#!/usr/bin/env python3 import os import sys import time import cv2 # 添加父目录到路径,以便能够导入utils sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__)))) from utils.image_raw import ImageProcessor from utils.decode_arrow import detect_arrow_direction, visualize_arrow_detection class ArrowDetector: def __init__(self, image_processor=None): """ 初始化箭头检测器 参数: image_processor: 可选的ImageProcessor实例,如果不提供则会创建一个新的 """ # 如果提供了图像处理器,则使用它,否则创建新的 if image_processor is not None: self.image_processor = image_processor self.should_destroy = False # 不应该在destroy方法中销毁外部传入的实例 else: self.image_processor = ImageProcessor() self.image_processor.run() self.should_destroy = True # 应该在destroy方法中销毁自己创建的实例 print("箭头检测器已初始化") def get_arrow_direction(self): """ 获取当前图像中箭头的方向 返回: direction: 字符串,"left"表示左箭头,"right"表示右箭头,"unknown"表示无法确定 """ # 获取当前图像 image = self.image_processor.get_current_image() if image is None: print("警告: 无法获取图像") return "unknown" # 检测箭头方向 direction = detect_arrow_direction(image) return direction def visualize_current_detection(self, save_path=None): """ 可视化当前图像的箭头检测过程 参数: save_path: 保存结果图像的路径(可选) """ # 获取当前图像 image = self.image_processor.get_current_image() if image is None: print("警告: 无法获取图像") return # 可视化箭头检测 visualize_arrow_detection(image, save_path) def destroy(self): """ 清理资源 """ if self.should_destroy: self.image_processor.destroy() print("箭头检测器已销毁") def main(): """ 演示箭头检测器的用法 """ try: # 初始化箭头检测器 detector = ArrowDetector() # 等待一段时间,确保图像已经接收 print("等待接收图像...") time.sleep(3) # 持续检测箭头方向 for i in range(10): # 检测10次 direction = detector.get_arrow_direction() print(f"检测到的箭头方向 ({i+1}/10): {direction}") # 可选: 保存第一次检测的可视化结果 if i == 0: detector.visualize_current_detection("arrow_detection_result.jpg") time.sleep(1) # 每秒检测一次 except KeyboardInterrupt: print("\n程序被用户中断") except Exception as e: print(f"发生错误: {e}") finally: # 清理资源 print("正在清理资源...") if 'detector' in locals(): detector.destroy() print("程序已退出") if __name__ == "__main__": main()