Open Source Computer Vision Library https://opencv.org/

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opencv/modules/nonfree

History

Vadim Pisarevsky c69312ea0d fixed #2580, #2210. some work on #2025. ... modified SIFT to 1) double image before finding keypoints, 2) use floating-point internally instead of 16-bit integers, 3) set the keypoint response to the abs(interpolated_DoG_value). step 1) increases the number of detected keypoints significantly and together with 2) and 3) it improves some detection benchmarks. On the other hand, the stability of the small keypoints is lower, so the rotation and scale invariance tests now struggle a bit. In 2.5 need to make this feature optional and add some more intelligence to the algorithm. added test that finds a planar object using SIFT.		12 years ago
..
doc	Eliminate discrepancies between signatures in documentation and OpenCV headers	12 years ago
include/opencv2/nonfree	Normalize line endings and whitespace	12 years ago
perf	Added thresholds to some sanity checks	12 years ago
src	fixed #2580, #2210. some work on #2025.	12 years ago
test	fixed #2580, #2210. some work on #2025.	12 years ago
CMakeLists.txt	fixed #2580, #2210. some work on #2025.	12 years ago