This is the command ppmntsc that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
ppmntsc - make a portable pixmap look like taken from an American TV
SYNOPSIS
ppmntsc [ --pal ] [ --legalonly ] [ --illegalonly ] [ --correctedonly ] [ --verbose ] [
--debug ] [ infile ]
Minimum unique abbreviations of options are acceptable.
DESCRIPTION
This program makes colors legal in the NTSC (or PAL) color systems. Often, images
generated on the computer are made for use in movies which ultimately end up on video
tape. However, the range of colors (as specified by their RGB values) on a computer does
not match the range of colors that can be represented using the NTSC (or PAL) systems. If
an image with "illegal" colors is sent directly to an NTSC (or PAL) video system for
recording, the "illegal" colors will be clipped. This may result in an undesirable
looking picture.
This utility tests each pixel in an image to see if it falls within the legal NTSC (or
PAL) range. If not, it raises or lowers the pixel's saturation in the output so that it
does fall within legal limits. Pixels that are already OK just go unmodified into the
output.
Input is from the file named input. If input is -, input is from Standard Input. If you
don't specify input, input is from Standard Input.
Output is always to Standard Output.
This program handles multi-image PPM input, producing multi-image PPM output.
OPTIONS
--pal Use the PAL transform instead of the default NTSC.
--verbose
Print a grand total of the number of illegal pixels.
--debug
Produce a humongous listing of illegal colors and their legal counterparts. NOTE:
This option may produce a great deal of output.
--legalonly
Output only pixels that are already legal. Output black in place of pixels that
are not.
--illegalonly
Output only pixels that are illegal (and output them uncorrected). Output black in
place of pixels that are already legal.
--correctedonly
Output only pixels that are corrected versions of illegal pixels. Output black in
place of pixels that are already legal.
Use ppmntsc online using onworks.net services
