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quadule / colorscore

Finds the dominant colors in an image and scores them against a user-defined palette, using the CIE2000 Delta E formula.
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Issue with older version of ImageMagick #1

Closed diegorv closed 12 years ago

diegorv commented 12 years ago

Hello, again!

First, nice job for your gem! :D

I working in a project wiht colorscore, in my machine this work really fine, but i found a big problem with heroku...

My ImageMagick version: ImageMagick 6.6.9-4 2011-05-06 Q16 Heroku ImageMagick version: ImageMagick 6.5.7-8 2010-12-02 Q16

I`m using Histogram to get color scores and this work cool, but in Heroku this doesnt work, this get wrong colors.... Probably something in:

def initialize(image_path, colors=16, depth=8)
  output = `convert #{image_path} -resize 400x400 -format %c -dither None -quantize LAB -colors #{colors} -depth #{depth} histogram:info:-`
  @lines = output.lines.sort.reverse.map(&:strip).reject(&:empty?)
end

I need help :/

quadule commented 12 years ago

Looks like LAB color is broken in older versions of ImageMagick. YIQ colorspace seems to work just as well in my tests, so I'm using that now instead. The latest version should work correctly.