how can I use transparent areas in an image target?
I remember slightly, that there was an recommendation for that in the older guideline for creating target images: e.g. using a black area for that, hence the png have to be in RGB. The alpha channel is not allowed to use.
But I cannot find this statement anymore. Unfortunately, it isn't working very good either.
When I have a black background, my target image is requiring a black background as well, when recognizing it in my app.
Has anyone expecience with transparent areas?
Thank you very much!