[dwm] Need a small image resize program

Hoi community,

I feel the need for a image resize program that matches the
Unix and suckless philosophy.
Currently I'm using ImageMagick, which is just fine, if it is already
installed. But I was shocked, when I had to install it on a clean
system: I has that many dependencies!
The only thing I wanted was a program to resize images and I had to
install about 80 megabyte!

Does anyone know a small program that can resize JPEG and PNG images?

meillo