Python实现视频自动打码，不用担心透露隐私了

准备工作 环境咱们还是使用 Python3.8 和 pycharm2021 即可

实现原理 将视频分为音频和画面 画面中出现人脸和目标比对，相应人脸进行打码 处理后的视频添加声音 模块 手动安装一下 cv2 模块 ，pip install opencv-python 安装 安装遇到报错，可以私信我

素材工具 我们需要安装一下 ffmpeg 音视频转码工具

代码解析 导入模块

import cv2  
import face_recognition  # 人脸识别库  99.7%    cmake  dlib  face_recognition
import subprocess

视频转为音频

def video2mp3(file_name):
    """
    :param file_name: 视频文件路径
    :return:
    """
    outfile_name = file_name.split('.')[0] + '.mp3'
    cmd = 'ffmpeg -i ' + file_name + ' -f mp3 ' + outfile_name
    print(cmd)
    subprocess.call(cmd, shell=False)

打码

def mask_video(input_video, output_video, mask_path='mask.jpg'):
    """
    :param input_video: 需打码的视频
    :param output_video: 打码后的视频
    :param mask_path: 打码图片
    :return:
    """

# 读取图片

    mask = cv2.imread(mask_path)

# 读取视频

    cap = cv2.VideoCapture(input_video)

# 视频  fps  width  height

    v_fps = cap.get(5)
    v_width = cap.get(3)
    v_height = cap.get(4)

# 设置写入视频参数  格式MP4
# 画面大小
size = (int(v_width), int(v_height))
fourcc = cv2.VideoWriter_fourcc('m', 'p', '4', 'v')

# 输出视频

out = cv2.VideoWriter(output_video, fourcc, v_fps, size)

# 已知人脸

known_image = face_recognition.load_image_file('tmr.jpg')
biden_encoding = face_recognition.face_encodings(known_image)[0]

cap = cv2.VideoCapture(input_video)

while (cap.isOpened()):
    ret, frame = cap.read()
    if ret:

# 检测人脸
# 人脸区域
        face_locations = face_recognition.face_locations(frame)

        for (top_right_y, top_right_x, left_bottom_y, left_bottom_x) in face_locations:
            print((top_right_y, top_right_x, left_bottom_y, left_bottom_x))
            unknown_image = frame[top_right_y - 50:left_bottom_y + 50, left_bottom_x - 50:top_right_x + 50]
            if face_recognition.face_encodings(unknown_image) != []:
                unknown_encoding = face_recognition.face_encodings(unknown_image)[0]
                # 对比人脸
                results = face_recognition.compare_faces([biden_encoding], unknown_encoding)
                # [True]
                # 贴图
                if results == [True]:
                    mask = cv2.resize(mask, (top_right_x - left_bottom_x, left_bottom_y - top_right_y))
                    frame[top_right_y:left_bottom_y, left_bottom_x:top_right_x] = mask
        out.write(frame)
    else:
        break

音频添加到画面

def video_add_mp3(file_name, mp3_file):
"""
:param file_name: 视频画面文件
:param mp3_file: 视频音频文件
:return:
"""
outfile_name = file_name.split('.')[0] + '-f.mp4'
subprocess.call('ffmpeg -i ' + file_name + ' -i ' + mp3_file + ' -strict -2 -f mp4 ' + outfile_name, shell=False)