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How to work on a non rectangular region for feature matching using SURF or SIFT

asked 2013-06-21 02:37:58 -0500

newbie111 gravatar image

Hi I have an image, I want to do feature matching in only some part of the image. Is there any way to extract that non recatngular part, provided the coordinates, and do the processing on it?

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answered 2013-06-21 03:14:59 -0500

BeS gravatar image

updated 2013-06-21 03:17:22 -0500


Yes, you can use a mask to select the desired region in SURF/SIFT. That is, to create an image of the same size as the original and mark it non-zero values ​​for the pixels that need isoplzovat SIFT / SURF and zero all other pixels.


Best regards, BeS

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You mean the intensity of the pixels? I am working on a grayscale image.

newbie111 gravatar imagenewbie111 ( 2013-06-23 22:07:55 -0500 )edit

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Asked: 2013-06-21 02:37:58 -0500

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Last updated: Jun 21 '13