I am new to openmv. I am using openmv for below application which i need to detect the waterline in the picture.
could anyone tell me how i can do that? Thanks in advance.
- the background may change all the time
- and the water in tube is increasing,
- i need to send out the signal(e.g. pull down some IO) when the openmv detect the waterline reach some point.
- sometimes, foam exist in the tube if the water is not clean, and how can i detect the waterline in this case.