生成代码，Python车牌识别

答案：我可以给你一段Python代码来实现车牌识别，代码如下： import cv2
import numpy as np # 读取图片
img = cv2.imread("license_plate.jpg") # 灰度处理
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY) # 自适应二值化
thresh = cv2.adaptiveThreshold(gray, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY, 11, 2) # 形态学操作
kernel = np.ones((3, 3), np.uint8)
opening = cv2.morphologyEx(thresh, cv2.MORPH_OPEN, kernel, iterations=2) # 找轮廓
contours = cv2.findContours(opening, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
contours = contours[0] if len(contours) == 2 else contours[1] # 绘制轮廓
for c in contours:
x, y, w, h = cv2.boundingRect(c)
cv2.rectangle(img, (x, y), (x+w, y+h), (0, 255, 0), 2) # 显示结果
cv2.imshow("license plate", img)
cv2.waitKey(0)