[magick-users] Reducing number of Colo(u)rs

[Fred Weinhaus]

It may not make any difference, but try +dither rather than -dither none



>I run the following command on my JPEG;
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>convert "Water lilies.jpg" -quantize YIQ -dither None -colors 3
>"Water_Lilies_3_QYIQ_NO.jpg"
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>Expecting the "colors 3" parameters to reduce the image to just three
>colours.
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>When I read the image pixel by pixel and count and aggregate the RGBs I find
>that there a lot more than three RGB combinations. Though there are
>predominately three larger RGB combinations.
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>What am I doing wrong?
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>Thanks
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>Roger Lee