how to sort CORRELATION property of graycoprops?

sorting of correlation values is done. it works well with 2x2 but not working with 16x16 or 8x8.. can u tell me why is it so...

can u tell me how to do it?

 blockSizeR = 128;% Rows in block.
 blockSizeC = 128; % 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(2,2,blockNumber);
                imshow(oneBlock);

                glcm=0;
                glcm=graycomatrix(oneBlock);

                stats=graycoprops(glcm,'correlation');
                fprintf('\ncorrelation values are\n %d',stats);

                caption2 = sprintf('Block #%d\n of %d', blockNumber,blocks);
    title(caption2, 'FontSize', fontSize);
  
                blockNumber = blockNumber + 1;
         end

    end
[sortedStats,blockNumber]=sort([stats.Correlation]);
fprintf('\nblock #%d = %f\n',[blockNumber(:),sortedStats(:)].');

here i m dividing the image into non-overlapping blocks of size 2x2. i m caculating the glcm of each and every block and after that m caculating the correlation of each block..

Answer 1

[Image Analyst]

I think we talked about this before. stats is a structure so you need to fprintf individual structure members. You can't fprintf() the whole structure with a %d.

[angel]

ok sir. i'll try

[angel]

sir the above code work well for block size 2x2 (blockSizeR=128, blockSizeC=128)and shows the result in sorted order according to the correlation values.

like

                     block #4 = 0.828825

                     block #2 = 0.841469

                     block #3 = 0.851310

                     block #1 = 0.926607

but when I change the block size to 8x8 (blockSizeR=32,blockSizeC=32) or 16x16 (blockSizeR=16,blockSizeC=16) it does not work..i.e it show the result of only block 1 rather than showing block 1 through block 64 or 256.... like

                        block #4 = 0.846963

                        block #2 = 0.858790

                        block #3 = 0.866082

                        block #1 = 0.954553

can u tell me what's the problem in it as i m unable to recognize it?

reply soon

[angel]

can u tell me what is the problem in it? it only represents 4 blocks rather than 64 or 256 according to block size