OpenCV4

Overview

This is a tutorial on how to install OpenCV4 and use camera module.

Materials/Prerequisites

Raspberry pi

Process

Install OpenCV

Follow these instructions to install OpenCV onto your Raspberry Pi using the terminal.

Important note: don't do make-j4. It may freeze so it best to just do make or make-j1.

After you have successfully installed OpenCV, you will be able to use import cv2. If you do it on the terminal, you want to put in these code source ~/.profile and then workon cv.

Step 2: Capturing image

Following these step to set up your camera.

Note: Ignoring GoPiGo installation.

In order to capture image, follow these instruction

Taking picture code

Note:

• Use sleep (measured in seconds) to create a delay between the preview: time.sleep(seconds)

• Another way to enable your camera is: go to the terminal → type in sudo raspi-config → select Enable Camera → press Enter → select Finish → reboot and log back on to the Raspberry Pi.