Image Processing Toolbox

isrgb

Return true for an RGB image

Syntax

• flag = isrgb(A)
  

Description

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

isrgb uses these criteria to determine if 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

label2rgb