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Return true for intensity image
Syntax
flag = isgray(A)
Description
flag = isgray(A) returns 1 if A is a grayscale intensity image and 0 otherwise.
isgray uses these criteria to decide if A is an intensity image:
A is of class double, all values must be in the range [0,1], and the number of dimensions of A must be 2.
A is of class uint16 or uint8, the number of dimensions of A must be 2.
Class Support
A can be of class uint8, uint16, or double.
See Also
isbw, isind, isrgb