使用 OpenCV 函式 circle() 繪製一個圓
在本文中,我們將使用 OpenCV 函式 circle() 在影像上繪製一個圓形。
原影像
演算法
Step 1: Import OpenCV. Step 2: Define the radius of circle. Step 3: Define the center coordinates of the circle. Step 4: Define the color of the circle. Step 5: Define the thickness. Step 6: Pass the above arguments into cv2.circle() along with the image. Step 7: Display the output.
示例程式碼
import cv2 image = cv2.imread('testimage.jpg') radius = 100 center = (350, 175) color = (255,255,0) thickness = 15 image = cv2.circle(image, center, radius, color, thickness) cv2.imshow('Circle', image)
輸出
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