SubtractImg
DESCRIPTION
Computes a pointwise subtraction of two images. If one of the images
has only one channel (black&white) and the other has three channels (RGB),
then the single channel image is promoted to three channel by placing
zeros in the second and third channel.
INPUTS
Port: First Img In
Type: Lattice
Constraints: 1..3-D
first image
Port: Second Img In
Type: Lattice
Constraints: 1..3-D
subtracted image
WIDGETS
OUTPUTS
Port: Img Out
Type: Lattice
Constraints: 1..3-D
subtraction (first - second)
KNOWN PROBLEMS
SEE ALSO
AddImg,
MultImg,
DivImg,
NegImg,
ComplementImg,
PowerImg,
LogImg,
ExpImg.
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© The Numerical Algorithms Group Ltd, Oxford UK. 2000