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/external/opencv3/doc/py_tutorials/py_imgproc/py_contours/py_contour_features/
Dpy_contour_features.markdown84 in some cases). Here, **cv2.convexHull()** function checks a curve for convexity defects and
86 at-least flat. And if it is bulged inside, it is called convexity defects. For example, check the
88 convexity defects, which are the local maximum deviations of hull from contours.
109 But if you want to find convexity defects, you need to pass returnPoints = False. To understand it,
117 You will see it again when we discuss about convexity defects.
/external/opencv3/modules/imgproc/src/
Drotcalipers.cpp156 double convexity = ax * by - ay * bx; in rotatingCalipers() local
158 if( convexity != 0 ) in rotatingCalipers()
160 orientation = (convexity > 0) ? 1.f : (-1.f); in rotatingCalipers()
Dconvhull.cpp82 _Tp convexity = ay*bx - ax*by; // if >0 then convex angle in Sklansky_() local
84 if( CV_SIGN( convexity ) == sign2 && (ax != 0 || ay != 0) ) in Sklansky_()
/external/opencv3/doc/py_tutorials/py_imgproc/py_contours/
Dpy_table_of_contents_contours.markdown21 to find convexity defects, pointPolygonTest, match different shapes etc.
/external/opencv/cv/src/
Dcvrotcalipers.cpp158 double convexity = ax * by - ay * bx; in icvRotatingCalipers() local
160 if( convexity != 0 ) in icvRotatingCalipers()
162 orientation = (convexity > 0) ? 1.f : (-1.f); in icvRotatingCalipers()
Dcvconvhull.cpp78 int convexity = ay*bx - ax*by;/* if >0 then convex angle */ in icvSklansky_32s() local
80 if( CV_SIGN(convexity) == sign2 && (ax != 0 || ay != 0) ) in icvSklansky_32s()
151 float convexity = ay*bx - ax*by;/* if >0 then convex angle */ in icvSklansky_32f() local
153 if( CV_SIGN( convexity ) == sign2 && (ax != 0 || ay != 0) ) in icvSklansky_32f()
/external/opencv3/doc/py_tutorials/py_imgproc/py_contours/py_contours_more_functions/
Dpy_contours_more_functions.markdown18 hull can be considered as convexity defect.
28 convexity defects.