it by the specified angle and produces a portable anymap as output. If the input file is in color, the output will be too, otherwise it will be grayscale. The angle is…
NAME pnmremap – replace colors in a PPM image with colors from another set SYNOPSIS pnmremap [-floyd|-fs|-nfloyd|-nofs] [-firstisdefault] [-verbose] [-mapfile=mapfile] [-missingcolor=color] [pnmfile] 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 between…
NAME pnmquantall – run Pnmquant on a bunch of files all at once, so they share a common colormap SYNOPSIS pnmquantall [-ext extension] ncolors netpbm_file… Note that the usual syntax rules for Netpbm programs don’t apply to this program. For example, you can’t abbreviation -ext and you can’t put it anywhere on the line you…
NAME pnmquant – quantize the colors in a Netpbm image to a smaller set SYNOPSIS pnmquant [-center|-meancolor|-meanpixel] [-floyd|-fs] [-nofloyd|-nofs] [-spreadbrightness|-spreadluminosity] ncolors [pnmfile] 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…
NAME pnmpsnr – compute the difference between two portable anymaps SYNOPSIS pnmpsnr [pnmfile1] [pnmfile2] DESCRIPTION Reads two PBM, PGM, or PPM files, or PAM equivalents, as input. Prints the peak signal-to-noise ratio (PSNR) difference between the two images. This metric is typically used in image compression papers to rate the distortion between original and decoded…