I have a checker board patterns with small and big rectangle shapes crossings. I want to detect only these big crossing points not small rectagular crossing using intrest operaters. Is there any option??

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Ranju Shah
Ranju Shah il 1 Dic 2015
Commentato: Image Analyst il 1 Dic 2015

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Image Analyst
Image Analyst il 1 Dic 2015
Try using hough() or houghlines(). What are the "small rectagular crossing"? I don't know if I see any of those. And what are "intrest operaters"?
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Image Analyst
Image Analyst il 1 Dic 2015
I don't know what that is either. I've heard of "salient point detection" like is used in SIFT and SURF. Maybe it's the same thing.
Or maybe this: https://en.wikipedia.org/wiki/Kadir%E2%80%93Brady_saliency_detector
Anyway, you might also be able to use the corner() function in the Image Processing Toolbox.

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