OpenCV provides an easy to use a utility function called matchShapes that takes in two images ( or contours ) and finds the distance between them using Hu Moments.

We have seen how to draw a circle on Images with OpenCV, but in the practical application, we might be drawing more than one shape. It also supports model execution for Machine Learning (ML) and Artificial Intelligence (AI). From there, we’ll configure our development environment and review our project. If you think something is missing or wrong in the documentation, please file a bug report.

Several rectangle definitions and rectangle drawing function just show you a various ways to draw the rectangles inside the picture and video. As the rectangle is rotated clockwise the angle value increases towards zero. (center (x, y), (width, height), angle of rotation) = cv2. From there you should have a set of points. A Fundamental Theorem of Moment Invariants opencv minAreaRect，程序员大本营，技术文章内容聚合第一站。 RotatedRect cv:: minAreaRect (InputArray points) Finds a rotated rectangle of the minimum area enclosing the input 2D point set.

ltype specifies the output label image type, an important consideration based on the total number of labels or alternatively the total number of pixels in the source image. Opencv draw minarearect We will create a black image and draw a blue line on it from top-left to bottom-right corners.

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