{"id":1162167,"date":"2025-01-13T19:25:14","date_gmt":"2025-01-13T11:25:14","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1162167.html"},"modified":"2025-01-13T19:25:16","modified_gmt":"2025-01-13T11:25:16","slug":"python%e5%a6%82%e4%bd%95%e5%ad%98%e8%a7%86%e9%a2%91%e6%96%87%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1162167.html","title":{"rendered":"python\u5982\u4f55\u5b58\u89c6\u9891\u6587\u4ef6"},"content":{"rendered":"

\"python\u5982\u4f55\u5b58\u89c6\u9891\u6587\u4ef6\"<\/p>\n

Python\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u5b58\u50a8\u89c6\u9891\u6587\u4ef6\uff0c\u4f8b\u5982\u4f7f\u7528OpenCV\u3001MoviePy\u3001imageio\u7b49\u5e93\u3002<\/strong>\u5728\u8fd9\u4e9b\u5e93\u4e2d\uff0cOpenCV<\/strong>\u662f\u6700\u5e38\u7528\u7684\u3002\u5b83\u4e0d\u4ec5\u53ef\u4ee5\u5904\u7406\u89c6\u9891\u6587\u4ef6\uff0c\u8fd8\u53ef\u4ee5\u8fdb\u884c\u56fe\u50cf\u5904\u7406\u548c\u8ba1\u7b97\u673a\u89c6\u89c9\u4efb\u52a1\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528OpenCV\u5e93\u6765\u5b58\u50a8\u89c6\u9891\u6587\u4ef6\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u5b89\u88c5\u76f8\u5173\u5e93<\/h3>\n<\/p>\n

\u5728\u5f00\u59cb\u4e4b\u524d\uff0c\u60a8\u9700\u8981\u786e\u4fdd\u5df2\u7ecf\u5b89\u88c5\u4e86\u5fc5\u8981\u7684Python\u5e93\u3002\u53ef\u4ee5\u4f7f\u7528pip\u6765\u5b89\u88c5\u8fd9\u4e9b\u5e93\uff1a<\/p>\n<\/p>\n

pip install opencv-python<\/p>\n
pip install numpy<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528OpenCV\u5b58\u50a8\u89c6\u9891\u6587\u4ef6<\/h3>\n<\/p>\n
1. \u5bfc\u5165\u5fc5\u8981\u7684\u5e93<\/h4>\n<\/p>\n
\u9996\u5148\uff0c\u5bfc\u5165OpenCV\u548cNumPy\u5e93\uff1a<\/p>\n<\/p>\n
import cv2<\/p>\n
import numpy as np<\/p>\n
<\/code><\/pre>\n<\/p>\n
2. \u8bbe\u7f6e\u89c6\u9891\u6355\u83b7\u8bbe\u5907<\/h4>\n<\/p>\n
\u4f7f\u7528OpenCV\u7684VideoCapture<\/code>\u7c7b\u6765\u6355\u83b7\u89c6\u9891\u8bbe\u5907\uff0c\u4f8b\u5982\u7f51\u7edc\u6444\u50cf\u5934\uff1a<\/p>\n<\/p>\n
cap = cv2.VideoCapture(0)  # 0\u8868\u793a\u7b2c\u4e00\u4e2a\u6444\u50cf\u5934\u8bbe\u5907<\/p>\n
<\/code><\/pre>\n<\/p>\n
3. \u83b7\u53d6\u89c6\u9891\u5c5e\u6027<\/h4>\n<\/p>\n
\u83b7\u53d6\u89c6\u9891\u7684\u5bbd\u5ea6\u3001\u9ad8\u5ea6\u548c\u5e27\u7387\uff0c\u4ee5\u4fbf\u5728\u4fdd\u5b58\u89c6\u9891\u65f6\u4f7f\u7528\u76f8\u540c\u7684\u5c5e\u6027\uff1a<\/p>\n<\/p>\n
width = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))<\/p>\n
