Top "Opencv-drawcontour" questions

Function in OpenCV that enables drawing contours already found previously in a given image.

How to detect and draw contours using OpenCV in Python?

I wrote the following code to detect and draw contours: img = cv2.imread('test2.tif'); if not img is None: …

python opencv image-processing opencv-contour opencv-drawcontour
Python OpenCV draw contour only on the outside border

When drawing a contour using OpenCV's drawContours the borders is drawn centered to the contour, I want to draw the …

python opencv opencv-drawcontour
OpenCV 3.0.0 MSER Binary Mask

I am trying to use MSER algorithm in OpenCV 3.0.0 beta to extract text regions from an image. At the end …

c++ opencv matlab-cvst mser opencv-drawcontour
OpenCV error: (-215) npoints > 0 in function cv::drawContours

Here is the entire code i wrote to have a hand detection but unfortunately I'm stuck as the convexHull output …

python opencv numpy image-processing opencv-drawcontour