WebPython 从findContours中删除某些点,以从fitEllipse中获得更好的结果,python,opencv,curve-fitting,contour,ellipse,Python,Opencv,Curve Fitting,Contour,Ellipse,我想在图片中的一个部分受损的物体上画一个椭圆。(这里的图片只是简单的示例,用于说明! WebJun 15, 2024 · Find and draw the largest contour in opencv on a specific color (Python) Im trying to get the largest contour of a red book. I've got a little problem with the code …
Python 从findContours中删除某些点,以从fitEllipse中获得更好的 …
WebDownload ZIP Apply otsu threshold and detect the largest contour opencv Raw otsu_plus_contour_detection.py def apply_threshold (filtered): """ Apply OTSU threshold Args: filtered: np.array Returns: thresh: np.array """ ret, thresh = cv2.threshold (filtered, 250, 255, cv2.THRESH_OTSU) plt.imshow (cv2.cvtColor (thresh, cv2.COLOR_BGR2RGB)) WebNov 22, 2016 · Here is how I do it in Python: if len (contours) > 0; #find largest contour in mask, use to compute minEnCircle c = max (contours, key = cv2.contourArea) (x,y), radius) = cv2.minEnclosingCircle (c) M = cv2.moments (c) python c++ opencv Share Improve this question Follow edited Nov 22, 2016 at 12:19 Miki 40.6k 13 122 202 buddhist prayer at death
OpenCV Contour Approximation - PyImageSearch
WebDec 3, 2024 · The biggest contour can be found using the max python function, ordering by contour area with the function cv2.contourArea. Other contour properties can be found at Opencv Contours . This biggest contour is filled with the function cv2.fillPoly to create the mask to select the important information of the image. WebAug 2, 2024 · Is opencv + python the proper approach at all? Are there particular tricks to work out to get to the best result? Thanks & Clear Skies, Gert. 推荐答案. You can try this: threshold the image; get the largest contour; find the minimum area circle that encloses this contour; Once you find the center and radius, it'll be easier to register. WebYes, you can sort the contours by their size (perimeter or area, whichever you prefer) in descending order and so contours [0] will be the largest contour, contours [1] 2nd largest and so on. sort(contours.begin(), … buddhist practices bbc