how can i perform histogram equalization for logical image

i have divided original image into 3 sub images(class is logical) and i want to perform histogram equalization on sub images.how can i do it,pls anyone help me

Answer 1

[Image Analyst]

That does not make any sense at all. A logical/binary image is already at maximum contrast and does not need histogram equalization. If you did it, it would simply return the same image. Even if you ran histeq() on a gray scale image, that's even useless most of the time, though some people like to do it unnecessarily because they don't know any better. adapthisteq() can be useful to flatten out uneven background illumination, though it doesn't make sense for a logical image.

Answer 2

[Nitin]

There are lots of options for histogram equalization, for example you can read on histeq and adapthisteq