ppmtospu1
Convert a ppm image to an atari spectrum 512 image
Usage
ppmtospu
[-d0|-d2|-d4] [ppmfile]
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 with white space instead of an equals sign.
Overview
This program is part of Netpbm(1) .
This program converts from the PPM format to the uncompressed Spectrum 512 image format used on Atari ST computers.
Input comes from the file you name with the ppmfile argument, or Standard Input by default. Output goes to Standard Output.
The input must be 320 pixels wide by 200 pixels high. If you have an image of a different size, you can use pamcut or pamscale to force it to these dimensions.
Options
In addition to the options common to all programs based on libnetpbm (most notably -quiet, see
Common Options ⟨index.html#commonoptions⟩ ), ppmtospu recognizes the following command line options:
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-d0 -
The program does no dithering.
-
-d2 -
The program uses a 2x2 ordered dither.
This is the default.
-
-d4 -
The program uses a 4x4 ordered dither.
Document source
This manual page was generated by the Netpbm tool 'makeman' from HTML source. The master documentation is at
-
http://netpbm.sourceforge.net/doc/ppmtospu.html
Releases
3 releases since Debian 12 (Bookworm); the text changed 1 time.