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Prewitt edge detector: gradient filter és nonmaxima-suppression (NMS), Thresholding algorithm by Otsu, Detection of circular object by edge detection and Hough transform for circles, Motion tracking of feature points and dense optical flow

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ImageAndVideoAnalysis

  1. Prewitt edge detector: gradient filter and nonmaxima-suppression (NMS)

Output is two images: 1. gradient magnitute; 2. final result after NMS.

Input:

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Prewitt edge detection:

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Nonmaxima-suppression:

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  1. Thresholding algorithm by Otsu

Output: thresholded image and obtained threshold value.

Input:

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Output:

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  1. Circle Hough Transform

Output: 1. accumulator image; 2. input image with objects detected in given range of diameters

Input:

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Output:

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Prewitt edge detector: gradient filter és nonmaxima-suppression (NMS), Thresholding algorithm by Otsu, Detection of circular object by edge detection and Hough transform for circles, Motion tracking of feature points and dense optical flow

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