Document Image Enhancement Using Adaptive Directional Lifting-Based Wavelet Transform

被引:0
|
作者
Hsia, Chih-Hsien [1 ]
Hoang, Huong-Giang [2 ]
Tu, Han-Yen [1 ]
机构
[1] Chinese Culture Univ, Dept Elect Engn, Taipei, Taiwan
[2] Chinese Culture Univ, Grad Inst Digital Mechatron Technol, Taipei, Taiwan
关键词
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暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this work, we proposed a new adaptive method for handwriting documents denoising, which differs from others in the two aspects: 1) The proposed method's process is an adaptive histogram equalization to suppress unwanted interfering strokes, and 2) It develops a clear document image by using adaptive directional lifting-based discrete wavelet transform enhancing operations for the foreground and interfering strokes, respectively. As a result, this method not only removes the interfering or visible watermarking in background information but also significantly increases the readability of each document.
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页码:432 / 433
页数:2
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