Margincrop

Simple way of cropping images by specifying the amount of pixels to be cut away from the image edges.

Of course imcrop exists, but I'm not a fan of using the rectangle syntax.
So why this?
- Fast
- Practical syntax (for me at least)
- Can handle higher dimensions
- Couldn't find anything similar on FEX with expected tags

Crops along the first 2 dimensions, e.g.:

I = imread('peppers.png'); %rgb image
J = margincrop(I,[10 20],[100 100]);
subplot(1,2,1);imshow(I);
subplot(1,2,2);imshow(J);

Feedback is welcome.