I am trying to check whether this black circle is exist or not on my images.
My current approach is like that;
Hough Circle detection
Crop the outer roi
count zero pixels
if ( zero pixels >500 ) black hole exist else black hole does not.
I just want to know is this method useful if this algorithm go for real time check ? if not what kind of methods you could suggest me ?
Here is a image with blackhole
Here is a image without a blackhole.