帮我设计代码，从RGB图像提取绿色通道，实现下面代码import cv2 import numpy as np import os def convert_images(input_folder, output_folder): # 创建保存掩模图像的文件夹 os.makedirs(output_folder, exist_ok=True) # 获取文件夹中的所有tif图像文件 image_files = [f for f in os.listdir(input_fol

der) if f.endswith('.tif')] for image_file in image_files: # 读取图像 image = cv2.imread(os.path.join(input_folder, image_file)) # 提取绿色通道 green_channel = image[:,:,1] # 创建掩模图像，只保留绿色通道 mask = np.zeros_like(image) mask[:,:,1] = green_channel # 保存掩模图像 cv2.imwrite(os.path.join(output_folder, image_file), mask) # 测试代码 input_folder = 'input_images' output_folder = 'output_images' convert_images(input_folder, output_folder)