Intepretation of image histogram

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Nithya
Nithya il 8 Mar 2014
Commentato: Image Analyst il 8 Mar 2014
I am attaching a figure which shows the histogram of an intensity image(0-1)scale. Can somebody interpret the graph so that i can understand it in a better way. Thankyou. Nithya merin

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Image Analyst
Image Analyst il 8 Mar 2014
Your image values range from 0 to 1. Perhaps you used im2double to scale a floating point image to the range that most MATLAB functions that operate on floating point images like. The bar chart represents the frequency of occurrence of that intensity value. So you have a lot of dark pixels and not as many bright ones.
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Nithya
Nithya il 8 Mar 2014
will this conversion actually affect the analysis badly?
Image Analyst
Image Analyst il 8 Mar 2014
No. Why should it. As long as you know that it's an image in the range 0-1 and do your operations with that in mind, it should be fine.

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