[lug] transparent images

[Tom Tromey]

>>>>> "Ken" == Ken Weinert <kenw at ihs.com> writes:

Ken> Can anyone direct me to a place where I can try to sort out how
Ken> to make an already existing image have a transparent background?

Ken> The image background is white, and at the moment it's in png format.

I usually use the pbmplus utilities to do transformations like this.
For instance, look at `man pnmtopng'.

Tom