{"id":1083837,"date":"2025-01-08T13:01:51","date_gmt":"2025-01-08T05:01:51","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1083837.html"},"modified":"2025-01-08T13:01:54","modified_gmt":"2025-01-08T05:01:54","slug":"%e5%a6%82%e4%bd%95%e7%94%a8python%e7%a8%8b%e5%ba%8f%e5%a4%84%e7%90%86%e8%a7%86%e9%a2%91%e6%95%99%e7%a8%8b-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1083837.html","title":{"rendered":"\u5982\u4f55\u7528python\u7a0b\u5e8f\u5904\u7406\u89c6\u9891\u6559\u7a0b"},"content":{"rendered":"

\"\u5982\u4f55\u7528python\u7a0b\u5e8f\u5904\u7406\u89c6\u9891\u6559\u7a0b\"<\/p>\n

\u7528Python\u7a0b\u5e8f\u5904\u7406\u89c6\u9891\u6559\u7a0b\u7684\u65b9\u6cd5\u6709\uff1a\u4f7f\u7528OpenCV\u8fdb\u884c\u89c6\u9891\u5904\u7406\u3001\u4f7f\u7528moviepy\u5e93\u8fdb\u884c\u89c6\u9891\u7f16\u8f91\u3001\u4f7f\u7528ffmpeg\u5e93\u8fdb\u884c\u89c6\u9891\u8f6c\u6362\u3002<\/strong>\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u901a\u8fc7\u8fd9\u4e9b\u65b9\u6cd5\u5904\u7406\u89c6\u9891\uff0c\u5e76\u7ed9\u51fa\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u548c\u6ce8\u610f\u4e8b\u9879\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528OpenCV\u8fdb\u884c\u89c6\u9891\u5904\u7406<\/p>\n<\/p>\n

OpenCV\u662f\u4e00\u4e2a\u5f00\u6e90\u8ba1\u7b97\u673a\u89c6\u89c9\u5e93\uff0c\u652f\u6301\u591a\u79cd\u7f16\u7a0b\u8bed\u8a00\uff0c\u5305\u62ecPython\u3002\u5b83\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u5de5\u5177\u6765\u5904\u7406\u56fe\u50cf\u548c\u89c6\u9891\uff0c\u5305\u62ec\u8bfb\u53d6\u3001\u5904\u7406\u548c\u4fdd\u5b58\u89c6\u9891\u3002<\/p>\n<\/p>\n

1. \u5b89\u88c5OpenCV<\/h3>\n<\/p>\n

\u8981\u4f7f\u7528OpenCV\u5904\u7406\u89c6\u9891\uff0c\u9996\u5148\u9700\u8981\u5b89\u88c5OpenCV\u5e93\u3002\u53ef\u4ee5\u4f7f\u7528pip\u547d\u4ee4\u8fdb\u884c\u5b89\u88c5\uff1a<\/p>\n<\/p>\n

pip install opencv-python<\/p>\n
<\/code><\/pre>\n<\/p>\n
2. \u8bfb\u53d6\u89c6\u9891<\/h3>\n<\/p>\n
\u9996\u5148\uff0c\u4f7f\u7528OpenCV\u7684cv2.VideoCapture<\/code>\u51fd\u6570\u6765\u8bfb\u53d6\u89c6\u9891\u6587\u4ef6\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u8bfb\u53d6\u548c\u663e\u793a\u89c6\u9891\u7684\u6bcf\u4e00\u5e27\uff1a<\/p>\n<\/p>\n
import cv2<\/p>\n
cap = cv2.VideoCapture('input_video.mp4')<\/p>\n
while cap.isOpened():<\/p>\n
    ret, frame = cap.read()<\/p>\n
    if not ret:<\/p>\n
        break<\/p>\n
    cv2.imshow('Frame', frame)<\/p>\n
    if cv2.wAI<\/a>tKey(25) & 0xFF == ord('q'):<\/p>\n
        break<\/p>\n
cap.release()<\/p>\n
cv2.destroyAllWindows()<\/p>\n
<\/code><\/pre>\n<\/p>\n
3. \u89c6\u9891\u5904\u7406<\/h3>\n<\/p>\n
\u5728\u8bfb\u53d6\u89c6\u9891\u5e27\u4e4b\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528OpenCV\u63d0\u4f9b\u7684\u5404\u79cd\u56fe\u50cf\u5904\u7406\u51fd\u6570\u5bf9\u89c6\u9891\u8fdb\u884c\u5904\u7406\u3002\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u5c06\u89c6\u9891\u8f6c\u6362\u4e3a\u7070\u5ea6\uff1a<\/p>\n<\/p>\n
