ognis1205

#ifndef __LAB_COLORSPACE__
#define __LAB_COLORSPACE__

/*
 * Conversion between RGB and LAB colorspace.
 * Import from flowabs glsl program : https://code.google.com/p/flowabs/source/browse/glsl/?r=f36cbdcf7790a28d90f09e2cf89ec9a64911f138
 */

float3 rgb2xyz( float3 c ) {
    float3 tmp;