It is called styletransfer.
The objective is to transfer the style from one image to another image, i.e. to create a filter to modify our photos.
It is based on a machine learning technique that allows you to transfer the style from one image to another.
The tutorial is available online
Instagram has more than a billion active users who publish photos and stories. They can choose from a wide range of filters to modify their photos. But they do not have the possibility of creating their filter which corresponds to them. This application would allow these users to choose the basic image which will be chosen as a filter in a fun way.