Mean pixel value
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I need to find the mean pixel value ( mean intensity) of the entire image which is a slice obtained from CT. I have trouble when the function regionprops is used since I need to account for the entire image and not only a certain region. Is there any other function that can be used?
Thanks,
回答（2 个）
Walter Roberson
2011-5-9
mean(TheImage(:))
Swapnil Kelkar
2011-5-11
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2 个评论
Ishtiaq Bercha
2011-5-13
I have a similar problem. I am looking at a medical image but I want to discard the black background and look at the image in the display window. I am thinking about using a nested for loop for this purpose. However I am not sure how to determine pixel value of indiviual pixels. Here is what my code so far looks like.
for m = 1:x
for n= 1:256
if z = impixelinfo(m,n) >=1
A(m,n) = z
else continue
end
end
end
However I am getting an error on the line that determines the pixel value.
That is"if z = impixelinfo(m,n) >=1"
I will appreciate some tips.
Thanks
---Ish
Walter Roberson
2011-5-13
Please start a new Question for this issue.
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2011-5-9
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