April 2020
Intermediate to advanced
438 pages
12h 2m
English
Content preview from Python Image Processing Cookbook
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Transforming color space (RGB → Lab)
The CIELAB (abbreviated as Lab) color space consists of three color channels, expressing the color of a pixel as three tuples (L, a, b), where the L channel stands for luminosity/illumination/intensity (lightness). The a and b channels represent the green-red and blue-yellow color components, respectively. This color model separates the intensity from the colors completely. It's device-independent and has a large gamut. In this recipe, you will see how to convert from RGB into the Lab color space and vice versa and the usefulness of this color model.
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