How can we divide an image into 16 sub images each of size 128x128

While the size of original image is 512x512

[Hassan]

Google it Plz ! :p

Answer 1

[Image Analyst]

See the FAQ: http://matlab.wikia.com/wiki/FAQ#How_do_I_split_an_image_into_non-overlapping_blocks.3F

Answer 2

[Youssef Khmou]

you can select a block as :

 P=(512)/sqrt(16);
 B11=M(1:P,1:P);
 B12=M(1:P,P+1:2*P);
 %...
 B14=M(1:P,3*P+1:4*P);
 %...
 B44=M(3*P+1:4*P,3*P+1:4*P);

[Rida]

I tried it, It seems that image is cropped