Pixel value difference graph for two images

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PRATAP MANDAL
PRATAP MANDAL on 17 Jan 2021
Commented: Laraib Naz on 25 Jan 2021
I want to show the pixel value difference histogram of two images as shown in the above attached file and want to show the outline of the histograms only. I am using histogram(cover,'DisplayStyle','stairs'),
but its showing only solid histogram. Another question, how to use the legent ?
Please help me.

Answers (1)

Matt Gaidica
Matt Gaidica on 17 Jan 2021
First of all, are you asking for an algorithm to get the pixel value difference or do you just want code for the histogram? To get you started, the code below results in the following plot.
a = rand(1,1000);
histogram(a,'DisplayStyle','stairs')
legend('Random Numbers')
  3 Comments
Matt Gaidica
Matt Gaidica on 17 Jan 2021
... and use
hold on
to plot another histogram in the same figure;

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