Gradient Non-Maximum Suppression
The gradient Non-maximum suppression also known as edge thinning is a process of extracting thin, one pixel wide object’s contours. This process follows edge detection as a post processing step. …
Edge Detection
Edge Detection is an important process in image processing and computer vision. Edges describe the boundaries of objects, because of this they play a key role in many shape recognition algorithms.
In this section you will find different edge detection techniques for various computer vision tasks.
Sobel-Feldman filter: Edge Detection and Gradient Extraction
The Sobel filter (also called Sobel-Feldman operator) is an edge detection algorithm, that results in image emphasizing edges. Computer vision apps often use this image processing technique to extract the …
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Median Filter – edge preserving filter tutorial
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 paper noise (impulsive noise) and …
Hough Transform – Basic Shape Detection
The Hough Transform is a method to find shapes in an image. The classical transformation is initially designed to identify lines in the image. Later the transform extends to identify …