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dd a note in findcontours doc

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LaurentBerger 2017-01-08 15:24:29 +01:00
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modules/imgproc/include/opencv2/imgproc.hpp
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@ -3744,6 +3744,7 @@ CV_EXPORTS_W int connectedComponentsWithStats(InputArray image, OutputArray labe
The function retrieves contours from the binary image using the algorithm @cite Suzuki85 . The contours
are a useful tool for shape analysis and object detection and recognition. See squares.cpp in the
OpenCV sample directory.
@note Since opencv 3.2 source image is not modified by this function.
@param image Source, an 8-bit single-channel image. Non-zero pixels are treated as 1's. Zero
pixels remain 0's, so the image is treated as binary . You can use cv::compare, cv::inRange, cv::threshold ,