isrgb (Image Processing Toolbox User's Guide)

Return true for an RGB image

Note This function is obsolete and may be removed in future versions.

Syntax

Description

flag = isrgb(A) returns 1 if A is an RGB truecolor image and 0 otherwise.

isrgb uses these criteria to determine whether A is an RGB image:

If A is of class double, all values must be in the range [0,1], and A must be m-by-n-by-3.
If A is of class uint16 or uint8, A must be m-by-n-by-3.

Note A four-dimensional array that contains multiple RGB images returns 0, not 1.

Class Support

A can be of class logical, uint8, uint16, or double.

See Also

isbw, isgray, isind

isind lab2double