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Computer Vision¶

This project will officially enter the field of computer vision!

Note

You can read How to Use the Video Function?. Come and carry out this project smoothly.

Program

Note

  • You can write the program according to the following picture, please refer to the tutorial: How to Create a New Project?.

  • Or find the code with the same name on the Examples page of the EzBlock Studio and click Run or Edit directly.

../_images/sp210928_165255.png

Switch to the Remote Control interface, and you will see the following widgets.

../_images/sp210928_165642.png

After the program is running, you can switch the slider widget to turn on/off the face detection; click the D-Pad to select the color of the detection; click the button to print the detection result.

How it works?

../_images/sp210928_170920.png

This block is used to enable the camera module.

../_images/sp210928_171021.png

These two blocks are used to enable the face detection/color detection function.

../_images/sp210928_171125.png

These two blocks are used to output information. The detection result has five output values, namely coordinate x value, coordinate y value, width, height, and number.