import cv2<\/p>\n
cap = cv2.VideoCapture('input_video.mp4')<\/p>\n
while cap.isOpened():<\/p>\n
    ret, frame = cap.read()<\/p>\n
    if not ret:<\/p>\n
        break<\/p>\n
    gray_frame = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)<\/p>\n
    cv2.imshow('Gray Frame', gray_frame)<\/p>\n
    if cv2.waitKey(25) & 0xFF == ord('q'):<\/p>\n
        break<\/p>\n
cap.release()<\/p>\n
cv2.destroyAllWindows()<\/p>\n
<\/code><\/pre>\n<\/p>\n
4. \u4fdd\u5b58\u89c6\u9891<\/h3>\n<\/p>\n
\u5904\u7406\u5b8c\u89c6\u9891\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528cv2.VideoWriter<\/code>\u51fd\u6570\u5c06\u5904\u7406\u540e\u7684\u89c6\u9891\u4fdd\u5b58\u5230\u6587\u4ef6\u4e2d\u3002\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u4fdd\u5b58\u7070\u5ea6\u89c6\u9891\uff1a<\/p>\n<\/p>\n
import cv2<\/p>\n
cap = cv2.VideoCapture('input_video.mp4')<\/p>\n
fourcc = cv2.VideoWriter_fourcc(*'XVID')<\/p>\n
out = cv2.VideoWriter('output_video.avi', fourcc, 20.0, (640, 480), False)<\/p>\n
while cap.isOpened():<\/p>\n
    ret, frame = cap.read()<\/p>\n
    if not ret:<\/p>\n
        break<\/p>\n
    gray_frame = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)<\/p>\n
    out.write(gray_frame)<\/p>\n
    cv2.imshow('Gray Frame', gray_frame)<\/p>\n
    if cv2.waitKey(25) & 0xFF == ord('q'):<\/p>\n
        break<\/p>\n
cap.release()<\/p>\n
out.release()<\/p>\n
cv2.destroyAllWindows()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528moviepy\u5e93\u8fdb\u884c\u89c6\u9891\u7f16\u8f91<\/p>\n<\/p>\n
MoviePy\u662f\u4e00\u4e2a\u7528\u4e8e\u89c6\u9891\u7f16\u8f91\u7684Python\u5e93\uff0c\u652f\u6301\u89c6\u9891\u526a\u8f91\u3001\u97f3\u9891\u5904\u7406\u3001\u7279\u6548\u6dfb\u52a0\u7b49\u529f\u80fd\u3002\u5b83\u57fa\u4e8effmpeg\u5e93\uff0c\u53ef\u4ee5\u5904\u7406\u591a\u79cd\u89c6\u9891\u683c\u5f0f\u3002<\/p>\n<\/p>\n
1. \u5b89\u88c5moviepy<\/h3>\n<\/p>\n
\u4f7f\u7528pip\u547d\u4ee4\u5b89\u88c5moviepy\u5e93\uff1a<\/p>\n<\/p>\n
pip install moviepy<\/p>\n
<\/code><\/pre>\n<\/p>\n
2. \u8bfb\u53d6\u89c6\u9891<\/h3>\n<\/p>\n
\u4f7f\u7528VideoFileClip<\/code>\u7c7b\u8bfb\u53d6\u89c6\u9891\u6587\u4ef6\uff1a<\/p>\n<\/p>\n
from moviepy.editor import VideoFileClip<\/p>\n
clip = VideoFileClip('input_video.mp4')<\/p>\n
<\/code><\/pre>\n<\/p>\n
3. \u89c6\u9891\u526a\u8f91<\/h3>\n<\/p>\n
\u53ef\u4ee5\u4f7f\u7528subclip<\/code>\u65b9\u6cd5\u526a\u8f91\u89c6\u9891\u3002\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u526a\u8f91\u89c6\u9891\u7684\u524d10\u79d2\uff1a<\/p>\n<\/p>\n
from moviepy.editor import VideoFileClip<\/p>\n
clip = VideoFileClip('input_video.mp4')<\/p>\n
sub_clip = clip.subclip(0, 10)<\/p>\n
sub_clip.write_videofile('output_clip.mp4')<\/p>\n
<\/code><\/pre>\n<\/p>\n
