Python package including tools to remove watermarks or make image backgrounds transparent.
Transparency is achieved by converting everything that is white to transparent (The code could easily be modified to do this based on a different color).
Watermark removal works based on the image being black and white and the watermark being a color, in this case orange. With similar watermarks of different colors the code could be easily adapted.
Both functions can be run on a single file or passed a list of files to loop over.