Tag: Filter

Posts Collection

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  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…

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  In: Image Processing

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  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…

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  In: Programming

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  Fast Image Blur Filter with OpenGL/WebGL

  In this post, we will implement a simple yet efficient algorithm for an image blur filter using WebGL/OpenGL. The GLSL shader code presented here applies…

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  In: Programming

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  Symmetric Nearest Neighbor Filter

  The Symmetric Nearest Neighbor Filter (SNN) is a non-linear edge preserving image processing filter. It is a very effective noise reduction technique that removes noise…

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  In: Image Processing

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  Median Filter: A Guide to Edge Preserving Blur

  The Median filter is a nonlinear noise reduction technique that is widely used in image processing. It is very effective in cases of salt and…

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  In: Image Processing

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  Mean Filter: Box blur for fast noise reduction

  The Mean filter is a linear low-pass blur photo filter where each pixel in the output image has average value of its neighboring pixels. The…

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  In: Image Processing