Welcome to HD USB Camera repository

Clear background detection algorithm

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.

[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

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roslaunch opencv_apps segment_objects.launch              # Clear background detection algorithm

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

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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 image

Enter the following command to select the corresponding topic

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rqt_image_view

• LAN view image

(Same as under LAN) Enter IP+port in the browser, for example:

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192.168.2.150:8080 

2. Effect display

By comparing the images, it can be seen that the background has been cleared.