How to divide a grayscale image in two blocks
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Hi,
Please I want to divide a grayscale image into two halves? Then, after dividing it make each half independent, say
A = top half and
B = the bottom half.
So that I can extract features from each half.
I read some similar questions, and get a code as:
n=fix(size(B,1)/2) //B is the grayscale image
C=B(1:n,:,:);
D=B(n+1:end,:,:)
figure,imshow(C)
figure,imshow(D)
It's almost working, but the results are 2 blank images(C and D).
Really need your help asap, thank you all!
1 Comment
Ahmet Cecen
on 10 Aug 2014
There is no reason why the above shouldn't work. I can't suggest anything further without seeing the image. Attach the original image as a .mat file.
Answers (1)
Image Analyst
on 10 Aug 2014
Maybe somehow they got to be floating point. Use
imshow(C, []);
imshow(D, []);
and see if they show up. In general, see the FAQ: http://matlab.wikia.com/wiki/FAQ#How_do_I_split_an_image_into_non-overlapping_blocks.3F
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