{"id":1070158,"date":"2025-01-08T10:55:36","date_gmt":"2025-01-08T02:55:36","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1070158.html"},"modified":"2025-01-08T10:55:39","modified_gmt":"2025-01-08T02:55:39","slug":"python%e5%a6%82%e4%bd%95%e7%94%a8%e6%91%84%e5%83%8f%e5%a4%b4%e6%8b%8d%e7%85%a7%e4%bf%9d%e5%ad%98-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1070158.html","title":{"rendered":"python\u5982\u4f55\u7528\u6444\u50cf\u5934\u62cd\u7167\u4fdd\u5b58"},"content":{"rendered":"

\"python\u5982\u4f55\u7528\u6444\u50cf\u5934\u62cd\u7167\u4fdd\u5b58\"<\/p>\n

\u4e00\u3001Python\u5982\u4f55\u7528\u6444\u50cf\u5934\u62cd\u7167\u4fdd\u5b58<\/p>\n<\/p>\n

\u4f7f\u7528OpenCV\u5e93\u3001\u4f7f\u7528PiCamera\u5e93\u3001\u9009\u62e9\u4fdd\u5b58\u8def\u5f84\u548c\u6587\u4ef6\u540d\u3001\u56fe\u50cf\u683c\u5f0f\u8f6c\u6362\u548c\u4fdd\u5b58\u3001\u8bbe\u7f6e\u62cd\u7167\u53c2\u6570\u548c\u8c03\u6574\u56fe\u50cf\u8d28\u91cf<\/strong>\u3002\u5728Python\u4e2d\u4f7f\u7528\u6444\u50cf\u5934\u62cd\u7167\u5e76\u4fdd\u5b58\u56fe\u50cf\uff0c\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u5b9e\u73b0\uff0c\u5176\u4e2d\u6700\u5e38\u7528\u7684\u65b9\u5f0f\u662f\u4f7f\u7528OpenCV\u5e93\u3002OpenCV\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u8ba1\u7b97\u673a\u89c6\u89c9\u5e93\uff0c\u652f\u6301\u591a\u79cd\u7f16\u7a0b\u8bed\u8a00\uff0c\u5305\u62ecPython\u3002\u901a\u8fc7OpenCV\uff0c\u60a8\u53ef\u4ee5\u8f7b\u677e\u5730\u6355\u83b7\u56fe\u50cf\u3001\u8fdb\u884c\u56fe\u50cf\u5904\u7406\u548c\u4fdd\u5b58\u56fe\u50cf\u6587\u4ef6\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u8bb2\u89e3\u5982\u4f55\u4f7f\u7528OpenCV\u5e93\u8fdb\u884c\u6444\u50cf\u5934\u62cd\u7167\u548c\u4fdd\u5b58\u56fe\u50cf\u7684\u65b9\u6cd5\u3002<\/p>\n<\/p>\n

\u4f7f\u7528OpenCV\u5e93<\/h3>\n<\/p>\n

OpenCV\uff08Open Source Computer Vision Library\uff09\u662f\u4e00\u4e2a\u5f00\u6e90\u8ba1\u7b97\u673a\u89c6\u89c9\u548c\u673a\u5668\u5b66\u4e60<\/a>\u8f6f\u4ef6\u5e93\u3002\u5b83\u5305\u542b\u4e86\u6570\u767e\u4e2a\u8ba1\u7b97\u673a\u89c6\u89c9\u7b97\u6cd5\uff0c\u53ef\u4ee5\u7528\u4e8e\u56fe\u50cf\u5904\u7406\u3001\u89c6\u9891\u6355\u83b7\u548c\u5206\u6790\u7b49\u4efb\u52a1\u3002\u8981\u4f7f\u7528OpenCV\u5e93\u62cd\u7167\u5e76\u4fdd\u5b58\u56fe\u50cf\uff0c\u9700\u8981\u5148\u5b89\u88c5OpenCV\u5e93\uff1a<\/p>\n<\/p>\n

pip install opencv-python<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u8fdb\u884c\u6444\u50cf\u5934\u62cd\u7167\u548c\u4fdd\u5b58\u56fe\u50cf\uff1a<\/p>\n<\/p>\n
import cv2<\/p>\n
\u6253\u5f00\u6444\u50cf\u5934<\/strong><\/h2>\n
cap = cv2.VideoCapture(0)<\/p>\n
\u68c0\u67e5\u6444\u50cf\u5934\u662f\u5426\u6210\u529f\u6253\u5f00<\/strong><\/h2>\n
