How to colorize a range of pixel values in a grayscale image?

Hello everyone. I have a grayscale image of 112*112. I want to specify every pixel value in this image from 0 to 256, with zero being black and 256 being white, and the middle pixel values either lesser dark or lesser white. I am using imacesc funciton for this purpose but it is graying out the whole image.

Can someone tell me how can I assign certain pixel values to certain colors in this image so that I can explain what's happening inside it more clearly in my project. Thanks.

[Rik]

Since you posted a new question, I presume my answer didn't work for you?

Answer 1

[Rik]

You can either adjust the colormap, or use imshow. If your image is not uint8, you will have to scale it down to [0,1] to make sure imshow will correctly scale your image.