Multi-channel mathematical and logical functions

BANDRATIO
Compute the ratio of one band to weighted sum of bands (B)
FACTOR
Create linear combinations of spectral channels (B)
HIS
Convert 3-band image between HIS and RGB representations (B)
IMGCMP
Compare two images pixel by pixel (B)
IPMATH
Compile statistics for each pixel of multi-band image (B)
MATH
Perform mathematical and logical operations on two images (B)
MATH2
Perform mathematical operations on two or more image bands, including sum, average, ratio, and max/min, with masking (B/P)
MATRIX
Multiply n-band input by m x n matrix to get m-band output (B)
MULTIPLY
Compute the pixel-by-pixel product of up to ten images (B)
NORMD
Compute normalized difference for one or more band pairs (B)
OVERLAY
Create output image based on logical relation(s) between greylevel ranges of corresponding pixels of input images (B)
RGB2CMYK
Convert RGB input image to CMYK output (B)
TASSELCP
Use tasselcap transform to get brightness, greenness, and wetness bands (B)
TRIG
Compute arcsin, arccos, or arctan for one or two images (B)

Last change: 30 May 2007, R. A. White / raw@essc.psu.edu