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Mean Greyscale Index matrix

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Muhammad Hilmi Azman
回答： Aiswarya 2022-7-6
How do I calculate mean N x M in 2d pictures?
Is it same is I use mean2() function?

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Aiswarya
Aiswarya 2022-7-6
According to my understanding you want to calculate mean of all pixels in the image and it's a greyscale image.
So if your image is given by img you can use the function mean in the manner given below:
meanIntensity = mean(img(:));

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