if not cap.isOpened():<\/p>\n
    print("\u65e0\u6cd5\u6253\u5f00\u6444\u50cf\u5934")<\/p>\n
    exit()<\/p>\n
\u8bfb\u53d6\u4e00\u5e27\u56fe\u50cf<\/strong><\/h2>\n
ret, frame = cap.read()<\/p>\n
\u68c0\u67e5\u662f\u5426\u6210\u529f\u8bfb\u53d6\u56fe\u50cf<\/strong><\/h2>\n
if not ret:<\/p>\n
    print("\u65e0\u6cd5\u8bfb\u53d6\u56fe\u50cf")<\/p>\n
    exit()<\/p>\n
\u4fdd\u5b58\u56fe\u50cf<\/strong><\/h2>\n
cv2.imwrite('captured_image.jpg', frame)<\/p>\n
\u91ca\u653e\u6444\u50cf\u5934<\/strong><\/h2>\n
cap.release()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u9009\u62e9\u4fdd\u5b58\u8def\u5f84\u548c\u6587\u4ef6\u540d<\/h3>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4ee3\u7801\u4e2d\uff0c\u56fe\u50cf\u88ab\u4fdd\u5b58\u4e3a\u5f53\u524d\u5de5\u4f5c\u76ee\u5f55\u4e0b\u7684captured_image.jpg<\/code>\u6587\u4ef6\u3002\u53ef\u4ee5\u6839\u636e\u9700\u8981\u66f4\u6539\u4fdd\u5b58\u8def\u5f84\u548c\u6587\u4ef6\u540d\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
cv2.imwrite('\/path\/to\/save\/captured_image.jpg', frame)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u786e\u4fdd\u6307\u5b9a\u7684\u8def\u5f84\u662f\u6709\u6548\u7684\uff0c\u5e76\u4e14\u5177\u6709\u5199\u5165\u6743\u9650\u3002<\/p>\n<\/p>\n
\u56fe\u50cf\u683c\u5f0f\u8f6c\u6362\u548c\u4fdd\u5b58<\/h3>\n<\/p>\n
OpenCV\u652f\u6301\u591a\u79cd\u56fe\u50cf\u683c\u5f0f\uff0c\u5982JPEG\u3001PNG\u3001BMP\u7b49\u3002\u5728\u4fdd\u5b58\u56fe\u50cf\u65f6\uff0c\u53ef\u4ee5\u6839\u636e\u9700\u8981\u9009\u62e9\u4e0d\u540c\u7684\u683c\u5f0f\u3002\u4f8b\u5982\uff0c\u4fdd\u5b58\u4e3aPNG\u683c\u5f0f\uff1a<\/p>\n<\/p>\n
cv2.imwrite('captured_image.png', frame)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8bbe\u7f6e\u62cd\u7167\u53c2\u6570\u548c\u8c03\u6574\u56fe\u50cf\u8d28\u91cf<\/h3>\n<\/p>\n
\u53ef\u4ee5\u901a\u8fc7\u8c03\u6574\u6444\u50cf\u5934\u7684\u53c2\u6570\u6765\u63a7\u5236\u62cd\u7167\u6548\u679c\u3002\u4f8b\u5982\uff0c\u8c03\u6574\u5206\u8fa8\u7387\uff1a<\/p>\n<\/p>\n
cap.set(cv2.CAP_PROP_FRAME_WIDTH, 1280)<\/p>\n
cap.set(cv2.CAP_PROP_FRAME_HEIGHT, 720)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd8\u53ef\u4ee5\u8c03\u6574\u56fe\u50cf\u7684\u8d28\u91cf\u3002\u5728\u4fdd\u5b58JPEG\u683c\u5f0f\u56fe\u50cf\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u538b\u7f29\u8d28\u91cf\u53c2\u6570\uff1a<\/p>\n<\/p>\n
cv2.imwrite('captured_image.jpg', frame, [int(cv2.IMWRITE_JPEG_QUALITY), 90])<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528PiCamera\u5e93<\/h3>\n<\/p>\n
