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how to convert a 24 bit color picture to 15 bit color

https://imagemagick.com/discourse-server/viewtopic.php?t=12210

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Re: how to convert a 24 bit color picture to 15 bit color

Posted: 2008-10-07T14:23:08-07:00
by grego
Ok, I'm almost complete newbie, but something close to
convert t32.png +dither -depth 15 t15.png
might do it for you, turning t32.png to t15.png.

grego at http://mpaja.com

Re: how to convert a 24 bit color picture to 15 bit color

Posted: 2008-10-07T17:07:21-07:00
by anthony
At this time IM only deals with specific bit depths. or output ranges.
I doubt it will work. Especially for the PNG coder.

I have also wanted to be able to alternatively specify 'Max' value for some formats like NetPBM formats and IM enumerated pixel (txt:) formats. For example -maxvalue=100 to output colors in the range of 0 to 99.
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