In this post I’ll show you how to automatically find a Game Boy screen in an image using nothing but Python and OpenCV. Specifically, we’ll be using the OpenCV contours functionality and the findContours function in the cv2 package. Ready? Here we go. Looking for the source code to thi...
Finding contours is a useful task during image processing. The relevant OpenCV functions are as follows: Find contours in a binary image. voidfindContours(InputOutputArrayimage,OutputArrayOfArrayscontours,OutputArrayhierarchy,intmode,intmethod,Pointoffset=Point()) ...
opencv3报错:in function cv::pointSetBoundingRect function 'cv::pointSetBoundingRect' 真实错误位置: 是因为OpenCV版本不同,cv2 在3.x版本之后就有这个问题。 要把原来的contours=contours...报错:error:OpenCV(4.2.0) C:\projects\opencv-python\opencv\modules\imgproc\src\shapedescr.cpp:784 ...
I have a trouble withfinding extreme pointsin frames. I am detecting all contours, but I want find there one extreme point, which islowestfrom others (southernmost contour). Here is a preview of screen, what I have. And here is a preview of screen,what I want ! For example, lowest po...
http://answers.opencv.org/question/129819/finding-distance-between-two-curves/ 问题: Hello, Im trying to add tangents along the curve in the image below, like the red lines in the second picture. Then I would like to use the tangents to find the the 90 degrees normal li...
Anansi is a computer vision (cv2 and FFmpeg) + OCR (EasyOCR and tesseract) python-based crawler for finding and extracting questions and correct answers from video files of popular TV game shows in the Balkan region. Topics python opencv computer-vision tesseract quiz-game quiz-app ocr-python...
Well, by looking at the blue rectangle question image, if you are familiar with computer vision, the logical thing to do is to try to form a rectangle in this image. And we can do this by trying to find all of the contours (shapes) in this image. As you can expect, there will be...