Evaluate a descriptor extractor by computing precision/recall curve

recallPrecisionCurve = cv.computeRecallPrecisionCurve(matches1to2, correctMatches1to2Mask)

Input

• matches1to2 Cell array of matches, each match is a structure array with the following fields:
  • queryIdx query descriptor index (zero-based index)
  • trainIdx train descriptor index (zero-based index)
  • imgIdx train image index (zero-based index)
  • distance distance between descriptors (scalar)
• correctMatches1to2Mask Cell array of the same size as matches1to2. A mask indicating correct matches.

Output

• recallPrecisionCurve Recall/precision curve, Nx2 matrix.