Table of Contents of Filter/Arithmetic

abs1__ Calculate the absolute value (modulus) of an image.
add__ Add two images.
div__ Divide two images.
invert Invert an image.
max2__ Calculate the maximum of two images pixel by pixel.
min2__ Calculate the minimum of two images pixel by pixel.
mult__ Multiply two images.
scale__ Scale the gray values of an image.
sub__ Subtract two images.


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