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answered 2019-03-12 06:39:24 -0600
did you see this ?
you only can use SIFT or SURF features, if you (re)build the opencv libs with opencv_contrib and cmake -DOPENCV_ENABLE_NONFREE=ON
cmake -DOPENCV_ENABLE_NONFREE=ON
please use stitching_detailled --features=akaze (or orb) in the meantime
stitching_detailled --features=akaze