双11涉暴视频审核购买

import cv2

def detect_violence(video_path):
    cap = cv2.VideoCapture(video_path)
    violence_detected = False
    
    while cap.isOpened():
        ret, frame = cap.read()
        if not ret:
            break
        
        # 这里可以添加具体的暴力检测算法，例如基于颜色、纹理等的特征提取和分类
        # 示例：简单的暴力检测逻辑（实际应用中需更复杂的算法）
        gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
        _, thresh = cv2.threshold(gray, 127, 255, cv2.THRESH_BINARY)
        contours, _ = cv2.findContours(thresh, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)
        
        if len(contours) > 10:  # 假设暴力场景会有更多的轮廓
            violence_detected = True
            break
    
    cap.release()
    return violence_detected

# 使用示例
video_path = 'path_to_video.mp4'
if detect_violence(video_path):
    print("暴力场景已检测到！")
else:
    print("视频内容正常。")