How to get the mean value of the area around certain coordinates of an image?
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ferran parera
on 27 Apr 2017
Commented: ferran parera
on 2 May 2017
Hi, I am writing a code to analize all the frames of a video. I have already split the video on its frames. To simplify my question lets take a single grey scale image.
I have an image. I have a mesh of points (with their coordinates). The mesh is a regular square mesh. I would like to get the average value in the area around each of these points. And if it is posible to have these mean values in a matrix.
How do you recomend me to do it?
Thank you in advance.
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Accepted Answer
Image Analyst
on 28 Apr 2017
Use imfilter() or conv2():
kernel = ones(31); % center plus 15 to all sides.
averageImage = conv2(grayImage, kernel, 'same');
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