test

       image1 = image(1:80,1:100,:);
       image2 = image(1:80,100:200,:);
       image3 = image(1:80,200:300,:);
  image4 = image(1:80,300:400,:);
 
       image5 = image(80:160,1:100,:);
       image6 = image(80:160,100:200,:);
       image7 = image(80:160,200:300,:);
  image8 = image(80:160,300:400,:);
 
       image9 = image(160:240,1:100,:);
       image10 = image(160:240,100:200,:);
       image11 = image(160:240,200:300,:);
  image12 = image(160:240,300:400,:);
 
  image13 = image(240:320,1:100,:);
       image14 = image(240:320,100:200,:);
       image15 = image(240:320,200:300,:);
  image16 = image(240:320,300:400,:);
 
  %320x400

       descriptorsCN1 = extractColorNamingHist(image1,y,w2c)';
       descriptorsCN2 = extractColorNamingHist(image2,y,w2c)';
       descriptorsCN3 = extractColorNamingHist(image3,y,w2c)';
       descriptorsCN4 = extractColorNamingHist(image4,y,w2c)';
       descriptorsCN5 = extractColorNamingHist(image5,y,w2c)';
 
  descriptorsCN6 = extractColorNamingHist(image6,y,w2c)';
  descriptorsCN7 = extractColorNamingHist(image7,y,w2c)';
  descriptorsCN8 = extractColorNamingHist(image8,y,w2c)';
       descriptorsCN9 = extractColorNamingHist(image9,y,w2c)';
 
  descriptorsCN10 = extractColorNamingHist(image10,y,w2c)';
  descriptorsCN11 = extractColorNamingHist(image11,y,w2c)';
  descriptorsCN12 = extractColorNamingHist(image12,y,w2c)';
       descriptorsCN13 = extractColorNamingHist(image13,y,w2c)';
 
  descriptorsCN14 = extractColorNamingHist(image14,y,w2c)';
       descriptorsCN15 = extractColorNamingHist(image15,y,w2c)';
       descriptorsCN16 = extractColorNamingHist(image16,y,w2c)';    
 
       descriptorsCN = [descriptorsCN1 descriptorsCN2 descriptorsCN3 descriptorsCN4 descriptorsCN5 descriptorsCN6 descriptorsCN7 descriptorsCN8 descriptorsCN9 descriptorsCN10 descriptorsCN11 descriptorsCN12 descriptorsCN13 descriptorsCN14 descriptorsCN15 descriptorsCN16];
       descriptorsAllCN(j,:) = descriptorsCN;