可以使用 Python 的 OpenCV 库在 PyCharm 中创建黑色画布，绘制两个长方形，计算长方形面积，并在对应长方形下方和内部分别标注 `big`、`small` 和面积。以下是实现该功能的代码： ```python import cv2 import numpy as np # 创建黑色画布 height, width = 400, 600 black_canvas = np.zeros((height, width, 3), dtype=np.uint8) # 定义两个长方形的位置和大小 rect1 = (50, 50, 150, 100) rect2 = (250, 50, 150, 100) # 画两个长方形 cv2.rectangle(black_canvas, (rect1[0], rect1[1]), (rect1[0] + rect1[2], rect1[1] + rect1[3]), (255, 255, 255), 2) cv2.rectangle(black_canvas, (rect2[0], rect2[1]), (rect2[0] + rect2[2], rect2[1] + rect2[3]), (255, 255, 255), 2) # 计算长方形的面积 area1 = rect1[2] * rect1[3] area2 = rect2[2] * rect2[3] # 字体设置 font = cv2.FONT_HERSHEY_SIMPLEX font_scale = 1 thickness = 2 # 在长方形内部写文字和面积 text_org1 = (rect1[0] + 10, rect1[1] + rect1[3] - 10) text_org2 = (rect2[0] + 10, rect2[1] + rect2[3] - 10) cv2.putText(black_canvas, f'big\nArea: {area1}', text_org1, font, font_scale, (255, 255, 255), thickness) cv2.putText(black_canvas, f'small\nArea: {area2}', text_org2, font, font_scale, (255, 255, 255), thickness) # 在长方形下方写文字和面积 text_below_org1 = (rect1[0] + 10, rect1[1] + rect1[3] + 30) text_below_org2 = (rect2[0] + 10, rect2[1] + rect2[3] + 30) cv2.putText(black_canvas, f'big\nArea: {area1}', text_below_org1, font, font_scale, (255, 255, 255), thickness) cv2.putText(black_canvas, f'small\nArea: {area2}', text_below_org2, font, font_scale, (255, 255, 255), thickness) # 显示和保存处理后的图片 cv2.imshow('Image with rectangles and text', black_canvas) cv2.imwrite('output_image.jpg', black_canvas) cv2.waitKey(0) cv2.destroyAllWindows() ``` ###