\u5982\u679c\u60a8\u4f7f\u7528\u7684\u662fRaspberry Pi\uff0c\u5e76\u4e14\u6444\u50cf\u5934\u6a21\u5757\u662fRaspberry Pi Camera Module\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528PiCamera\u5e93\u8fdb\u884c\u62cd\u7167\u3002\u9996\u5148\u5b89\u88c5PiCamera\u5e93\uff1a<\/p>\n<\/p>\n
pip install picamera<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u7136\u540e\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u8fdb\u884c\u62cd\u7167\u548c\u4fdd\u5b58\u56fe\u50cf\uff1a<\/p>\n<\/p>\n
from picamera import PiCamera<\/p>\n
from time import sleep<\/p>\n
\u521d\u59cb\u5316\u6444\u50cf\u5934<\/strong><\/h2>\n
camera = PiCamera()<\/p>\n
\u8bbe\u7f6e\u5206\u8fa8\u7387<\/strong><\/h2>\n
camera.resolution = (1280, 720)<\/p>\n
\u9884\u89c8<\/strong><\/h2>\n
camera.start_preview()<\/p>\n
\u7b49\u5f85\u6444\u50cf\u5934\u7a33\u5b9a<\/strong><\/h2>\n
sleep(2)<\/p>\n
\u62cd\u7167\u5e76\u4fdd\u5b58\u56fe\u50cf<\/strong><\/h2>\n
camera.capture('\/home\/pi\/captured_image.jpg')<\/p>\n
\u505c\u6b62\u9884\u89c8<\/strong><\/h2>\n
camera.stop_preview()<\/p>\n
\u5173\u95ed\u6444\u50cf\u5934<\/strong><\/h2>\n
camera.close()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e00\u3001\u4f7f\u7528OpenCV\u5e93\u6355\u83b7\u56fe\u50cf<\/h3>\n<\/p>\n
1\u3001\u5b89\u88c5OpenCV\u5e93<\/h4>\n<\/p>\n
\u5728\u4f7f\u7528OpenCV\u5e93\u4e4b\u524d\uff0c\u60a8\u9700\u8981\u5148\u5b89\u88c5\u8be5\u5e93\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5b89\u88c5OpenCV\u5e93\uff1a<\/p>\n<\/p>\n
pip install opencv-python<\/p>\n
pip install opencv-python-headless<\/p>\n
<\/code><\/pre>\n<\/p>\n
2\u3001\u521d\u59cb\u5316\u6444\u50cf\u5934<\/h4>\n<\/p>\n
\u4f7f\u7528OpenCV\u5e93\u6355\u83b7\u56fe\u50cf\u7684\u7b2c\u4e00\u6b65\u662f\u521d\u59cb\u5316\u6444\u50cf\u5934\u3002\u53ef\u4ee5\u4f7f\u7528cv2.VideoCapture()<\/code>\u51fd\u6570\u6765\u6253\u5f00\u6444\u50cf\u5934\uff1a<\/p>\n<\/p>\n
import cv2<\/p>\n
\u6253\u5f00\u6444\u50cf\u5934<\/strong><\/h2>\n
cap = cv2.VideoCapture(0)<\/p>\n
\u68c0\u67e5\u6444\u50cf\u5934\u662f\u5426\u6210\u529f\u6253\u5f00<\/strong><\/h2>\n
if not cap.isOpened():<\/p>\n
    print("\u65e0\u6cd5\u6253\u5f00\u6444\u50cf\u5934")<\/p>\n
    exit()<\/p>\n
<\/code><\/pre>\n<\/p>\n
3\u3001\u6355\u83b7\u56fe\u50cf<\/h4>\n<\/p>\n
\u4e00\u65e6\u6444\u50cf\u5934\u521d\u59cb\u5316\u6210\u529f\uff0c\u53ef\u4ee5\u4f7f\u7528cap.read()<\/code>\u51fd\u6570\u6355\u83b7\u56fe\u50cf\u3002\u8be5\u51fd\u6570\u8fd4\u56de\u4e24\u4e2a\u503c\uff1a\u4e00\u4e2a\u5e03\u5c14\u503cret<\/code>\uff0c\u8868\u793a\u662f\u5426\u6210\u529f\u6355\u83b7\u56fe\u50cf\uff1b\u53e6\u4e00\u4e2a\u662f\u6355\u83b7\u7684\u56fe\u50cf\u5e27frame<\/code>\uff1a<\/p>\n<\/p>\n
# \u8bfb\u53d6\u4e00\u5e27\u56fe\u50cf<\/p>\n
ret, frame = cap.read()<\/p>\n
