منابع مشابه
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Document images produced by scanner or digital camera, usually suffer from geometric and photometric distortions. Both of them deteriorate the performance of OCR systems. In this paper, we present a novel method to compensate for undesirable geometric distortions aiming to improve OCR results. Our methodology is based on finding text lines by dynamic local connectivity map and then applying a l...
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In this paper, we propose a novel method for secure tamper localization in binary document images using erasable watermarks. For binary images, watermarking with pixel flipping approach is a difficult task, because it can bring noticeable visual distortion. In localization, finding sufficient number of low-distortion pixels in a block to embed the cryptographic signature and their blind detecti...
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ژورنال
عنوان ژورنال: Baghdad Science Journal
سال: 2008
ISSN: 2411-7986,2078-8665
DOI: 10.21123/bsj.5.2.313-317