But "-interpolate bicubic" is not a valid setting. I suggest changing 'bicubc' to 'catrom', which gives a useful second-order continuity.Good settings for this [the "-interpolate" setting] are the 'bilinear' and 'bicubic' interpolation settings, which give smooth color gradients, and the 'integer' setting for a direct, unsmoothed lookup of color values.
Post any defects you find in the released or beta versions of the ImageMagick software here. Include the ImageMagick version, OS, and any command-line required to reproduce the problem. Got a patch for a bug? Post it here.
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https://www.imagemagick.org/script/comm ... s.php#clut says:
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