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Atari demoscene BBS
| Re: Multi Palette File format |
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Posted by: zerkman
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Oct,13.2012-09:00
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about dithering.
Converting a 24-bit image to 15-bit induces posterization, so dithering is useful to limit the visual effect of reducing the number of color levels. I chose not to handle that, because I assume this is the graphician's work to do so. The input image must already have the correct number of color levels, and the work for the converter is just to convert the image encoding.
about the color interlacing to deal with the 29791 colors.
The (x+y)%2 pixel color interlacing scheme tends to complexify the image conversion and reduce the efficiency of palette entry reuse. I made some tests in my encoder and I could measure the number of color allocation errors (the resulting penalty value displayed after the encoding) was higher than when using that scheme. This can be easily put back in the converter, you have the code now ;)
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Topic
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Posted by
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Date
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Multi Palette File format
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zerkman
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Oct,09.2012-00:58
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Re: Multi Palette File format
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Jace
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Oct,09.2012-06:15
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Re: Multi Palette File format
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ggn
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Oct,09.2012-19:54
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Re: Multi Palette File format
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evil
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Oct,10.2012-16:55
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Re: Multi Palette File format
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zerkman
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Oct,10.2012-21:53
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Re: Multi Palette File format
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baah
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Oct,10.2012-23:07
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Re: Multi Palette File format
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Jace
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Oct,11.2012-08:58
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Re: Multi Palette File format
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nativ
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Oct,11.2012-20:33
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Re: Multi Palette File format
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Cyg
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Oct,12.2012-13:12
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Re: Multi Palette File format
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nativ
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Oct,12.2012-15:08
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Re: Multi Palette File format
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zerkman
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Oct,13.2012-09:00
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Re: Multi Palette File format
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evil
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Oct,11.2012-15:29
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Re: Multi Palette File format
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zerkman
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Oct,11.2012-16:57
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Re: Multi Palette File format
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evil
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Oct,11.2012-18:41
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Re: Multi Palette File format
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s_t_s
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Oct,14.2012-15:58
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Re: Multi Palette File format
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Petari
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Dec,07.2012-15:40
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What's the anti-troll code?
That's your personal code to be able to add comments and messages on the dhs.nu site.
Don't have a code or forgot it? Fix it here.
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