arcLength 225 modules/features2d/src/blobdetector.cpp double perimeter = arcLength(Mat(contours[contourIdx]), true); arcLength 3451 modules/imgproc/include/opencv2/imgproc.hpp CV_EXPORTS_W double arcLength( InputArray curve, bool closed ); arcLength 166 modules/imgproc/misc/java/test/ImgprocTest.java double arcLength = Imgproc.arcLength(curve, false); arcLength 168 modules/imgproc/misc/java/test/ImgprocTest.java assertEquals(5.656854249, arcLength, 0.000001); arcLength 1083 modules/imgproc/test/test_convhull.cpp result = cv::arcLength(cv::cvarrToMat(points), arcLength 96 samples/cpp/squares.cpp approxPolyDP(Mat(contours[i]), approx, arcLength(Mat(contours[i]), true)*0.02, true); arcLength 90 samples/cpp/tutorial_code/ShapeDescriptors/moments_demo.cpp printf(" * Contour[%d] - Area (M_00) = %.2f - Area OpenCV: %.2f - Length: %.2f \n", (int)i, mu[i].m00, contourArea(contours[i]), arcLength( contours[i], true ) ); arcLength 83 samples/tapi/squares.cpp approxPolyDP(Mat(contours[i]), approx, arcLength(Mat(contours[i]), true)*0.02, true);