RGB <-> HCL conversion not correct

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ippei
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Joined: 2012-08-13T04:26:41-07:00
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RGB <-> HCL conversion not correct

Post by ippei »

branches/ImageMagick-6

Recently added HCL support routines, ConverRGBToHCL() and ConvertHCLToRGB() in gem.c, will be fixed by a patch I posted with viewtopic.php?f=2&t=21646.
It fixes:
  • RGB -> HCL: Wrong hue will be returned if g < b < r.
  • HCL -> RGB: Unexpectedly lightened.
Please check it.
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magick
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Joined: 2003-05-31T11:32:55-07:00

Re: RGB <-> HCL conversion not correct

Post by magick »

Thanks for the problem report and patch. We'll commit it to the Subversion repository by sometime tomorrow.
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