Python3 Ubuntu - 技术栈

一、安装中文输入法

1.sudo apt install ibus-sunpinyin

2.点击右上角输入法，然后点击加号，输入yin添加进来，最后选中输入法即可

二、安装截屏软件

1.sudo apt install gnome-screenshot

三、安装opencv-python

1.pip3 install --upgrade pip3

2.pip3 install -i https://pypi.tuna.tsinghua.edu.cn/simple/ opencv-python --verbose

3.Successfully installed numpy-1.19.5 opencv-python-4.9.0.80

四、打开csi摄像头

python 复制代码

import cv2
import numpy as np

def gstreamer_pipeline0(
    capture_width=1280,
    capture_height=720,
    display_width=720,
    display_height=480,
    framerate=30,
    flip_method=0):
    return (
            "nvarguscamerasrc sensor-id=0 ! "
            "video/x-raw(memory:NVMM), "
            "width=(int)%d,height=(int)%d, format=(string)NV12, framerate=(fraction)%d/1 ! "
            "nvvidconv flip-method=%d ! "
            "video/x-raw, width=(int)%d, height=(int)%d, format=(string)BGRx ! "
            "videoconvert ! video/x-raw, format=(string)BGR ! appsink"
        %(
                capture_width,
                capture_height,
                framerate,
                flip_method,
                display_width,
                display_height
        )
    )

def gstreamer_pipeline1(
    capture_width=1280,
    capture_height=720,
    display_width=1280,
    display_height=720,
    framerate=60,
    flip_method=0):
    return (
            "nvarguscamerasrc sensor-id=1 ! "
            "video/x-raw(memory:NVMM), "
            "width=(int)%d,height=(int)%d, "
            "format=(string)NV12, framerate=(fraction)%d/1 ! "
            "nvvidconv flip-method=%d ! "
            "video/x-raw, width=(int)%d, height=(int)%d, format=(string)BGRx ! "
            "videoconvert ! "
            "video/x-raw, format=(string)BGR ! appsink"
        %(
                capture_width,
                capture_height,
                framerate,
                flip_method,
                display_width,
                display_height
        )
    )
 
def show_camera():
    cap0 = cv2.VideoCapture(gstreamer_pipeline0(flip_method=0), cv2.CAP_GSTREAMER)
    #cap1 = cv2.VideoCapture(gstreamer_pipeline1(flip_method=0), cv2.CAP_GSTREAMER)
    while cap0.isOpened():
        flag0, frame0 = cap0.read()
	#flag1, frame1 = cap1.read()
        cv2.imshow("camera0", frame0)
	#cv2.imshow("camera1", frame1)
        k = cv2.waitKey(1)
        if k == ord('q'):
            break
    cap0.release()
    #cap1.release()
    cv2.destroyAllWindows()

if __name__ == '__main__':
    show_camera()

复制代码

我没k:
wget http://www.waveshare.net/w/upload/e/eb/Camera_overrides.tar.gz
tar zxvf Camera_overrides.tar.gz 
sudo cp camera_overrides.isp /var/nvidia/nvcam/settings/

我没k:
sudo chmod 664 /var/nvidia/nvcam/settings/camera_overrides.isp
sudo chown root:root /var/nvidia/nvcam/settings/camera_overrides.isp