Artithmetic operations

Arithmetic operations between two images element by element.

Synopsis

ad image0-in image1-in [image-out]
so image0-in image1-in [image-out]
mu image0-in image1-in [image-out]
di image0-in image1-in [image-out]
min image0-in image1-in [image-out]
max image0-in image1-in [image-out]

Description

All of these commands perform an operation between image0-in and image1-in and write result to image-out. If argument image0-in or image1-in is equal to -, the command reads on standard input. If argument image-out is absent, the command writes to standard output.

command description
ad Add two images
so Subtract two images
mu Multiply two images
div Divide two images
min Compute minimum of two images
max Compute maximum of two images

All operation are performed on pixels element by element.

See also

See also Local arithmetic operations.