使用Python和OpenCV来捕获图像 – 业余语言练习

使用Python和OpenCV来捕获图像

sudo apt-get install libopencv-dev python3-opencv

cat python3-opencv

---------------------------------
import cv2
 
# 指定摄像头索引,0通常是内置摄像头,1是外接USB摄像头(如果有多个摄像头)
cap = cv2.VideoCapture(2)
 
# 检查摄像头是否成功打开
if not cap.isOpened():
    print("无法打开摄像头")
    exit()
 
# 捕获一帧图像
ret, frame = cap.read()
 
# 如果帧被正确捕获,ret是True
if ret:
    cv2.imwrite('captured_image.jpg', frame)  # 保存图像到文件
    print("图像已保存")
else:
    print("无法捕获图像")
 
# 释放摄像头资源
cap.release()
cv2.destroyAllWindows()
---------------------------------

python3 python3-opencv

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Categorized as ffmpeg

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