\u68c0\u67e5\u662f\u5426\u6210\u529f\u8bfb\u53d6\u56fe\u50cf<\/strong><\/h2>\n
if not ret:<\/p>\n
    print("\u65e0\u6cd5\u8bfb\u53d6\u56fe\u50cf")<\/p>\n
    exit()<\/p>\n
<\/code><\/pre>\n<\/p>\n
4\u3001\u4fdd\u5b58\u56fe\u50cf<\/h4>\n<\/p>\n
\u6355\u83b7\u56fe\u50cf\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528cv2.imwrite()<\/code>\u51fd\u6570\u5c06\u56fe\u50cf\u4fdd\u5b58\u5230\u6587\u4ef6\u4e2d\u3002\u8be5\u51fd\u6570\u63a5\u53d7\u4e24\u4e2a\u53c2\u6570\uff1a\u6587\u4ef6\u540d\u548c\u56fe\u50cf\u5e27\uff1a<\/p>\n<\/p>\n
# \u4fdd\u5b58\u56fe\u50cf<\/p>\n
cv2.imwrite('captured_image.jpg', frame)<\/p>\n
<\/code><\/pre>\n<\/p>\n
5\u3001\u91ca\u653e\u6444\u50cf\u5934<\/h4>\n<\/p>\n
\u6700\u540e\uff0c\u4f7f\u7528cap.release()<\/code>\u51fd\u6570\u91ca\u653e\u6444\u50cf\u5934\u8d44\u6e90\uff1a<\/p>\n<\/p>\n
# \u91ca\u653e\u6444\u50cf\u5934<\/p>\n
cap.release()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e8c\u3001\u8bbe\u7f6e\u62cd\u7167\u53c2\u6570\u548c\u8c03\u6574\u56fe\u50cf\u8d28\u91cf<\/h3>\n<\/p>\n
1\u3001\u8c03\u6574\u5206\u8fa8\u7387<\/h4>\n<\/p>\n
\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u6444\u50cf\u5934\u5c5e\u6027\u6765\u8c03\u6574\u62cd\u7167\u53c2\u6570\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528cap.set()<\/code>\u51fd\u6570\u8bbe\u7f6e\u5206\u8fa8\u7387\uff1a<\/p>\n<\/p>\n
# \u8bbe\u7f6e\u5206\u8fa8\u7387<\/p>\n
cap.set(cv2.CAP_PROP_FRAME_WIDTH, 1280)<\/p>\n
cap.set(cv2.CAP_PROP_FRAME_HEIGHT, 720)<\/p>\n
<\/code><\/pre>\n<\/p>\n
2\u3001\u8c03\u6574\u56fe\u50cf\u8d28\u91cf<\/h4>\n<\/p>\n
\u5728\u4fdd\u5b58JPEG\u683c\u5f0f\u56fe\u50cf\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u538b\u7f29\u8d28\u91cf\u53c2\u6570\u6765\u8c03\u6574\u56fe\u50cf\u8d28\u91cf\u3002cv2.imwrite()<\/code>\u51fd\u6570\u652f\u6301\u7b2c\u4e09\u4e2a\u53c2\u6570\u7528\u4e8e\u6307\u5b9a\u56fe\u50cf\u8d28\u91cf\uff1a<\/p>\n<\/p>\n
# \u4fdd\u5b58\u56fe\u50cf\u5e76\u8bbe\u7f6e\u538b\u7f29\u8d28\u91cf<\/p>\n
cv2.imwrite('captured_image.jpg', frame, [int(cv2.IMWRITE_JPEG_QUALITY), 90])<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528PiCamera\u5e93<\/h3>\n<\/p>\n
1\u3001\u5b89\u88c5PiCamera\u5e93<\/h4>\n<\/p>\n
\u5982\u679c\u60a8\u4f7f\u7528\u7684\u662fRaspberry Pi\uff0c\u5e76\u4e14\u6444\u50cf\u5934\u6a21\u5757\u662fRaspberry Pi Camera Module\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528PiCamera\u5e93\u8fdb\u884c\u62cd\u7167\u3002\u9996\u5148\u5b89\u88c5PiCamera\u5e93\uff1a<\/p>\n<\/p>\n
pip install picamera<\/p>\n
<\/code><\/pre>\n<\/p>\n
2\u3001\u521d\u59cb\u5316\u6444\u50cf\u5934<\/h4>\n<\/p>\n
