Use of laplacian image pyramid to blend two images so that it appear to be natural

To use the blending script you have to provide the two images to blend. The script will ask you to draw a mask

python3 blending.py path/to/first/image path/to/second/image

If you already have a mask you can use it providing it as a third argument

python3 blending.py path/to/first/image path/to/second/image path/to/mask