[Image-SIG] Image processing terminology- - and using PIL

[Tony Cappellini]

I want to write the filename of some images onto the image itself (as
text), so that when i view the image, I will see its filename.

Is this the same as "watermarking" an image? If not, what is the name
terminology used to write text to a digital image?

Whatever the name of this is, what classes/methods should I use in PIL
to do this?

I will be working with jpgs, gifs, and bmps mostly.


thanks