Histogram of Binary Image

I want to know how to get those histograms in the image attached. When I do the usual imhist(im) it doesn't give them to me like that. Please point me in the right direction so I can figure it out.

Answer 1

[Image Analyst]

imhist(binaryImage) should give it to you. Make sure you didn't overplot something in the axes it put it into. Of course the histogram will have only 2 bars for 0 and 1.

[Malu]

Might sound like a stupid question , but I have a binary pattern image and would like to find the peaks (example : All white image with a black stripe in the middle) : when i say imhist(binarypattern that I have) , it is an empty histogram.

how can I find the peak of that pattern?