ToAst plugin issue

Hi, (@Kudryashev)

I was trying to use ToAst tracking plugin with the suggested image sample.
However, I don’t understand the labels output image. It seems that the label number is black in a black background, so most of the time is not visible. The following example illustrates the original (left) vs the labelled image (right)

Any ideas?
Thank you in advance


Although not solving the issue I created a postprocessing solution.