使用 OpenCV 在影像上繪製線條
在本程式中,我們將使用 OpenCV 函式 line() 在影像上繪製一條簡單的線。
原始影像
演算法
Step 1: Import cv2. Step 2: Read the image using imread(). Step 3: Get the dimensions of the image using the image.shape method. Step 4: Define starting point of the line. Step 5: Define the end point of the line. Step 6: Define the thickness of the line. Step 7: Draw the line using the cv2.line() function and pass Step 3 to Step 4 as parameters.
示例程式碼
import cv2 image = cv2.imread('testimage.jpg') height, width, channels = image.shape startpoint = (0, 0) endpoint = (height, width) thickness = 9 color = (255, 0, 0) image = cv2.line(image, startpoint, endpoint, color, thickness) cv2.imshow('Line', image)
輸出
解釋
如你所見,影像上繪製了一條藍線。
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