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 el 1 de Dic. de 2015
Comentada: Image Analyst el 1 de Dic. de 2015

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Image Analyst
Image Analyst el 1 de Dic. de 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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Thorsten
Thorsten el 1 de Dic. de 2015
He probably refers to "interest point detection" using "interest operators".
Image Analyst
Image Analyst el 1 de Dic. de 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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