CONTORT is a fun program for distorting and merging parts of pictures to produce surreal effects.
MERGE is a simple graphic utility for overlaying two images or text in any relative position prior to saving to a file. You can merge the two images in different ways as well as smooth blending in of just part of an image to the final result. There i
XBlend uses an intelligent method to vary the way images are blended based on the subject matter