height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))<\/p>\n
fps = cap.get(cv2.CAP_PROP_FPS)<\/p>\n
<\/code><\/pre>\n<\/p>\n
4. \u8bbe\u7f6e\u89c6\u9891\u7f16\u89e3\u7801\u5668\u548c\u8f93\u51fa\u6587\u4ef6<\/h4>\n<\/p>\n
\u4f7f\u7528VideoWriter<\/code>\u7c7b\u8bbe\u7f6e\u89c6\u9891\u7f16\u89e3\u7801\u5668\u548c\u8f93\u51fa\u6587\u4ef6\uff1a<\/p>\n<\/p>\n
fourcc = cv2.VideoWriter_fourcc(*'XVID')  # \u4f7f\u7528XVID\u7f16\u7801\u5668<\/p>\n
out = cv2.VideoWriter('output.avi', fourcc, fps, (width, height))<\/p>\n
<\/code><\/pre>\n<\/p>\n
5. \u5faa\u73af\u6355\u83b7\u548c\u5b58\u50a8\u89c6\u9891\u5e27<\/h4>\n<\/p>\n
\u4f7f\u7528\u4e00\u4e2a\u5faa\u73af\u6765\u6355\u83b7\u6bcf\u4e00\u5e27\u5e76\u5c06\u5176\u5199\u5165\u8f93\u51fa\u6587\u4ef6\uff1a<\/p>\n<\/p>\n
while cap.isOpened():<\/p>\n
    ret, frame = cap.read()<\/p>\n
    if not ret:<\/p>\n
        break<\/p>\n
    out.write(frame)<\/p>\n
    cv2.imshow('frame', frame)<\/p>\n
    if cv2.wAI<\/a>tKey(1) & 0xFF == ord('q'):<\/p>\n
        break<\/p>\n
<\/code><\/pre>\n<\/p>\n
6. \u91ca\u653e\u8d44\u6e90<\/h4>\n<\/p>\n
\u5728\u5b8c\u6210\u89c6\u9891\u6355\u83b7\u548c\u5199\u5165\u4e4b\u540e\uff0c\u91ca\u653e\u6240\u6709\u8d44\u6e90\uff1a<\/p>\n<\/p>\n
cap.release()<\/p>\n
out.release()<\/p>\n
cv2.destroyAllWindows()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528MoviePy\u5b58\u50a8\u89c6\u9891\u6587\u4ef6<\/h3>\n<\/p>\n
1. \u5b89\u88c5MoviePy\u5e93<\/h4>\n<\/p>\n
\u9996\u5148\uff0c\u5b89\u88c5MoviePy\u5e93\uff1a<\/p>\n<\/p>\n
pip install moviepy<\/p>\n
<\/code><\/pre>\n<\/p>\n
2. \u5bfc\u5165MoviePy\u5e93<\/h4>\n<\/p>\n
\u5bfc\u5165\u5fc5\u8981\u7684MoviePy\u6a21\u5757\uff1a<\/p>\n<\/p>\n
from moviepy.editor import VideoFileClip, concatenate_videoclips<\/p>\n
<\/code><\/pre>\n<\/p>\n
3. \u8bfb\u53d6\u548c\u4fdd\u5b58\u89c6\u9891\u6587\u4ef6<\/h4>\n<\/p>\n
\u4f7f\u7528MoviePy\u8bfb\u53d6\u548c\u4fdd\u5b58\u89c6\u9891\u6587\u4ef6\uff1a<\/p>\n<\/p>\n
clip = VideoFileClip("input.mp4")<\/p>\n
clip.write_videofile("output.mp4")<\/p>\n
<\/code><\/pre>\n<\/p>\n
4. \u5408\u5e76\u89c6\u9891\u6587\u4ef6<\/h4>\n<\/p>\n
\u5982\u679c\u9700\u8981\u5408\u5e76\u591a\u4e2a\u89c6\u9891\u6587\u4ef6\uff0c\u53ef\u4ee5\u4f7f\u7528concatenate_videoclips<\/code>\u51fd\u6570\uff1a<\/p>\n<\/p>\n
clip1 = VideoFileClip("input1.mp4")<\/p>\n
clip2 = VideoFileClip("input2.mp4")<\/p>\n
final_clip = concatenate_videoclips([clip1, clip2])<\/p>\n
