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python Programming Glossary: keypoints

Does anyone have any examples of using OpenCV with python for descriptor extraction?

http://stackoverflow.com/questions/10799625/does-anyone-have-any-examples-of-using-opencv-with-python-for-descriptor-extract

SURF surf cv2.DescriptorExtractor_create SURF keypoints fs surf.compute img keypoints # returns empty result sd.detect.. SURF keypoints fs surf.compute img keypoints # returns empty result sd.detect img # segmentation faults Does.. cv2.DescriptorExtractor_create SURF keypoints surfDetector.detect im keypoints descriptors surfDescriptorExtractor.compute..

OpenCV 2.4.1 - computing SURF descriptors in Python

http://stackoverflow.com/questions/10984313/opencv-2-4-1-computing-surf-descriptors-in-python

having trouble getting the descriptors after detecting the keypoints. What's the correct way to call SURF.detect I tried following.. says in the documentation. Python cv2.SURF.detect img mask keypoints繞 Python cv2.SURF.detect img mask descriptors useProvidedKeypoints.. cv2.SURF.detect img mask descriptors useProvidedKeypoints keypoints descriptors How do I pass the keypoints in when making the second..

Compare similarity of images using OpenCV with Python

http://stackoverflow.com/questions/13379909/compare-similarity-of-images-using-opencv-with-python

# Now loading a template image and searching for similar keypoints template cv2.imread modelImage templateg cv2.cvtColor template.. dist int results 0 0 dists 0 0 if dist 0.1 # draw matched keypoints in red color color 0 0 255 else # draw unmatched in blue color..

OpenCV Python and SIFT features

http://stackoverflow.com/questions/6722736/opencv-python-and-sift-features

find help on this special topic. I want to extract SIFT keypoints from an image in python OpenCV. I have recently installed OpenCV..

Converting an OpenCV Image to Black and White

http://stackoverflow.com/questions/7624765/converting-an-opencv-image-to-black-and-white

and use this as a mask for surf.detect in order to ignore keypoints found on the edge of the black mask area. The following Python..

Detecting if an object from one image is in another image with OpenCV

http://stackoverflow.com/questions/7881133/detecting-if-an-object-from-one-image-is-in-another-image-with-opencv

Start with Distinctive image features from scale invariant keypoints by David Lowe and then read the papers on SURF. Also consider..