Originally Posted by Dennis Frie
To decode the normal output from MinimOSD, it would require some more advanced picture-analyzing. Someone showed it done here at RCgroups (can't remember what OSD it was made for), but it required a computer or similiar as the analyzing requires quite some CPU-power.
As you don't have full control with the output-pixelson MAX7456 it's not straight forward to hide information in the signal and send data.
OCR was done for RemzibiOSD as far as I remember:
I've tried to make it for cl-osd, but couldn't get reliable recognition mostly because of transparent background:
I think it would be easier to make it as audio output using this:
I mean, it would be best to separate output to screen and output to ground, so you could control what to pass where.