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Fix FLANN_INDEX_KDTREE
, add FLANN_INDEX_LSH
initialisation
Add initialisations to make clear what values actually have to be passed.
Moreover, in accordance with 383559c228/modules/flann/include/opencv2/flann/defines.h (L68)
, I believe `FLANN_INDEX_KDTREE` was being initialised wrongly in the code examples, 1 should be correct, whereas 0 is `FLANN_INDEX_LINEAR`.
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@ -148,11 +148,13 @@ its related parameters etc. First one is IndexParams. For various algorithms, th
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passed is explained in FLANN docs. As a summary, for algorithms like SIFT, SURF etc. you can pass
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following:
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@code{.py}
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FLANN_INDEX_KDTREE = 1
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index_params = dict(algorithm = FLANN_INDEX_KDTREE, trees = 5)
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@endcode
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While using ORB, you can pass the following. The commented values are recommended as per the docs,
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but it didn't provide required results in some cases. Other values worked fine.:
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@code{.py}
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FLANN_INDEX_LSH = 6
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index_params= dict(algorithm = FLANN_INDEX_LSH,
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table_number = 6, # 12
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key_size = 12, # 20
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@ -179,7 +181,7 @@ kp1, des1 = sift.detectAndCompute(img1,None)
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kp2, des2 = sift.detectAndCompute(img2,None)
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# FLANN parameters
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FLANN_INDEX_KDTREE = 0
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FLANN_INDEX_KDTREE = 1
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index_params = dict(algorithm = FLANN_INDEX_KDTREE, trees = 5)
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search_params = dict(checks=50) # or pass empty dictionary
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