From the last 15 hours, I have contributed in term of comments and answers. But I am neither getting mail for the updates not it is updating in activity feed in my account.
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Yes. The activities are updated after a certain delay. I did not check the mail notifications in the forum, but the notifications from the FileExchange work 1 or 2 times per year for me only.
"The proposed method computes a local activity measure, which is the difference between a pixel luminance and the average of its 3times3 neighborhood pixels' luminance weighted according to the spatial positioning."
I would imagine the weighting factors would be listed in the full paper.
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