imgPpmCompare--Marks the differences found between two PPM images




imgPpmCompare <base image>

Image Types

base imagePPM format
stdinPPM format
stdoutPBM format


The base image, which must be included, is intended to be the original PPM file without modifications. If there are one or more PPM images in the standard input, each image will be compared pixel by pixel with the base image. If two pixels are equal a white (FALSE) value will be placed in the corresponding pixel of the PBM image. If they are different, a black (TRUE) value will be placed there. All input files must have the same size as the base image.

Treatment of Valid Region

The valid region is unaffected by this computation.

Treatment of Minimum and Maximum Values

Minimum and maximum values are unaffected by this computation.

See Also