4. \u6dfb\u52a0\u7279\u6548<\/h3>\n<\/p>\n
MoviePy\u652f\u6301\u6dfb\u52a0\u591a\u79cd\u7279\u6548\uff0c\u5982\u5b57\u5e55\u3001\u8f6c\u573a\u6548\u679c\u7b49\u3002\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u5411\u89c6\u9891\u6dfb\u52a0\u5b57\u5e55\uff1a<\/p>\n<\/p>\n
from moviepy.editor import VideoFileClip, TextClip, CompositeVideoClip<\/p>\n
clip = VideoFileClip('input_video.mp4')<\/p>\n
txt_clip = TextClip("Hello World", fontsize=70, color='white')<\/p>\n
txt_clip = txt_clip.set_position('center').set_duration(10)<\/p>\n
video = CompositeVideoClip([clip, txt_clip])<\/p>\n
video.write_videofile('output_with_text.mp4')<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528ffmpeg\u5e93\u8fdb\u884c\u89c6\u9891\u8f6c\u6362<\/p>\n<\/p>\n
FFmpeg\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u591a\u5a92\u4f53\u5904\u7406\u5de5\u5177\uff0c\u53ef\u4ee5\u5904\u7406\u97f3\u9891\u3001\u89c6\u9891\u548c\u5176\u4ed6\u591a\u5a92\u4f53\u6587\u4ef6\u3002Python\u53ef\u4ee5\u901a\u8fc7\u8c03\u7528ffmpeg\u547d\u4ee4\u884c\u5de5\u5177\u6765\u8fdb\u884c\u89c6\u9891\u8f6c\u6362\u3002<\/p>\n<\/p>\n
1. \u5b89\u88c5ffmpeg<\/h3>\n<\/p>\n
\u9996\u5148\u9700\u8981\u5b89\u88c5ffmpeg\u5de5\u5177\uff0c\u53ef\u4ee5\u4ece\u5b98\u7f51\u4e0b\u8f7d\u5b89\u88c5\u5305\u5e76\u8fdb\u884c\u5b89\u88c5\u3002\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u68c0\u67e5\u662f\u5426\u5b89\u88c5\u6210\u529f\uff1a<\/p>\n<\/p>\n
ffmpeg -version<\/p>\n
<\/code><\/pre>\n<\/p>\n
2. \u4f7f\u7528ffmpeg\u8fdb\u884c\u89c6\u9891\u8f6c\u6362<\/h3>\n<\/p>\n
\u53ef\u4ee5\u4f7f\u7528Python\u7684subprocess<\/code>\u6a21\u5757\u8c03\u7528ffmpeg\u547d\u4ee4\u884c\u5de5\u5177\u3002\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u5c06\u89c6\u9891\u8f6c\u6362\u4e3a\u4e0d\u540c\u683c\u5f0f\uff1a<\/p>\n<\/p>\n
import subprocess<\/p>\n
input_file = 'input_video.mp4'<\/p>\n
output_file = 'output_video.avi'<\/p>\n
command = ['ffmpeg', '-i', input_file, output_file]<\/p>\n
subprocess.run(command)<\/p>\n
<\/code><\/pre>\n<\/p>\n
3. \u89c6\u9891\u526a\u8f91<\/h3>\n<\/p>\n
\u53ef\u4ee5\u4f7f\u7528ffmpeg\u7684-ss<\/code>\u548c-t<\/code>\u53c2\u6570\u8fdb\u884c\u89c6\u9891\u526a\u8f91\u3002\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u526a\u8f91\u89c6\u9891\u7684\u524d10\u79d2\uff1a<\/p>\n<\/p>\n
import subprocess<\/p>\n
input_file = 'input_video.mp4'<\/p>\n
output_file = 'output_clip.mp4'<\/p>\n
command = ['ffmpeg', '-ss', '00:00:00', '-t', '00:00:10', '-i', input_file, output_file]<\/p>\n
subprocess.run(command)<\/p>\n
<\/code><\/pre>\n<\/p>\n
4. \u6dfb\u52a0\u6c34\u5370<\/h3>\n<\/p>\n
\u53ef\u4ee5\u4f7f\u7528ffmpeg\u7684-i<\/code>\u548c-filter_complex<\/code>\u53c2\u6570\u5411\u89c6\u9891\u6dfb\u52a0\u6c34\u5370\u3002\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u5411\u89c6\u9891\u6dfb\u52a0\u6c34\u5370\u56fe\u50cf\uff1a<\/p>\n<\/p>\n
