Legacy ImageMagick Discussions Archive

Hi All,

So this is def a bug. I downgraded to ImageMagick 6.6.5-10 and everything worked fine.

Its possible I'm missing something and this a 'feature' of the newer version. If so please let me know, I'd love to upgrade!

Thank you,

Keith

Anthony,

I think either I was unclear or one of us made a math mistake -- I'm showing a distance of around 49 for the color I said was wrong. You and I got the same distance (around 11) for the color that should have been chosen.

Here is an online calculator to confirm: http://www.calculatorsoup ...

Hey Anthony,

Thank you for the response!

For me treedepth did not seem to work. The color problems stayed. Just to make sure I did it correctly, here was the command:

convert cute_cat.png +dither -treedepth 8 -colors 24 -remap palette_96.png out.png

Actually some of the time with treedepth 8 ...

Hi All,

I think this is actually a bug, but I posted here and don't want to duplicate a post...

Using ImageMagick 6.6.9-5 on my MacBook Pro.

I'm taking an image and: a) running a conversion b) streaming to a dat file

Starting image: http://keithgould.s3.amazonaws.com/resized.png

A) convert ...

Some insights:

Digging a bit deeper into it, it seems the -quantize operator comes into play here.

For anyone else experience this problem:

Check out: http://www.imagemagick.org/Usage/quantize/#colors and look at Color Quantization and Color Space/

So far I've landed on -quantize YIQ. Not sure ...

Hi,

I am experiencing this problem (bug?) and am using the newest ImageMagick 6.6.9-5 on my MacBook Pro.

The goal is to take the starting image and reduce to the best 24 colors given a palette. However purple seems to be creeping in.

starting image: http://keithgould.s3.amazonaws.com/cute_cat.png ...