adobe photoshop - How do I transform images to specific image dimensions without distortion?

I need to resize images to given width/length, but when I do this in photoshop my images come out warped looking. What should I do?

Answer

Simple answer is you don't.

You can not change the width and height of an image by transformation without warping the image unless you transform proportionally. If you need images which are not proportional to the original, the best solution is to crop the images.

If you wish to change the size of an image in a non-proportional manner without warping it, you must crop the image, not transform it.