\u4f7f\u7528PiCamera\u5e93\u6355\u83b7\u56fe\u50cf\u7684\u7b2c\u4e00\u6b65\u662f\u521d\u59cb\u5316\u6444\u50cf\u5934\u3002\u53ef\u4ee5\u4f7f\u7528PiCamera()<\/code>\u7c7b\u6765\u521d\u59cb\u5316\u6444\u50cf\u5934\uff1a<\/p>\n<\/p>\n
from picamera import PiCamera<\/p>\n
\u521d\u59cb\u5316\u6444\u50cf\u5934<\/strong><\/h2>\n
camera = PiCamera()<\/p>\n
<\/code><\/pre>\n<\/p>\n
3\u3001\u8bbe\u7f6e\u5206\u8fa8\u7387\u548c\u9884\u89c8<\/h4>\n<\/p>\n
\u53ef\u4ee5\u4f7f\u7528camera.resolution<\/code>\u5c5e\u6027\u8bbe\u7f6e\u5206\u8fa8\u7387\uff0c\u5e76\u4f7f\u7528camera.start_preview()<\/code>\u51fd\u6570\u542f\u52a8\u6444\u50cf\u5934\u9884\u89c8\uff1a<\/p>\n<\/p>\n
# \u8bbe\u7f6e\u5206\u8fa8\u7387<\/p>\n
camera.resolution = (1280, 720)<\/p>\n
\u9884\u89c8<\/strong><\/h2>\n
camera.start_preview()<\/p>\n
<\/code><\/pre>\n<\/p>\n
4\u3001\u6355\u83b7\u56fe\u50cf<\/h4>\n<\/p>\n
\u5728\u9884\u89c8\u8fc7\u7a0b\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528camera.capture()<\/code>\u51fd\u6570\u6355\u83b7\u56fe\u50cf\u5e76\u4fdd\u5b58\u5230\u6587\u4ef6\u4e2d\uff1a<\/p>\n<\/p>\n
from time import sleep<\/p>\n
\u7b49\u5f85\u6444\u50cf\u5934\u7a33\u5b9a<\/strong><\/h2>\n
sleep(2)<\/p>\n
\u62cd\u7167\u5e76\u4fdd\u5b58\u56fe\u50cf<\/strong><\/h2>\n
camera.capture('\/home\/pi\/captured_image.jpg')<\/p>\n
<\/code><\/pre>\n<\/p>\n
5\u3001\u505c\u6b62\u9884\u89c8\u548c\u5173\u95ed\u6444\u50cf\u5934<\/h4>\n<\/p>\n
\u6700\u540e\uff0c\u4f7f\u7528camera.stop_preview()<\/code>\u51fd\u6570\u505c\u6b62\u6444\u50cf\u5934\u9884\u89c8\uff0c\u5e76\u4f7f\u7528camera.close()<\/code>\u51fd\u6570\u5173\u95ed\u6444\u50cf\u5934\uff1a<\/p>\n<\/p>\n
# \u505c\u6b62\u9884\u89c8<\/p>\n
camera.stop_preview()<\/p>\n
\u5173\u95ed\u6444\u50cf\u5934<\/strong><\/h2>\n
camera.close()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u56db\u3001\u56fe\u50cf\u683c\u5f0f\u8f6c\u6362\u548c\u4fdd\u5b58<\/h3>\n<\/p>\n
OpenCV\u548cPiCamera\u5e93\u90fd\u652f\u6301\u591a\u79cd\u56fe\u50cf\u683c\u5f0f\u3002\u5728\u4fdd\u5b58\u56fe\u50cf\u65f6\uff0c\u53ef\u4ee5\u6839\u636e\u9700\u8981\u9009\u62e9\u4e0d\u540c\u7684\u683c\u5f0f\u3002\u4f8b\u5982\uff0c\u4f7f\u7528OpenCV\u4fdd\u5b58\u4e3aPNG\u683c\u5f0f\uff1a<\/p>\n<\/p>\n
cv2.imwrite('captured_image.png', frame)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528PiCamera\u4fdd\u5b58\u4e3aBMP\u683c\u5f0f\uff1a<\/p>\n<\/p>\n
camera.capture('\/home\/pi\/captured_image.bmp')<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e94\u3001\u9009\u62e9\u4fdd\u5b58\u8def\u5f84\u548c\u6587\u4ef6\u540d<\/h3>\n<\/p>\n
\u5728\u4fdd\u5b58\u56fe\u50cf\u65f6\uff0c\u53ef\u4ee5\u6839\u636e\u9700\u8981\u9009\u62e9\u4fdd\u5b58\u8def\u5f84\u548c\u6587\u4ef6\u540d\u3002\u4f8b\u5982\uff0c\u4f7f\u7528OpenCV\u4fdd\u5b58\u5230\u6307\u5b9a\u8def\u5f84\uff1a<\/p>\n<\/p>\n
