Top "Opencv-contour" questions

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DrawContours() not working opencv python

I was working on the example of finding and drawing contours in opencv python. But when I run the code, …

python opencv opencv-contour
opencv - plot contours in an image

I am trying to draw contour around an image. I can see that contours being found but I am not …

python opencv image-processing computer-vision opencv-contour
OpenCV : How to find the pixels inside a contour in c++

Suppose if we are working on an image, is there any way to access the pixels inside the contour? I …

c++ opencv opencv-contour
Fill the outside of contours OpenCV

I am trying to color in black the outside region of a contours using openCV and python language. Here is …

python image python-2.7 opencv opencv-contour
OpenCV shape matching between two similar shapes

I'm trying to match a slightly irregular shape to a database of shapes. For example, here the contour I'm trying …

python opencv image-processing image-recognition opencv-contour
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
How to check if point is placed inside contour?

I have drawn a contour around extreme points. Inside polygon figure I have others points. How to check if they …

python opencv opencv3.0 opencv-contour
Get the average color inside a contour with Open CV

So I decided to get started learning Open CV and Python together! My first project is to detect moving objects …

python opencv opencv-contour
Combine contours vertically and get convex hull - opencv - python

I have character images like this: After getting contours and convexHull the output is like this: For that I used …

python opencv convex-hull opencv-contour
How to crop the biggest object in image with python opencv?

I want to crop the biggest object in the image (Characters). This code only works if there is no line (…

python opencv image-processing cv2 opencv-contour