Gradient based adaptive thresholding
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2014
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my.unimap-341902017-11-29T04:09:07Z Gradient based adaptive thresholding Haniza, Yazid, Dr. Hamzah, Arof, Dr. haniza.yazid@gmail.com Adaptive thresholding Binarization Diabetic retinopathy Exudate detection Gradient based thresholding Handwritten document images Image segmentation Medical image analysis Link to publisher's homepage at http://www.sciencedirect.com/ For images with poor and non-uniform illumination, adaptive thresholding is required to separate the objects of interest from the background. In this paper a new approach to create an adaptive threshold surface is proposed to segment an image. The technique is inspired by the Yanowitz's method and is improved upon by the introduction of a simpler and more accurate threshold surface. The method is tested on several images of different patterns with varying illumination and the results are compared to the ones produced by a number of adaptive thresholding algorithms. In order to demonstrate the effectiveness, the proposed method had been implemented in medical and document images. The proposed method compares favorably against those using watershed and morphology in medical image and favorably against variable threshold and adaptive Otsu's N-thresholding for document image. 2014-04-30T04:43:27Z 2014-04-30T04:43:27Z 2013 Article Journal of Visual Communication and Image Representation, vol. 24(7), 2013, pages 926-936 1047-3203 http://www.sciencedirect.com/science/article/pii/S1047320313001144 http://dspace.unimap.edu.my:80/dspace/handle/123456789/34190 http://dx.doi.org/10.1016/j.jvcir.2013.06.001 en Elsevier Ltd. |
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Adaptive thresholding Binarization Diabetic retinopathy Exudate detection Gradient based thresholding Handwritten document images Image segmentation Medical image analysis |
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Adaptive thresholding Binarization Diabetic retinopathy Exudate detection Gradient based thresholding Handwritten document images Image segmentation Medical image analysis Haniza, Yazid, Dr. Hamzah, Arof, Dr. Gradient based adaptive thresholding |
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Link to publisher's homepage at http://www.sciencedirect.com/ |
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haniza.yazid@gmail.com |
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haniza.yazid@gmail.com Haniza, Yazid, Dr. Hamzah, Arof, Dr. |
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Article |
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Haniza, Yazid, Dr. Hamzah, Arof, Dr. |
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Haniza, Yazid, Dr. |
title |
Gradient based adaptive thresholding |
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Gradient based adaptive thresholding |
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Gradient based adaptive thresholding |
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Gradient based adaptive thresholding |
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Gradient based adaptive thresholding |
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gradient based adaptive thresholding |
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Elsevier Ltd. |
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2014 |
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http://dspace.unimap.edu.my:80/dspace/handle/123456789/34190 |
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1643802753491795968 |
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