I have an ASP.NET Core 6 Web API in which I have upload folder inside there are folder names according to id.

Inside that folder, there are images of that ids product, for example upload/25/xyz.jpeg, upload/25/abc.jpeg, like this. Now I want to add an API method; when I pass in an image file as parameter, I want to check inside all the ids folders, and in response I want similar images from all images using library.

My requirement is for example I give cat image in parameter, then all the cats images should be returned, means any object image I pass in, I want similar images from the folders returned.

Here is what I have done, but it does not return accurate results:

enter image description here

enter image description here

If you know any other reverse image processing library or algorithm then let me know.