combining of pixels in matlab

i have split an 256*256 image into 4*4 pixels. Now i want to combine all the 4*4 pixels to form a 256*256 image. I have 16 blocks of 4*4 pixel values. Can anyone please tell me how to do it?? Thanks in advance...

Answer 1

[Image Analyst]

Stitch them together

stitchHorizontally = [image1, image2];
stitchVertically = [image1; image2];

Put in a loop to stitch them all together.

[devaki anjan]

i have kept all the pixel values in the same variable and it is inside a loop only already.

[Image Analyst]

If they're all already in the same variable then there's nothing to do, right? Unless that variable is a cell array or something.