Updated: 07 February 2010
+ +avstopam - convert an AVS X image to a Netpbm image +
avstopam - convert an AVS X image to a Netpbm image
This program is part of Netpbm. +
This program is part of Netpbm.
avstopam reads a Stardent AVS X image as input and produces a Netpbm -image as output. +image as output.
avsfile is the input file, which defaults to Standard Input. -Output is always on Standard Output. +Output is always on Standard Output.
There are no command line options defined specifically for avstopam, but it recognizes the options common to all programs based on libnetpbm (See -Common Options.) +Common Options.)
Copyright © 2010 Scott Pakin, -scott+pbm@pakin.org +scott+pbm@pakin.org
This page, part of the Netpbm user's guide, describes FAX formats in relation to Netpbm facilities. - +
The ITU (formerly CCITT) publishes standards for operation of fax machines (the idea is to provide a way to be sure that a fax machine is able to receive a fax sent by another). These standards incidentally specify graphics file diff -urNp a/userguide/libnetpbm_ug.html b/userguide/libnetpbm_ug.html --- a/userguide/libnetpbm_ug.html 2022-01-03 16:56:37.732614250 +0100 +++ b/userguide/libnetpbm_ug.html 2022-01-03 16:58:29.891416020 +0100 @@ -374,7 +374,7 @@ plain format.
The Libnetpbm Netpbm Image -Processing Manual describes the the libnetpbm functions for +Processing Manual describes the libnetpbm functions for processing image data.
The Libnetpbm Utility Manual diff -urNp a/userguide/pamfunc.html b/userguide/pamfunc.html --- a/userguide/pamfunc.html 2022-01-03 16:56:37.730614236 +0100 +++ b/userguide/pamfunc.html 2022-01-03 16:58:29.892416027 +0100 @@ -60,7 +60,7 @@ output image. and bit string (such as and with 01001000). For the arithmetic functions, the function arguments and results are the fraction that a sample is of the maxval, i.e. normal interpretation of PAM tuples. But for the bit string -functions, the value is the the bit string whose value as a binary cipher is +functions, the value is the bit string whose value as a binary cipher is the sample value, and the maxval indicates the width of the bit string.
pammixmulti - blend together multiple PAM images +
pammixmulti - blend together multiple PAM images
Minimum unique abbreviation of an option is acceptable. You can use a single hyphen instead of double hyphens to denote options. You can use white space in place of the equals sign to separate an option name from its -value. +value.
This file is part of Netpbm. +
This file is part of Netpbm.
pammixmulti mixes two or more images to produce a new image. The -program provides multiple ways to interpret "mix." +program provides multiple ways to interpret "mix."
In addition to the options common to all programs based on libnetpbm (most notably -quiet, see Common Options), pammixmulti recognizes the following -command line options: +command line options:
mask, each pixel in the output is produced by a
weighted average of the corresponding pixels from all the input images based
-on the grayscale level of an additional mask image.
+on the grayscale level of an additional mask image.
Use this to ensure you get the same image on separate invocations. +
Use this to ensure you get the same image on separate invocations.
You supply the names of the files to mix as non-option arguments. +
You supply the names of the files to mix as non-option arguments.
Average a bunch of PPM images to produce a new PAM image: +
Average a bunch of PPM images to produce a new PAM image:
pammixmulti input*.ppm >output.ppm
Mix these same images by taking each pixel from a randomly selected input -image: +image:
pammixmulti --blend=random input*.ppm >output.ppm
Use a mask image to control the fading among input images on a -pixel-by-pixel basis: +pixel-by-pixel basis:
pammixmulti --blend=mask --maskfile=mask.pgm >output.pam \
one.pam two.pam three.pam four.pam
Do the same but with more abrupt transitions: +
Do the same but with more abrupt transitions:
pammixmulti --blend=mask --maskfile=mask.pgm --stdev=0.0 >output.pam \
one.pam two.pam three.pam four.pam
and now with more gradual transitions: +
and now with more gradual transitions:
pammixmulti --blend=mask --maskfile=mask.pgm --stdev=1.0 >output.pam \
@@ -133,12 +133,12 @@ pixel-by-pixel basis:
HISTORY
-pammixmulti was new in Netpbm 10.85 (December 2018).
+
pammixmulti was new in Netpbm 10.85 (December 2018).
AUTHOR
-Copyright 2018 Scott Pakin, scott+pbm@pakin.org.
+
Copyright 2018 Scott Pakin, scott+pbm@pakin.org.
