Welcome to AI Vision USB Camera repository

Polygon outline

Polygon outline

1. Use

Code path：~/yahboomcar_ws/src/opencv_apps/launch

• Start the camera

roslaunch yahboomcar_visual opencv_apps.launch img_flip:=false

• img_flip parameter: whether the image needs to be flipped horizontally, the default is false.

The [usb_cam-test.launch] file opens the [web_video_server] node by default, and you can directly use the [IP:8080] web page to view images in real time.

• Start the corner detection function of Opencv_apps

x
roslaunch opencv_apps convex_hull.launch                  # Polygonal outline

The debug_view for some functions is disabled, and there is no screen appearing. You can view the effect in the following two ways.

x
The reason for closing debug_view is that it will generate errors on the terminal, but the actual effect has not been affected

• Local View Screen

Enter the following command and select the corresponding topic to see the effect:

xxxxxxxxxx
rqt_image_view

• LAN viewing screen

In the same local area network, enter IP+port (8080) in the browser, for example:

x
192.168.2.150:8080 # IP is the IP of the host computer

2. Effect display

Combine the images captured by the camera into a polygonal outline.