split an image into six equal parts

how we can split an image into six equal parts using a loop and then performing enhancement on each part

[Ameer Hamza]

How do you want to divide the image? Do you want 3 blocks horizontally and 2 blocks vertically or some other arrangement?

[uma]

Any arrangement but all should be equally divided.

Answer 1

[Ameer Hamza]

This code shows one example. However, this will only work if the number of pixels in the image can be evenly divided into blocks

I = imread('pears.png');
blocks = mat2cell(I, size(I,1)/2*ones(1,2), size(I,2)/3*ones(1,3), 3);

count = 1;
for i=1:size(blocks,1)
    for j=1:size(blocks,2)
        subplot(2,3,count)
        imshow(blocks{i,j});
        count = count + 1;
    end
end

[uma]

It does not work.

[Ameer Hamza]

What is the error?

[uma]

[Ameer Hamza]

It seems that the number of pixels in row and column of your images cannot be evenly divided. Is it acceptable if a few pixels are ignored? At maximum, only 1-2 lines of pixels will be deleted.

Answer 2

[Image Analyst]

You can use blockproc(). See attached demos.