a hybrid illumination refinement technique with copyright protection

碩士 === 逢甲大學 === 資訊工程學系 === 103 === Image archive is a transformation from source to its digital form. This process, however, often leads to the irregular distribution of image illumination, which distorting the content of images. In this article, we propose a hybrid illumination technique based on d...

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Bibliographic Details
Main Authors:	Yi-Hua Wang, 王翊樺
Other Authors:	Jung-San Lee
Format:	Others
Language:	en_US
Published:	2015
Online Access:	http://ndltd.ncl.edu.tw/handle/92255354479667484138

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spelling	ndltd-TW-103FCU053920082016-07-31T04:22:32Z http://ndltd.ncl.edu.tw/handle/92255354479667484138 a hybrid illumination refinement technique with copyright protection 具版權保護之光源重建混和機制 Yi-Hua Wang 王翊樺碩士逢甲大學資訊工程學系 103 Image archive is a transformation from source to its digital form. This process, however, often leads to the irregular distribution of image illumination, which distorting the content of images. In this article, we propose a hybrid illumination technique based on double Niblack thresholds to refine the brightness of under-exposure and over-exposure images, including the text image and the text-photo image. In particular, we introduce the watermarking concept to the transformation so that the improver can demonstrate the copyright of this refinement in the future. Experimental results have shown that the new method can effectively adjust the illumination to improve the quality of digital images without the influence of the appended watermark. Jung-San Lee 李榮三 2015 學位論文 ; thesis 52 en_US
collection	NDLTD
language	en_US
format	Others
sources	NDLTD
description	碩士 === 逢甲大學 === 資訊工程學系 === 103 === Image archive is a transformation from source to its digital form. This process, however, often leads to the irregular distribution of image illumination, which distorting the content of images. In this article, we propose a hybrid illumination technique based on double Niblack thresholds to refine the brightness of under-exposure and over-exposure images, including the text image and the text-photo image. In particular, we introduce the watermarking concept to the transformation so that the improver can demonstrate the copyright of this refinement in the future. Experimental results have shown that the new method can effectively adjust the illumination to improve the quality of digital images without the influence of the appended watermark.
author2	Jung-San Lee
author_facet	Jung-San Lee Yi-Hua Wang 王翊樺
author	Yi-Hua Wang 王翊樺
spellingShingle	Yi-Hua Wang 王翊樺 a hybrid illumination refinement technique with copyright protection
author_sort	Yi-Hua Wang
title	a hybrid illumination refinement technique with copyright protection
title_short	a hybrid illumination refinement technique with copyright protection
title_full	a hybrid illumination refinement technique with copyright protection
title_fullStr	a hybrid illumination refinement technique with copyright protection
title_full_unstemmed	a hybrid illumination refinement technique with copyright protection
title_sort	hybrid illumination refinement technique with copyright protection
publishDate	2015
url	http://ndltd.ncl.edu.tw/handle/92255354479667484138
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a hybrid illumination refinement technique with copyright protection

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