i've 16x16 blocks of the input image and an array of mean values. i want to extract a particular block having same mean value

Question

angel 2013-3-10

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/66549-i-ve-16x16-blocks-of-the-input-image-and-an-array-of-mean-values-i-want-to-extract-a-particular-blo

how can i extract the particular blocks having same mean values from all 256 blocks...

the code i wrote is:

 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(16,16, blockNumber);
    imshow(oneBlock);
                Mean(blockNumber) = mean2(oneBlock);
                caption=sprintf('\n\nThe mean for block #%d = %f', blockNumber, Mean(blockNumber));
                disp(caption);
                blockNumber = blockNumber + 1;

end

   end
disp('sorted mean values are:');
 [S,blockNumber]=sort(Mean);
 fprintf('\nBlock #%d = %f\n', [blockNumber(:), S(:)].' );

i want to make a condition so that only those blocks are shown whose Mean value is same.like block 3 and block 34 have mean value 34.56 then only these blocks are shown. rest other blocks are not shown...

plz modify my above code as per my requirement...

reply as soon as ....

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angel 2013-3-11

编辑：Walter Roberson 2013-3-11

i m working on gray scale image sir

1) this is my original image:

http://imageshack.us/photo/my-images/22/dogyj.jpg/

2) image is divided into 16x16 blocks

http://imageshack.us/photo/my-images/708/blockssn.jpg/

3) i want that those blocks like u said if block 3 and 34 match, 10 and 19 match, and 13 and 42 match, i want that color the pixels of block 3 and 34 with let say red color

color the pixel of block 10 and 19 with different color(baby pink) than red color

color the pixel of block 13 and 42 with different color than baby pink and red and so on...

like in the following image all the blocks are colored with winter color

http://imageshack.us/photo/my-images/255/colorq.jpg/

i want in the image of 16x16 blocks where there is a blocks of same mean value like block 3 and 34 color it with one color(red),block 10 and 19 with different color and so on...rest of the blocks which dont have same mean values remain the same.....

if coloring of blocks is not possible than suggest me some other way to do so..

in my project i want to these blocks visually that the blocks with matching color are duplicated blocks ...

plz reply soon as i've tries alot but unable to do...

also u can run my code with the given original image

angel 2013-3-12