RGB to LAB and LAB to RGB Color Space Conversion for Images

MATLAB 879B 186 views 0 downloads 1 credits
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Resource Overview

Implementation of bidirectional conversion between RGB and LAB color formats, enabling convenient image processing operations in the LAB color space with practical code examples

Detailed Documentation

During image processing workflows, we have implemented bidirectional conversion between RGB and LAB color formats, which facilitates more effective image manipulation within the LAB color space. This conversion process typically involves using color transformation matrices and nonlinear operations - first converting RGB to CIE XYZ color space using a standardized transformation matrix, then applying a nonlinear function to convert XYZ to LAB values. The reverse conversion follows similar mathematical principles. Through this color space transformation, we can more precisely adjust image brightness (L channel), contrast, and color balance (A and B channels), making image processing operations more flexible and accurate. The LAB color space's perceptual uniformity allows for color adjustments that better match human visual perception compared to RGB space.

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