How can we crop the height of an image?

I have some images with certain height. I want to crop out some of the lower and upper part of the images. How do i do it?

Answer 1

[KSSV]

If you want to do it manually, use imcrop. If you want to automate....check what are the specific conditions to crop and put in loop.

[deena hijam]

I have done it using imcrop() but that gives me only the left and right part cropped. The upper and lower part is not getting affected. I don't know how to crop it from all four sides or now that i have got the left and right portion done, i want to do it for the top and bottom portion.