import subprocess<\/p>\n
input_file = 'input_video.mp4'<\/p>\n
watermark_file = 'watermark.png'<\/p>\n
output_file = 'output_with_watermark.mp4'<\/p>\n
command = [<\/p>\n
    'ffmpeg', '-i', input_file, '-i', watermark_file, '-filter_complex',<\/p>\n
    'overlay=10:10', output_file<\/p>\n
]<\/p>\n
subprocess.run(command)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u603b\u7ed3<\/p>\n<\/p>\n
\u672c\u6587\u8be6\u7ec6\u4ecb\u7ecd\u4e86\u5982\u4f55\u4f7f\u7528Python\u7a0b\u5e8f\u5904\u7406\u89c6\u9891\uff0c\u5305\u62ec\u4f7f\u7528OpenCV\u8fdb\u884c\u89c6\u9891\u5904\u7406\u3001\u4f7f\u7528moviepy\u5e93\u8fdb\u884c\u89c6\u9891\u7f16\u8f91\u3001\u4f7f\u7528ffmpeg\u5e93\u8fdb\u884c\u89c6\u9891\u8f6c\u6362\u3002\u6bcf\u79cd\u65b9\u6cd5\u90fd\u6709\u5176\u72ec\u7279\u7684\u4f18\u70b9\u548c\u9002\u7528\u573a\u666f\uff0c\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u3002\u901a\u8fc7\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5b9e\u73b0\u89c6\u9891\u8bfb\u53d6\u3001\u526a\u8f91\u3001\u7279\u6548\u6dfb\u52a0\u3001\u683c\u5f0f\u8f6c\u6362\u7b49\u529f\u80fd\uff0c\u4ece\u800c\u6ee1\u8db3\u5404\u79cd\u89c6\u9891\u5904\u7406\u9700\u6c42\u3002\u5e0c\u671b\u8fd9\u7bc7\u6587\u7ae0\u5bf9\u60a8\u6709\u6240\u5e2e\u52a9\uff0c\u80fd\u591f\u5e2e\u52a9\u60a8\u66f4\u597d\u5730\u5904\u7406\u89c6\u9891\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u9009\u62e9\u5408\u9002\u7684Python\u5e93\u6765\u5904\u7406\u89c6\u9891\uff1f<\/strong>
\u5728\u5904\u7406\u89c6\u9891\u65f6\uff0c\u6709\u591a\u4e2aPython\u5e93\u53ef\u4ee5\u9009\u62e9\uff0c\u4f8b\u5982OpenCV\u3001MoviePy\u548cimageio\u7b49\u3002OpenCV\u9002\u5408\u8fdb\u884c\u56fe\u50cf\u5904\u7406\u548c\u8ba1\u7b97\u673a\u89c6\u89c9\u4efb\u52a1\uff0cMoviePy\u5219\u66f4\u9002\u5408\u89c6\u9891\u526a\u8f91\u548c\u5408\u6210\u3002\u6839\u636e\u4f60\u7684\u9700\u6c42\uff0c\u53ef\u4ee5\u9009\u62e9\u9002\u5408\u7684\u5e93\u6765\u5b9e\u73b0\u89c6\u9891\u5904\u7406\u7684\u76ee\u6807\u3002<\/p>\n
Python\u7a0b\u5e8f\u5904\u7406\u89c6\u9891\u7684\u57fa\u672c\u6b65\u9aa4\u662f\u4ec0\u4e48\uff1f<\/strong>
\u5904\u7406\u89c6\u9891\u7684\u57fa\u672c\u6b65\u9aa4\u901a\u5e38\u5305\u62ec\u52a0\u8f7d\u89c6\u9891\u6587\u4ef6\u3001\u5bf9\u89c6\u9891\u5e27\u8fdb\u884c\u5904\u7406\u3001\u4fdd\u5b58\u5904\u7406\u540e\u7684\u89c6\u9891\u3002\u52a0\u8f7d\u89c6\u9891\u6587\u4ef6\u540e\uff0c\u53ef\u4ee5\u5bf9\u6bcf\u4e00\u5e27\u8fdb\u884c\u7279\u6548\u5904\u7406\u3001\u526a\u8f91\u6216\u8f6c\u7801\u7b49\u64cd\u4f5c\u3002\u6700\u540e\uff0c\u4f7f\u7528\u5408\u9002\u7684\u65b9\u6cd5\u4fdd\u5b58\u5904\u7406\u540e\u7684\u89c6\u9891\u6587\u4ef6\uff0c\u4ee5\u4fbf\u540e\u7eed\u4f7f\u7528\u3002<\/p>\n
\u5982\u4f55\u5728Python\u4e2d\u5b89\u88c5\u548c\u4f7f\u7528\u89c6\u9891\u5904\u7406\u5e93\uff1f<\/strong>
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