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 | 1 | initial version |  |
The usual one is the Gaussian Blur, because a low-pass filter can reduce the detection of false circles. However, take into account that the Hough Circles function incorporates a Canny edge detector that is applied before the actual detection, so maybe you have to better tweak its threshold parameters.
The full example can be found link text.
| | 2 | No.2 Revision |
The usual one is the Gaussian Blur, because a low-pass filter can reduce the detection of false circles. However, take into account that the Hough Circles function incorporates a Canny edge detector that is applied before the actual detection, so maybe you have to better tweak its threshold parameters.
