Simulate Photoshop's saturation changes in Imagemagick

Posted by Ambirex on Stack Overflow See other posts from Stack Overflow or by Ambirex
Published on 2009-07-01T16:47:56Z Indexed on 2010/04/04 17:53 UTC
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Filed under:

imagemagick

|

photoshop

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color-space

In Photoshop you can adjust the hue, saturation and lightness of an image with three sliders. ImageMagick you can modulate the brightness, saturation, and hue.

Minimizing the saturation correctly produces a black and white image in both programs.

Maxing out the saturation appears close, but ImageMagick appears to soften some of the blown out edges while Photoshop will expose more the the compression artifacts.

How can I accurately reproduce Photoshop's saturation changes from within ImageMagick, or other command line tool.

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