Is there a java library that can simply compare two pictures?

Question

Java

My task is to make sure that the picture on the VK wall has appeared and it is identical to the one I uploaded.
Please tell me a java library that can simply compare two pictures and, for example, return true if they are identical. I looked in Google, but I found such libraries only in C ++ and Python

Answer 1

If you decide on the forehead, then calculate the hash of each picture and compare.
If you need to find different pixels, then like this