MATLAB Function Reference Volume 1: A - E - Bad Request

contrast
2contrast
Purpose Grayscale colormap for contrast enhancement
Syntax cmap = contrast(X)
cmap = contrast(X,m)
Description The contrast function enhances the contrast of an image. It creates a new gray
colormap, cmap, that has an approximately equal intensity distribution. All
three elements in each row are identical.
2-324
cmap = contrast(X) returns a gray colormap that is the same length as the
current colormap.
cmap = contrast(X,m) returns an m-by-3 gray colormap.
Examples Add contrast to the clown image defined by X.
load clown;
cmap = contrast(X);
image(X);
colormap(cmap);
See Also brighten, colormap, image