English  |  正體中文  |  简体中文  |  Items with full text/Total items : 51511/86795 (59%)
Visitors : 8277571      Online Users : 99
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/109073


    Title: An Efficient Adaptive Image Enhancement Method in Wavelet Domain for Handwritten Document
    Authors: Tu, Han-Yen;Hsia, Chih-Hsien;Giang, Hoang Thi Huong
    Keywords: Wavelet Transforms;Histogram Equalization;Image Enhancement;Handwritten Document;Visible Watermark
    Date: 2016-09
    Issue Date: 2017-01-03 09:46:50 (UTC+8)
    Publisher: 淡江大學出版中心
    Abstract: In this study, a new method, called adaptive image enhancement (AIE), is used to enhance
    handwritten document images, such as historical documents. An AIE method is proposed to denoise
    handwritten documents in a wavelet domain, which differs from others methods in two aspects: Firstly,
    modified contrast limited adaptive histogram equalization (MCLAHE) is used to equalize the contrast
    of an image by cutting the histogram at some threshold, and then equalization is used. Secondly, the
    image is improved by using directional discrete wavelet transform (D2
    WT) enhancing for foreground
    and interfering strokes, respectively. As a result, this method not only removes the interfering strokes
    or visible watermarks in the background information, but also significantly increases the readability of
    handwritten document images.
    Relation: Journal of Applied Science and Engineering19(3), pp.357-370
    DOI: 10.6180/jase.2016.19.3.14
    Appears in Collections:[淡江理工學刊] 第19卷第3期

    Files in This Item:

    File Description SizeFormat
    index.html0KbHTML137View/Open

    All items in 機構典藏 are protected by copyright, with all rights reserved.


    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - Feedback