【2024 DigiKey Creative Contest】Part 2: Getting Started with OPENMV

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【2024 DigiKey Creative Contest】Part 2: Getting Started with OPENMV [Copy link]

 

First time using openmv

Download openmv IDE first

Then install

After the installation is complete, open the desktop shortcut

This is the routine that cannot be seen

Open the hardware OPENMV module and connect it to the USB port of the computer with a USB cable.

Click the icon

The Start button turns green

You can see the sample file in the file

Modify the color threshold

Test results, color recognition

Explanation of some procedures for color recognition

Sensor.snapshot() Explanation

img = sensor.snapshot(), captures the photo in the photosensitive element, stores the captured image in the auxiliary frame buffer storage area, and returns the parameter image object. At this time, the variable img is image, which can be understood as equivalent.

blob.elongation() explanation

The following sentence if blob.elongation() > 0.5:, the function of blob.elongation() is to see whether the pattern is like a circle. If it is more like a circle, the smaller the value, and if it is less like a circle, the larger the value.