Interpolate black and white photos

[cybberle]

Dear owang,
When I use your program to interpolate black and white photos, the program may encounter a bug. How can I solve this problem?
Looking forward to your reply very much.

[owang]

Easiest thing to do is just upconvert your grayscale images to rgb by replicating the channels before running the script. otherwise you probably need to change a couple of indices to make it work with single channel images.