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2014-05-01 08:04:31 -0600 | answered a question | background subtraction with a moving camera I managed to solve my problem, thanks for your reply anyway :) |
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2014-05-01 05:37:27 -0600 | answered a question | Trouble finding a way to differentiate two shapes Problem solved thanks to Steven and his very nice idea! Indeed, he thought about something which is very simple but that I didn't see: algaes are attached to the ground and fishes aren't. Meaning that if we compare the x coordinate of each center of each shapes, we can deduce what's a fish and what's not.
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2014-04-30 08:45:25 -0600 | commented question | Trouble finding a way to differentiate two shapes Actually with water flow, the algae are moving as well. And I use background subtraction + thresholding + findContours + moments + arcLength + other not OpenCV things to get here. So I've already used the movement. And describing how smooth the edge of my objects contours are is what I'm trying to do now. |
2014-04-30 05:56:29 -0600 | commented question | Trouble finding a way to differentiate two shapes I just tried switching the color space but the results are not good. The detection is less precise. Anyway I've got a thresholded image and I'm quite happy with the results I have. The last thing I need to do is removing the remaining noise now and then. Colors ain't help me for that, or I might have misunderstood what you implied. If you had the exact image I put in my question, and were asked to show only the fish, how would you do? |
2014-04-30 05:15:43 -0600 | commented question | Trouble finding a way to differentiate two shapes Colors are not usable since I am in an underwater environment (which means a lot of lighting variations). Working with the inner pixels is cool but once again I'll always have one algae that'll be taken by my algorithm. Basically, every algae are very different from the fishes but I don't know how I could use that in real-time. There's no openCV function that simply says if a shape is smooth or not? |
2014-04-28 04:43:45 -0600 | asked a question | Trouble finding a way to differentiate two shapes Hello,
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2014-04-23 03:40:07 -0600 | answered a question | background subtraction with a moving camera Nobody can help? I mean, if somebody who already has had to do such thing was kind enough to explain to me his method, that would really help! |
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2014-04-11 05:10:56 -0600 | answered a question | background subtraction with a moving camera Hello there, |