i want to find x axis and y axis values of an histograms in matlab.

i want to find x axis and y axis values of an histograms in matlab.

[Steven Lord]

Can you provide a little more detail about what you're trying to do?

[sweta arya]

i want to calculate entropy of histogram for that i need to find total number of pixels at given value of x-axis.

[Walter Roberson]

What form is your histogram in? How did you create it?

Answer 1

[Star Strider]

That does not appear to be possible (at least in R2015b). I would use histcounts (or histc) and then do a bar plot.

[sweta arya]

i did this too,but i need to find total no of pixels at particular value of x-axis,so that i can calculate entropy from histogram using programming rather than manually.

Answer 2

[Image Analyst]

If you want the entropy, why not just simply use the entropy function

theEntropy = entropy(grayImage);