Tag: Image Processing

Algorithms for image processing and computer graphics. Various tutorials and articles related to image analysis, graphics, photo filtering, photo effects and more.

Simple Image class template in C++

This is just proof of concept (POC) source code of an Image template class written in C++. The code serves as an example basis and can extend to support more sophisticated tools for image analysis…

In: Programming
Canny edge detection: How to extract stable image contours

Canny edge detection is a popular image processing technique for extracting stable and thin image edges. In this tutorial, we will describe how to extract object outlines from photos and pictures.

In: Image Processing
Prewitt operator for edge detection

The Prewitt operator is one of the first algorithms for edge detection by gradient transform. It is developed by Judith M. S. Prewitt and is a popular tool for image analysis.

In: Image Processing
Gaussian filter in pure JavaScript

This article shows a sample implementation of a separable Gaussian filter in pure Java Script code. This filter finds many applications in various image processing algorithms. Canvas build ins Before we move on to the…

In: Image Processing, Programming
Fast image blur filter with OpenGL/WebGL

In this post, we implement a simple but fast algorithm for image blur filter with WebGL / OpenGL. The GL shader code in this article implements the average or box smoothing using GPU parallel processing.…

In: Image Processing, Programming
Harris Corner Detector: How to find key-points in pictures

Harris Corner Detector is a popular computer vision algorithm used to detect key points in images and video. Corners are important features of the image, as they provide useful information for detecting objects and scenes.

In: Image Processing