Calculate the mean of nonzero pixels and set a threshold

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Gina Carts
Gina Carts 2019-11-4
回答： Ilian 2020-4-8
I previously asked how to calculate the mean of nonzero pixels using my binary mask.
The way I did that was m = mean(volume(mask)).
Now, I would also like to exclude the pixels within the mask with values <0.001.
Can someone help with that?

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回答（1 个）

Ilian
Ilian 2020-4-8
If you just have a threshold, you don't even need to ceate an explicit mask:
m = mean(volume(volume>=0.001)); % average of all values (0.001 or above) in volume

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