final_clip.write_videofile("output.mp4")<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u56db\u3001\u4f7f\u7528imageio\u5b58\u50a8\u89c6\u9891\u6587\u4ef6<\/h3>\n<\/p>\n
1. \u5b89\u88c5imageio\u5e93<\/h4>\n<\/p>\n
\u5b89\u88c5imageio\u5e93\uff1a<\/p>\n<\/p>\n
pip install imageio<\/p>\n
<\/code><\/pre>\n<\/p>\n
2. \u5bfc\u5165imageio\u5e93<\/h4>\n<\/p>\n
\u5bfc\u5165\u5fc5\u8981\u7684imageio\u6a21\u5757\uff1a<\/p>\n<\/p>\n
import imageio<\/p>\n
<\/code><\/pre>\n<\/p>\n
3. \u8bfb\u53d6\u548c\u4fdd\u5b58\u89c6\u9891\u6587\u4ef6<\/h4>\n<\/p>\n
\u4f7f\u7528imageio\u8bfb\u53d6\u548c\u4fdd\u5b58\u89c6\u9891\u6587\u4ef6\uff1a<\/p>\n<\/p>\n
reader = imageio.get_reader('input.mp4')<\/p>\n
writer = imageio.get_writer('output.mp4', fps=30)<\/p>\n
for frame in reader:<\/p>\n
    writer.append_data(frame)<\/p>\n
writer.close()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e94\u3001\u603b\u7ed3<\/h3>\n<\/p>\n
\u901a\u8fc7\u672c\u6587\uff0c\u60a8\u5b66\u4e60\u4e86\u5982\u4f55\u4f7f\u7528Python\u7684OpenCV\u3001MoviePy\u548cimageio\u5e93\u6765\u5b58\u50a8\u89c6\u9891\u6587\u4ef6\u3002OpenCV<\/strong>\u9002\u7528\u4e8e\u5b9e\u65f6\u89c6\u9891\u6355\u83b7\u548c\u5904\u7406\uff0cMoviePy<\/strong>\u9002\u7528\u4e8e\u89c6\u9891\u7f16\u8f91\u548c\u5904\u7406\uff0cimageio<\/strong>\u5219\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u5355\u7684\u65b9\u5f0f\u6765\u8bfb\u53d6\u548c\u5199\u5165\u89c6\u9891\u6587\u4ef6\u3002\u9009\u62e9\u5408\u9002\u7684\u5e93\u53d6\u51b3\u4e8e\u60a8\u7684\u5177\u4f53\u9700\u6c42\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u7ed3\u5408\u4f7f\u7528\u8fd9\u4e9b\u5e93\u6765\u5b8c\u6210\u590d\u6742\u7684\u89c6\u9891\u5904\u7406\u4efb\u52a1\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Python\u4e2d\u4fdd\u5b58\u89c6\u9891\u6587\u4ef6\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u4fdd\u5b58\u89c6\u9891\u6587\u4ef6\u901a\u5e38\u4f7f\u7528OpenCV<\/code>\u5e93\u6216MoviePy<\/code>\u5e93\u3002\u4f7f\u7528OpenCV<\/code>\u65f6\uff0c\u60a8\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2aVideoWriter<\/code>\u5bf9\u8c61\uff0c\u8bbe\u7f6e\u8f93\u51fa\u6587\u4ef6\u540d\u3001\u7f16\u7801\u683c\u5f0f\u3001\u5e27\u7387\u548c\u5e27\u5927\u5c0f\uff0c\u7136\u540e\u901a\u8fc7\u5faa\u73af\u5c06\u6bcf\u5e27\u56fe\u50cf\u5199\u5165\u89c6\u9891\u6587\u4ef6\u3002\u4f7f\u7528MoviePy<\/code>\u5219\u76f8\u5bf9\u7b80\u5355\uff0c\u60a8\u53ef\u4ee5\u76f4\u63a5\u901a\u8fc7write_videofile<\/code>\u65b9\u6cd5\u5c06\u526a\u8f91\u4fdd\u5b58\u4e3a\u89c6\u9891\u6587\u4ef6\u3002<\/p>\n
