网站建设备案优化,phpmysql网站开发笔记,杭州做网站比较出名的公司有哪些,外贸建立网站怎么做好久好久没有写博客了#xff0c;最近看见一个很有意思的文章#xff1a;小心你的电脑被窃听#xff0c;就是说在一些公司#xff0c;截图都会存在水印#xff0c;方便溯源#xff0c;然后出于技术的好奇#xff0c;我在github上搜了一下#xff0c;还真有相关的github…好久好久没有写博客了最近看见一个很有意思的文章小心你的电脑被窃听就是说在一些公司截图都会存在水印方便溯源然后出于技术的好奇我在github上搜了一下还真有相关的github项目对图片进行水印增加和提取下面是地址blind_watermark
1.实现对图片的水印提取 pip install blind-watermark
# 嵌入水印 blind_watermark --embed --pwd 1234 examples/pic/ori_img.jpeg watermark text examples/output/embedded.png
# 提取水印 blind_watermark --extract --pwd 1234 --wm_shape 111 examples/output/embedded.png
很简单就是按着命令后走就行但是问题是公司的图片里面隐藏的水印的加密方式我们也不知道啊我提取了一下我的截图出现的就是乱码
2.实现对视频的水印添加和提取
这个没什么就是在上面的基础上对视频进行分帧然后对每帧进行水印的添加然后再加添加了水印的图片合成video还有对每帧进行水印的提取。
import os
from blind_watermark import WaterMark
import cv2
def frames_to_video(frame_folder, output_video_path, frame_rate):frame_paths sorted([os.path.join(frame_folder, f) for f in os.listdir(frame_folder)])first_frame cv2.imread(frame_paths[0])height, width, _ first_frame.shapefourcc cv2.VideoWriter_fourcc(*mp4v)video cv2.VideoWriter(output_video_path, fourcc, frame_rate, (width, height))for frame_path in frame_paths:frame cv2.imread(frame_path)video.write(frame)video.release()def embed_watermark_on_frames(input_folder, output_folder, password_img, password_wm, watermark):bwm WaterMark(password_imgpassword_img, password_wmpassword_wm)bwm.read_wm(watermark, modestr)for frame_path in os.listdir(input_folder):frame_full_path os.path.join(input_folder, frame_path)bwm.read_img(frame_full_path)output_frame_path os.path.join(output_folder, frame_path)bwm.embed(output_frame_path)def video_to_frames(video_path, output_folder):cap cv2.VideoCapture(video_path)frame_count int(cap.get(cv2.CAP_PROP_FRAME_COUNT))frame_rate int(cap.get(cv2.CAP_PROP_FPS))frame_idx 0while cap.isOpened():ret, frame cap.read()if not ret:breakframe_path f{output_folder}/frame_{frame_idx:04d}.pngcv2.imwrite(frame_path, frame)frame_idx 1cap.release()return frame_count, frame_rate
def extract_watermark_from_frames(frame_folder, password_img, password_wm, wm_shape):bwm WaterMark(password_imgpassword_img, password_wmpassword_wm)for frame_path in os.listdir(frame_folder):frame_full_path os.path.join(frame_folder, frame_path)watermark bwm.extract(frame_full_path, wm_shapewm_shape, modestr)print(fWatermark from {frame_path}: {watermark})# 分解视频
video_path test.mp4
output_frames_folder frames
os.makedirs(output_frames_folder, exist_okTrue)
frame_count, frame_rate video_to_frames(video_path, output_frames_folder)# 嵌入水印
watermark secret
password_img 1
password_wm 1
output_watermarked_frames watermarked_frames
os.makedirs(output_watermarked_frames, exist_okTrue)
embed_watermark_on_frames(output_frames_folder, output_watermarked_frames, password_img, password_wm, watermark)# 合成为视频
output_video_path watermarked_video.mp4
frames_to_video(output_watermarked_frames, output_video_path, frame_rate)# 提取水印
extract_watermark_from_frames(output_watermarked_frames, password_img, password_wm, wm_shapelen(watermark))