SEE ALSO
@@ -146,20 +146,20 @@ pixel-by-pixel basis:
ppmmix,
pamarith,
pnm,
-pam
+pam
Table Of Contents
pampaintspill - smoothly spill colors into the background
Minimum unique abbreviations of option are acceptable. You may use double hyphens instead of single hyphen to denote options. You may use white space in place of the equals sign to separate an option name -from its value. +from its value.
This program is part of Netpbm. +
This program is part of Netpbm.
pampaintspill produces a smooth color gradient from all of the
non-background-colored pixels in an input image, effectively "spilling
@@ -40,27 +40,27 @@ paint" onto the background. pampaint
Results are generally best when the input image contains just a few, crisp spots of color. Use your drawing program's pencil tool — as opposed to a -paintbrush or airbrush tool — with a small nib. +paintbrush or airbrush tool — with a small nib.
In addition to the options common to all programs based on libnetpbm (most notably -quiet, see Common Options), pampaintspill recognizes the following -command line options: +command line options:
Use this to ensure you get the same image on separate invocations. +
Use this to ensure you get the same image on separate invocations.
-This option was new in Netpbm 10.94 (March 2021). +
This option was new in Netpbm 10.94 (March 2021).
pampaintspill was new in Netpbm 10.50 (March 2010). +
pampaintspill was new in Netpbm 10.50 (March 2010).
Copyright © 2010–2021 Scott Pakin, -scott+pbm@pakin.org. +scott+pbm@pakin.org.
Updated: 31 July 2010
-Table Of Contents
+Table Of Contents
Minimum unique abbreviation of option is acceptable. You may use double hyphens instead of single hyphen to denote options. You may use white -space in place of the equals sign to separate an option name from its value. +space in place of the equals sign to separate an option name from its value.
This program is part of Netpbm. +
This program is part of Netpbm.
pamrecolor changes an image's colors to be as close as possible to given target colors but with the constraint that the @@ -39,17 +39,17 @@ image will look identical if both are co (e.g. with ppmtopgm). You can have pamrecolor select target colors randomly, specify a single hue for the entire image, or take the -target colors from a target image. +target colors from a target image.
In addition to real Netpbm images, pamrecolor works on pseudo-Netpbm images based on arbitrary color spaces. You can define the color space -explicitly or choose one of many that pamrecolor knows by name. +explicitly or choose one of many that pamrecolor knows by name.
The output is a PAM image on standard output. Options control the exact format of the PAM. If you want a PNM (PBM, PGM, or PPM) image, use pamtopnm on the output. There is no need to convert if you will use the image as input to a current Netpbm -program, but many other programs don't know what a PAM is. +program, but many other programs don't know what a PAM is.
In addition to the options common to all programs based on libnetpbm (most notably -quiet, see Common Options), pamrecolor recognizes the following -command line options: +command line options:
pamrecolor knows the following color spaces (name values): +
pamrecolor knows the following color spaces (name values):
The default is "ntsc" because this is the color space that the Netpbm formats and many graphics utilities use. As a counterexample, GIMP uses sRGB as its native color -space. +space.
The luminance values pamrecolor uses for each of the above come from Bruce Lindbloom's diff -urNp a/userguide/pbmtog3.html b/userguide/pbmtog3.html --- a/userguide/pbmtog3.html 2022-01-03 16:56:37.732614250 +0100 +++ b/userguide/pbmtog3.html 2022-01-03 16:58:29.894416041 +0100 @@ -36,7 +36,7 @@ use those encodings.
In addition to the options common to all programs based on libnetpbm (most notably -quiet, see Common Options), pbmtog3 recognizes the following -command line options: +command line options:
Before Netpbm 10.79 (June 2017), there was a different program by the same -name in Netpbm, which was written by by Paul Haeberli +name in Netpbm, which was written by Paul Haeberli <paul@manray.sgi.com> in 1989 and then modified extensively by others. diff -urNp a/userguide/ppmtogif.html b/userguide/ppmtogif.html --- a/userguide/ppmtogif.html 2022-01-03 16:56:37.733614257 +0100 +++ b/userguide/ppmtogif.html 2022-01-03 16:58:29.895416049 +0100 @@ -5,17 +5,17 @@
ppmtogif - replaced by pamtogif
This program is part of Netpbm. +
ppmtogif was replaced in Netpbm 10.37 (December 2006) by pamtogif.
pamtogif is mostly backward compatible with ppmtogif. +
One way pamtogif is not backward compatible with ppmtogif is that to specify a transparency (alpha) mask with ppmtogif, you supply the transparency as a separate pseudo-PGM image and use the