calculation of GLCM Mean

i,ve gone through the tutorial

 http://www.fp.ucalgary.ca/mhallbey/glcm_mean.htm

i've divided the image into discrete blocks.i want to calculate the GLCM Mean of every block... can u tell me by writing code of glcm Mean...

   glcm=graycomatrix(input_image);

this i know...

what i dont know is the GLCM Mean.. can anybody tell me the synrtax for it?

Answer 1

[Youssef Khmou]

hi Jassy ,

there is an answer ( to check ...) in previous question, i repost it here anyway for further discussion/correction with other Contributers :

 I=imread('liftingbody.png'); 
 G=graycomatrix(I);

 [m n]=size(G); 
 GLCMl=0  % left hand side  mean
 GLCMr=0; % right  hand side mean
 for x=1:m
    for y=1:n
        GLCMl=GLCMl+x*G(x,y);
        GLCMr=GLCMr+y*G(x,y);  
  end
end

The difference between the two is 111.

[Raman]

thank you sir

[Raman]

 [rows columns]=size(input_image);

 glcml=0;

 glcmr=0;

 glcmL=[];

 glcmR=[];

 blockSizeR = 32;% Rows in block.

 blockSizeC = 32; % Columns in block.

 for row = 1 : blockSizeR : rows
  for col = 1 : blockSizeC : columns
    row1 = row;
    row2 = row1 + blockSizeR - 1;
    row2 = min(rows, row2); 

                col1 = col;
    col2 = col1 + blockSizeC - 1;
    col2 = min(columns, col2);

                oneBlock = grayImage(row1:row2, col1:col2);
                subplot(8,8,blockNumber);
                imshow(oneBlock);
                glcm=graycomatrix(oneBlock);

               for x=1:wholeBlockRows
                  for y=1:wholeBlockCols
                      glcml=glcml+x*glcm(x,y);
                      glcmr=glcmr+y*glcm(x,y);

                      glcmL(blockNumber)=glcml;

                      caption=sprintf('\nGLCM Mean along left of #%d is   %d',blockNumber,glcmL(blockNumber));
                      disp(caption);

                      glcmR(blockNumber)=glcmr;

                      caption1=sprintf('\nGLCM Mean along right of #%d is %d',blockNumber,glcmR(blockNumber));
                      disp(caption1);

                        blockNumber = blockNumber + 1;
                  end
               end

here, i've divided the image into discrete blocks of 8x8. Here m calculating the GLCM MEAN of every block. can u tell me the output(GLCM Mean)it produces is correct or not corresponding to each block..as m not able to identify as it is correct or not.

i'll be very thankful to u

reply soon