[Enhancement ] remove text in special area only?

[killbus]

Describe the issue
Is there possible to remove the text only in a particular area?

If the top-left is the start point, it may look like this:

(width_start_percent, height_start_percent, width_end_percent, height_end_percent)

Maybe the given area is like this, (10, 20, 20, 40)

Version
0.2.5

Arguments
Options you used to run the unstamper.

Expected behavior
A brief description of what you expected to happen.

Original file(s)
Provide original file(s) if possible.