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detecting black dark objects

I want to detect holes in an object for positioning purposes. The holes are neatly spaced, but the position of the robot is only roughly known.
Is it even possible to detect round black objects (the holes) using this smart cam system? If it is possible, I could buy the system and start testing.

If impossible, a naive suggestion may be to invert the image after the auto-gain stage. Is this a possible setting of the system or do I have to modify the firmware for this?

Hello,
Detecting black objects can be surprisingly difficult because a typical scene contains lots of darkish/blackish pixels. Anything that is in shadow will appear darkish/blackish. It may be possible to use shape the filter out the objects you’re interested in. This requires modifying Pixy’s firmware though.

Hope this helps!

Edward