How to select a range of pixels in a historgram?

If we have picture files and look at the histogram of the black to white scale, what code do I input. Let's say it goes from 2*10^-4 to 6*10^-4, what if I want to just see the pixels maybe, from 3*10^-4 and up? Thanks

Answer 1

[Mudambi Srivatsa]

You can use MATLAB Image Processing Toolbox function 'imhist' to create the histogram of black to white scale of your images. Refer to the following link for more information:

https://www.mathworks.com/help/images/ref/imhist.html

However, there is no pixel level range control except for the bin count.