[FR] Exclusion zones for edge detection in calibration GUI

[Jason Cipriani]

I'd like to request the ability to define a zone (or zones) of the input images that will be excluded from edge detection in the lens calibration GUI.

Use case for me is processing images from security cameras that have two significant edge noise sources:

- An overlaid black bar with date/time info, which creates a strong straight horizontal edge
- A number of objects that are themselves not straight but which are misdetected as straight edges (for example, a vehicle with a slightly curved profile and high contrast against the background)

It is possible to edit these false positives out by blurring / adjusting contrast in an external image editor and achieve good results after a bit of trial and error, but it would save a lot of steps if I could instead just exclude areas directly.

Thank you!

[tmodes (tmodes)]

You can already enable or disable individual lines. So you can easily disable individual lines an I don't see the need for such an additional feature.

[Jason Cipriani (jason-cipriani)]

I had no idea this was possible! I even read the docs (but I see it in there now).

Amazing!! Thank you. No need for this feature at all then (and no need for me to edit images either).

Fantastic.