How to obtain value from histogram?

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nurul hafizah
nurul hafizah 2015-5-4
评论： Star Strider 2015-5-5
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??

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Star Strider
Star Strider 2015-5-4
You only need to ask imhist to output those data:
[counts,binLocations] = imhist(I)
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nurul hafizah
nurul hafizah 2015-5-5
do you know how to calculate mean using counts value?
Star Strider
Star Strider 2015-5-5
You need both ‘counts’ and ‘binLocations’:
image_mean = sum(counts.*binLocations)/sum(counts);

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