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Construct an OpenCV crowd counting device using Raspberry Pi

Published Time: 2022-08-20 16:31:29
In today's world of cutting-edge technology, digital image processing develops very rapidly and becomes an important part of many digital devices, such as mobile phones, security cameras, laptops, etc.

The required components


Raspberry PI 3 (any version)

Send the camera

Software and online services



Open CV3.0

Install OpenCV in Raspberry PI

The OpenCV library will be used here to detect crowds. To install OpenCV, first, update Raspberry Pi.

Install any other required software packages

Before we program the Raspberry Pi to crowd count, let's install the other required software packages.

Install ImUTIls: Imutils is used to perform some of the necessary image processing functions, such as translation, rotation, resizing, skeletonization, and more easily displaying Matplotlib images using OpenCV. Therefore, use the following command to install imutils:

Installation imutils pip3

Matplotlib: After that, install the Matplotlib library. Matplotlib is a comprehensive library for creating static, animated, and interactive visualizations in Python.

Pip3 install matplotlib

ThingSpeak Settings for headcount

ThingSpeak is a very popular Internet of Things platform that allows us to monitor our data from anywhere over the Internet.