Aleksandar Atanasov c5bbc0353c Added small fix when circles are not detected
I noticed that I missed the fact that `cimg` is used in the second `imshow()` call. Changed the scope of the second function call to be within the if-statement. Otherwise in cases where have not been detected the second `imshow()` will attempt to use `cimg` which will be empty leading to an error.
2016-06-12 12:54:16 +02:00
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