Vector re-size

Hi @Nosferican! Thanks for the help.

So basically I have found features in img1 and stored them in a vector of vectors keys_all1 indexed by tt and rr. Now I need to match them with the keypoints in img2 stored in keys_all2 indexed by tt2 and rr2. So I am looping over each of the values of tt, rr, tt2 and rr2 and then comparing the keypoints and storing them in matchings_vec.
Here’s my work till date.

Thanks!