ppmfade

Generate a transition between two PPM images. More information: https://netpbm.sourceforge.net/doc/ppmfade.html.

• Generate a transition between two PPM images ([f]irst and [l]ast) using the specified effect:

ppmfade -f path/to/image1.ppm -l path/to/image2.ppm -mix|spread|shift|relief|oil|…

• Generate a transition starting with the specified image and ending in a solid black image:

ppmfade -f path/to/image.ppm -mix|spread|shift|relief|oil|…

• Generate a transition starting with a solid black image and ending with the specified image:

ppmfade -l path/to/image.ppm -mix|spread|shift|relief|oil|…

• Store the resulting images in files named base.NNNN.ppm where NNNN is a increasing number:

ppmfade -f path/to/image1.ppm -l path/to/image2.ppm -mix|spread|shift|relief|oil|… -base base