图片坐标和数组坐标是相反的,坐标原点位于左上角 import numpy as np import cv2 height, width = 150, 200 img = np.zeros((height, width, 3), np.uint8) img[:, :] = [255, 255, 255] # Pixel position to draw at row, col = 20, 100 # Draw a square with position 20, 100 as the top le