The BRISK constructor

obj = cv.BRISK()
obj = cv.BRISK(radiusList, numberList)
obj = cv.BRISK(..., 'OptionName',optionValue, ...)

Input

• radiusList defines the radii (in pixels) where the samples around a keypoint are taken (for keypoint scale 1).
• numberList defines the number of sampling points on the sampling circle. Must be the same size as radiusList.

Options

Options accepted by first variant:

• Threshold FAST/AGAST detection threshold score. default 30
• Octaves detection octaves. Use 0 to do single scale. default 3
• PatternScale apply this scale to the pattern used for sampling the neighbourhood of a keypoint. default 1.0

Options accepted by second variant for a custom pattern:

• Threshold FAST/AGAST detection threshold score. default 20
• Octaves detection octaves. Use 0 to do single scale. default 3
• DMax threshold for the short pairings used for descriptor formation (in pixels for keypoint scale 1). default 5.85
• DMin threshold for the long pairings used for orientation determination (in pixels for keypoint scale 1). default 8.2
• IndexChange index remapping of the bits. default empty vector.