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c++ Programming Glossary: contours.sizeOpenCV C++/Obj-C: Advanced square detection http://stackoverflow.com/questions/10533233/opencv-c-obj-c-advanced-square-detection Test contours vector Point approx for size_t i 0 i contours.size i approximate contour with accuracy proportional to the contour..
Calculating convexityDefects using OpenCV 2.4 in c++ http://stackoverflow.com/questions/10620981/calculating-convexitydefects-using-opencv-2-4-in-c object for each contour vector cv vector cv Point hull contours.size for int i 0 i contours.size i convexHull contours i hull i false.. vector cv vector cv Point hull contours.size for int i 0 i contours.size i convexHull contours i hull i false ... Having both the convexHull.. to std vector Vec4i defects vector cv vector cv Point hull contours.size for int i 0 i contours.size i convexHull contours i hull i false..
Calculate the area of an object with OpenCV http://stackoverflow.com/questions/11631533/calculate-the-area-of-an-object-with-opencv function nicely called contourArea for unsigned int i 0 i contours.size i cout # of contour points contours i .size endl for unsigned..
http://stackoverflow.com/questions/12968576/opencv-skin-detection 1 int sizeOfBiggestContour 0 for int i 0 i contours.size i if contours i .size sizeOfBiggestContour sizeOfBiggestContour..
OpenCV C++: Sorting contours by their contourArea http://stackoverflow.com/questions/13495207/opencv-c-sorting-contours-by-their-contourarea grab contours std vector cv Point biggestContour contours contours.size 1 std vector cv Point smallestContour contours 0 share improve..
contour is not equal to contour[i]? http://stackoverflow.com/questions/14582270/contour-is-not-equal-to-contouri Point largest_contours double largest_area 0 for int i 0 i contours.size i double area contourArea contours i if area largest_area largest_area.. vector Point is a set of contours. As you loop from 0 to contours.size you are working out contourArea contours which will be exactly..
Square detection doesn't find squares http://stackoverflow.com/questions/7731742/square-detection-doesnt-find-squares vector Point approx test each contour for size_t i 0 i contours.size i approximate contour with accuracy proportional to the contour..
http://stackoverflow.com/questions/8449378/finding-contours-in-opencv 0 255 0 colors 2 cv Scalar 0 0 255 for size_t idx 0 idx contours.size idx cv drawContours contourImage contours idx colors idx 3 cv..
Using hierarchy in findContours () in OpenCV? http://stackoverflow.com/questions/8461612/using-hierarchy-in-findcontours-in-opencv loop through the contours hierarchy for int i 0 i contours.size i look for hierarchy i 3 1 ie hole boundaries if hierarchy..
OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection http://stackoverflow.com/questions/8667818/opencv-c-obj-c-detecting-a-sheet-of-paper-square-detection std vector cv Point approx for size_t i 0 i contours.size i cv approxPolyDP cv Mat contours i approx arcLength cv Mat.. Test contours vector Point approx for size_t i 0 i contours.size i approximate contour with accuracy proportional to the contour..
http://stackoverflow.com/questions/9074202/opencv-2-centroid Point 0 0 Get the moments vector Moments mu contours.size for int i 0 i contours.size i mu i moments contours i false.. the moments vector Moments mu contours.size for int i 0 i contours.size i mu i moments contours i false Get the mass centers vector.. contours i false Get the mass centers vector Point2f mc contours.size for int i 0 i contours.size i mc i Point2f mu i .m10 mu i .m00..
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