| Image Processing Toolbox | |
Convert an intensity image to an indexed image
Syntax
Description
gray2ind scales, then rounds, an intensity image to produce an equivalent indexed image.
[X,map] = gray2ind(I,n) converts the intensity image I to an indexed image X with colormap gray(n). If n is omitted, it defaults to 64.
[X,map] = gray2ind(BW,n)
converts the binary image, BW, to an indexed image, X, with colormap gray(n). If n is omitted, it defaults to 2.
n must be an integer between 1 and 65536.
Class Support
The input image, I, must be a real, nonsparse array of class logical, uint8, uint16, or double. It can have any dimension. The class of the output image, X, is uint8 if the colormap length is less than or equal to 256; otherwise it is uint16.
See Also
| | getsequence | grayslice | |