How to obtain value from histogram?

I am using imhist to create histogram from an image. Now I want to know the value of each bar from Y-axis in the histogram. Can I know how to do that??

Answer 1

[Star Strider]

You only need to ask imhist to output those data:

[counts,binLocations] = imhist(I)

[nurul hafizah]

Thank you for your helps.

[Star Strider]

My pleasure.

[nurul hafizah]

do you know how to calculate mean using counts value?

[Star Strider]

You need both ‘counts’ and ‘binLocations’:

image_mean = sum(counts.*binLocations)/sum(counts);