Image Manipulation Class question

[eluser]Boris Strahija[/eluser]
The original images wont have the same dimmensions. The thumbs should all be 140x140.
The problem is that the thumb is being cut out on the position 0pxx0px (top/left), but I need it to be in the middle.

I think know the image (800x600) is being resized to 186x140, and the the uper portion is being cut out. I need it to be for this image 23x0.
I can do this manually, but maybe there's an option in the class itself.

I hope it's clearer now