cv2.imwrite('\/path\/to\/save\/captured_image.jpg', frame)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528PiCamera\u4fdd\u5b58\u5230\u6307\u5b9a\u8def\u5f84\uff1a<\/p>\n<\/p>\n
camera.capture('\/home\/pi\/images\/captured_image.jpg')<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u786e\u4fdd\u6307\u5b9a\u7684\u8def\u5f84\u662f\u6709\u6548\u7684\uff0c\u5e76\u4e14\u5177\u6709\u5199\u5165\u6743\u9650\u3002<\/p>\n<\/p>\n
\u516d\u3001\u603b\u7ed3<\/h3>\n<\/p>\n
\u672c\u6587\u8be6\u7ec6\u4ecb\u7ecd\u4e86\u5982\u4f55\u5728Python\u4e2d\u4f7f\u7528\u6444\u50cf\u5934\u62cd\u7167\u5e76\u4fdd\u5b58\u56fe\u50cf\u7684\u65b9\u6cd5\u3002\u4e3b\u8981\u4ecb\u7ecd\u4e86\u4f7f\u7528OpenCV\u5e93\u548cPiCamera\u5e93\u8fdb\u884c\u6444\u50cf\u5934\u62cd\u7167\u548c\u4fdd\u5b58\u56fe\u50cf\u7684\u6b65\u9aa4\u3002\u901a\u8fc7\u8bbe\u7f6e\u62cd\u7167\u53c2\u6570\u548c\u8c03\u6574\u56fe\u50cf\u8d28\u91cf\uff0c\u53ef\u4ee5\u5b9e\u73b0\u66f4\u597d\u7684\u62cd\u7167\u6548\u679c\u3002\u5e0c\u671b\u672c\u6587\u5bf9\u60a8\u6709\u6240\u5e2e\u52a9\u3002\u5982\u679c\u60a8\u5bf9\u8ba1\u7b97\u673a\u89c6\u89c9\u548c\u56fe\u50cf\u5904\u7406\u611f\u5174\u8da3\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u5b66\u4e60OpenCV\u548cPiCamera\u7684\u66f4\u591a\u529f\u80fd\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Python\u4e2d\u4f7f\u7528\u6444\u50cf\u5934\u62cd\u7167\u5e76\u4fdd\u5b58\u56fe\u50cf\uff1f<\/strong>
\u8981\u5728Python\u4e2d\u5b9e\u73b0\u4f7f\u7528\u6444\u50cf\u5934\u62cd\u7167\u5e76\u4fdd\u5b58\u56fe\u50cf\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528OpenCV\u5e93\u3002\u9996\u5148\uff0c\u786e\u4fdd\u60a8\u5df2\u7ecf\u5b89\u88c5\u4e86OpenCV\u5e93\uff0c\u53ef\u4ee5\u901a\u8fc7\u547d\u4ee4pip install opencv-python<\/code>\u6765\u5b89\u88c5\u3002\u63a5\u4e0b\u6765\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u83b7\u53d6\u89c6\u9891\u6d41\u5e76\u6355\u6349\u56fe\u50cf\uff1a<\/p>\n
import cv2\n\n# \u521d\u59cb\u5316\u6444\u50cf\u5934\ncap = cv2.VideoCapture(0)\n\n# \u8bfb\u53d6\u4e00\u5e27\nret, frame = cap.read()\n\n# \u4fdd\u5b58\u56fe\u50cf\ncv2.imwrite('captured_image.jpg', frame)\n\n# \u91ca\u653e\u6444\u50cf\u5934\ncap.release()\n<\/code><\/pre>\n
\u901a\u8fc7\u8fd0\u884c\u8fd9\u4e2a\u7b80\u5355\u7684\u7a0b\u5e8f\uff0c\u60a8\u53ef\u4ee5\u8f7b\u677e\u62cd\u6444\u5e76\u4fdd\u5b58\u4e00\u5f20\u56fe\u50cf\u3002<\/p>\n
\u4f7f\u7528Python\u62cd\u7167\u65f6\uff0c\u53ef\u4ee5\u9009\u62e9\u5206\u8fa8\u7387\u5417\uff1f<\/strong>
