1 | initial version |
Please write your Question more comprehensivly!! What do you want to know? You have computed descriptors at certain keypoints and now you would like to sort the positions of the keypoints? Why this?
If you would like to index your image dataset than I would follow a bag-of-words approach, i.e. computing one descriptor (from your many descriptors) for each of your images and use these for an image comparison.