Docker images are used to create containers. An image is downloaded and stored locally when a container is created using a specific Docker image. This tutorial demonstrates how to get...

The Raspberry Pi has GPIO pins that can be used to connect various sensors to measure changes in physical properties such as temperature, capacitance, resistance, etc. This tutorial shows how...

There are various Raspberry Pi models. Some of the models looks similar visually. Model can be easily identified by using command line. This tutorial shows how to get a model...

A Bluetooth MAC (Media Access Control) address is a unique 48-bit value assigned to a Bluetooth device by the manufacturer to uniquely identify it. This tutorial provides 3 methods how...

The official Raspberry Pi OS images are generated using pi-gen tool, which available on GitHub repository. Tutorial shows how to get date when Raspberry Pi OS image was generated. The...

Raspberry Pi OS is available in a 32-bit and 64-bit architecture. When installing applications, it is important to know whether the operating system is 32-bit or 64-bit. This tutorial shows...

Most of the time, packages requires additional dependencies to work as intended. This tutorial demonstrates how to get package dependencies on Ubuntu. Use apt-cache or apt command with depends argument...

Gaussian blurring is an image smoothing algorithm that used to remove noise from the image. OpenCV has GaussianBlur function that allows to apply Gaussian blurring on image. Smoothing is controlled...

Canny edge detection is an image processing algorithm that allows to detect edges in an image. It is a multi-stage algorithm that involves a series of steps such as noise...

Black hat (also known as bottom hat) is a morphological image processing operation. It is the difference between image on which applied closing operation and input image. Black hat operation...