I have two images img1 and img2,how to get the matched point in img2 given points in img1

[ddongcui]

I have two images img1 and img2,how to get the matched point in img2 given points in img1. That means I just want to match some specific points in two images，not the full image.

[wyf2020]

I suggest making changes in two places of the code. First, based on the points of img1, we need to filter the coarse matches before this line of code. Then, during the fine matching stage, before this line of code, set all entries of conf_matrix_f (shape: 64,100) and conf_matrix_ff (shape: 64,100) to -1e9 except for the columns where the points of img1 are located, similar to a masking operation here.