\u4fdd\u5b58\u89c6\u9891\u6587\u4ef6\u65f6\u9700\u8981\u8003\u8651\u54ea\u4e9b\u53c2\u6570\uff1f<\/strong>
\u4fdd\u5b58\u89c6\u9891\u6587\u4ef6\u65f6\uff0c\u60a8\u9700\u8981\u8003\u8651\u591a\u4e2a\u53c2\u6570\uff0c\u5305\u62ec\u89c6\u9891\u7684\u7f16\u7801\u683c\u5f0f\uff08\u5982XVID<\/code>\u3001MP4V<\/code>\u7b49\uff09\uff0c\u5e27\u7387\uff08\u598230fps\uff09\uff0c\u5206\u8fa8\u7387\uff08\u5982640×480\uff09\uff0c\u4ee5\u53ca\u8f93\u51fa\u6587\u4ef6\u7684\u683c\u5f0f\uff08\u5982.mp4\u3001.avi\u7b49\uff09\u3002\u786e\u4fdd\u8fd9\u4e9b\u53c2\u6570\u4e0e\u6240\u4f7f\u7528\u7684\u64ad\u653e\u5668\u517c\u5bb9\uff0c\u4ee5\u786e\u4fdd\u89c6\u9891\u80fd\u591f\u6b63\u5e38\u64ad\u653e\u3002<\/p>\n
\u5728Python\u4e2d\u5904\u7406\u89c6\u9891\u6587\u4ef6\u65f6\u6709\u54ea\u4e9b\u5e38\u7528\u5e93\uff1f<\/strong>
\u5728Python\u4e2d\u5904\u7406\u89c6\u9891\u6587\u4ef6\u7684\u5e38\u7528\u5e93\u5305\u62ecOpenCV<\/code>\u3001MoviePy<\/code>\u548cFFmpeg<\/code>\u3002OpenCV<\/code>\u9002\u5408\u8fdb\u884c\u89c6\u9891\u5904\u7406\u4e0e\u8ba1\u7b97\u673a\u89c6\u89c9\u4efb\u52a1\uff0cMoviePy<\/code>\u66f4\u9002\u5408\u89c6\u9891\u7f16\u8f91\u548c\u7279\u6548\u5904\u7406\uff0c\u800cFFmpeg<\/code>\u5219\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u652f\u6301\u51e0\u4e4e\u6240\u6709\u89c6\u9891\u683c\u5f0f\u7684\u8f6c\u6362\u548c\u5904\u7406\u3002\u8fd9\u4e9b\u5e93\u5404\u6709\u7279\u70b9\uff0c\u7528\u6237\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u5de5\u5177\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Python\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u5b58\u50a8\u89c6\u9891\u6587\u4ef6\uff0c\u4f8b\u5982\u4f7f\u7528OpenCV\u3001MoviePy\u3001imageio\u7b49\u5e93\u3002\u5728\u8fd9\u4e9b\u5e93\u4e2d […]","protected":false},"author":3,"featured_media":1162173,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1162167"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=1162167"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1162167\/revisions"}],"predecessor-version":[{"id":1162175,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1162167\/revisions\/1162175"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1162173"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1162167"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1162167"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1162167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}