what will the formula for mean intensity value of RGB image

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Poonam
Poonam el 5 de Jul. de 2015
Respondida: Image Analyst el 5 de Jul. de 2015
gray scale image intensity value is
m=mean2(I)
then what will be of RGB image

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Image Analyst
Image Analyst el 5 de Jul. de 2015
The help says
mean2 computes the mean of an array A using mean(A(:)).
So that pretty much answers your question. It will average everything together regardless of which color plane a value is in. It does not give a weighted mean, like rgb2gray(), nor does it give a 3-element array with means of each color channel separately.

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