It is a classic computer vision problem: image segmentation. There are open source tools like rembg (https://github.com/danielgatis/rembg https://github.com/dan

It is a classic computer vision problem: image segmentation. There are open source tools like rembg (https://github.com/danielgatis/rembg https://github.com/danielgatis/rembg) which call into pre-trained models. It is also easy to train your own model, I've used code from https://github.com/SkyTNT/anime-segmentation https://github.com/SkyTNT/anime-segmentation with my own data to train an image segmentation model to separate objects with really good results.