find outlined text in an image and cut the outline text ; with python

edit

Would something like the following work?

Here are the steps for the images below.

1. convert the image to mono with cvtColor

2. use threshold with binary_inverse and a zero threshold value

3. use findContours with list and filter contours by area

From here you can get the remaining contour rectangle and extract/save this roi in the original image to a file.