％ function [L, a, b] = RGB2Lab(R, G, B)

％ RGB2Lab takes matrices corresponding to Red, Green, and Blue, and

％ transforms them into CIELab. This transform is based on ITU-R

％ Recommendation BT.709 using the D65 white point reference.

％ The error in transforming RGB -> Lab -> RGB is approximately

％ 10^-5. RGB values can be either between 0 and 1 or between 0 and 255.

％ By Mark Ruzon from C code by Yossi Rubner, 23 September 1997.

％ Updated for MATLAB 5 28 January 1998.-％ function [L, a, b] = RGB2Lab(R, G, B)

％ RGB2Lab takes matrices corresponding to Red, Green, and Blue, and

％ transforms them into CIELab.　This transform is based on ITU-R

％ Recommendation　BT.709 using the D65 white point reference.

％ The error in transforming RGB-> Lab-> RGB is approximately

％ 10^-5.　RGB values can be either between 0 and 1 or between 0 and 255.　

％ By Mark Ruzon from C code by Yossi Rubner, 23 September 1997.

％ Updated for MATLAB 5 28 January 1998.