From: kevin.voet@gmail.com   
      
   We're a small team in the process of implementing a face detector/   
   identifier in hardware with the emphasis on speed. For our algorithm   
   development we're using the MATLAB r2008a version which we will later   
   convert to HDL (FPGA based implementation) or C code (uC).   
      
   As for the algorithm, I'm trying to design a cascaded detector which   
   in a first stage will detect the skin in an image/frame. Since the   
   emphasis is on speed I'm trying to code the Crowley/Coutaz algorithm   
   in MATLAB.   
      
   I'm a bit at a loss at this point, I've calculated the luminance   
   matrix of the image as follows:   
      
       for x = 1:size(image,1) %Rows   
           parfor ( y = 1:size(image,2) ) %Columns   
               luminance(x,y) = R(x,y) + G(x,y) + B(x,y);   
           end   
       end   
      
   And now I'm trying to convert the image R G B matrix into an rg matrix   
   of normalizer colour.   
      
   Any help would be appreciated.   
      
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