sum the matrix 3x3 and looping
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renuka
am 28 Feb. 2014
Bearbeitet: renuka
am 2 Mär. 2014
how to calculate the total of overlap region 3x3 of a matrix and include loop function as it continue to calculate row by row and column by column.
2 Kommentare
the cyclist
am 28 Feb. 2014
Bearbeitet: the cyclist
am 28 Feb. 2014
This is not even close to detailed enough to help you. For starters, what does "overlap region" mean?
Please remember, we only know what you tell us about your problem.
Here is a nice guide to asking good questions here: http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer
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Image Analyst
am 1 Mär. 2014
That can be done very simply with imfilter() or conv2():
outputArray = conv2(double(inputArray), ones(3), 'same');
Every element (pixel) in the output array (image) will be the sum of input elements (pixels) in the sliding window.
7 Kommentare
Image Analyst
am 2 Mär. 2014
Bearbeitet: Image Analyst
am 2 Mär. 2014
x = [1 2 3 4;5 6 7 8;9 10 11 12;13 14 15 16]
theSums = conv2(x, ones(3), 'valid')
Result:
theSums =
54 63
90 99
As you can see, you forgot one sum. Please mark the answer as Accepted if we're done here. Thanks.
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