IMAGE PROCESSING-DETECTING RED AND BLUE SPOTS
Show older comments
Hey there ... can anyone help me with detecting red and blue spots in side a hexagon ? i have a hexagon with white background and it has few red and blue small circles inside. i want to get their coordinates and store them in a variable according to XY plane..can anyone help ? thnks in advance !
Answers (1)
Sean de Wolski
on 23 Jun 2011
Set a lower threshold on the red or blue channel and an upper on the other two
blueish_mask = rgb(:,:,3)>(rgb(:,:,1)+20)&rgb(:,:,3)>(rgb(:,:,1)+20);
[y x] = find(blueish_mask)
Categories
Find more on Object Analysis in Help Center and File Exchange
on 23 Jun 2011
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