\u662f\u7684\uff0c\u60a8\u53ef\u4ee5\u8bbe\u7f6e\u6444\u50cf\u5934\u7684\u5206\u8fa8\u7387\u3002\u5728\u8c03\u7528cv2.VideoCapture<\/code>\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528set()<\/code>\u65b9\u6cd5\u6765\u6307\u5b9a\u5bbd\u5ea6\u548c\u9ad8\u5ea6\u3002\u4f8b\u5982\uff0c\u8981\u8bbe\u7f6e\u5206\u8fa8\u7387\u4e3a640×480\uff0c\u53ef\u4ee5\u5728\u4ee3\u7801\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u884c\uff1a<\/p>\n
cap.set(cv2.CAP_PROP_FRAME_WIDTH, 640)\ncap.set(cv2.CAP_PROP_FRAME_HEIGHT, 480)\n<\/code><\/pre>\n
\u8fd9\u5c06\u786e\u4fdd\u60a8\u62cd\u6444\u7684\u56fe\u50cf\u5177\u6709\u6307\u5b9a\u7684\u5206\u8fa8\u7387\u3002<\/p>\n
\u5982\u4f55\u5728\u62cd\u7167\u65f6\u6dfb\u52a0\u65f6\u95f4\u6233\u6216\u6c34\u5370\uff1f<\/strong>
\u60a8\u53ef\u4ee5\u4f7f\u7528OpenCV\u5728\u62cd\u6444\u7684\u56fe\u50cf\u4e0a\u6dfb\u52a0\u65f6\u95f4\u6233\u6216\u6c34\u5370\u3002\u53ef\u4ee5\u4f7f\u7528cv2.putText()<\/code>\u51fd\u6570\u5728\u56fe\u50cf\u4e0a\u7ed8\u5236\u6587\u672c\u3002\u4ee5\u4e0b\u793a\u4f8b\u4ee3\u7801\u5c55\u793a\u4e86\u5982\u4f55\u5728\u56fe\u50cf\u4e0a\u6dfb\u52a0\u5f53\u524d\u65f6\u95f4\uff1a<\/p>\n
import cv2\nimport datetime\n\n# \u521d\u59cb\u5316\u6444\u50cf\u5934\ncap = cv2.VideoCapture(0)\nret, frame = cap.read()\n\n# \u6dfb\u52a0\u65f6\u95f4\u6233\ntimestamp = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')\ncv2.putText(frame, timestamp, (10, 30), cv2.FONT_HERSHEY_SIMPLEX, 1, (255, 255, 255), 2)\n\n# \u4fdd\u5b58\u56fe\u50cf\ncv2.imwrite('captured_image_with_timestamp.jpg', frame)\n\n# \u91ca\u653e\u6444\u50cf\u5934\ncap.release()\n<\/code><\/pre>\n
\u901a\u8fc7\u8fd9\u4e9b\u6b65\u9aa4\uff0c\u60a8\u53ef\u4ee5\u5728\u62cd\u6444\u7684\u56fe\u50cf\u4e0a\u8f7b\u677e\u6dfb\u52a0\u4e2a\u6027\u5316\u7684\u5185\u5bb9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u4e00\u3001Python\u5982\u4f55\u7528\u6444\u50cf\u5934\u62cd\u7167\u4fdd\u5b58 \u4f7f\u7528OpenCV\u5e93\u3001\u4f7f\u7528PiCamera\u5e93\u3001\u9009\u62e9\u4fdd\u5b58\u8def\u5f84\u548c\u6587\u4ef6\u540d\u3001\u56fe\u50cf\u683c […]","protected":false},"author":3,"featured_media":1070165,"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\/1070158"}],"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=1070158"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1070158\/revisions"}],"predecessor-version":[{"id":1070166,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1070158\/revisions\/1070166"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1070165"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1070158"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1070158"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1070158"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}