منابع مشابه
© Ijcsi Publication 2011
The classification of digital documents is a complex task in a document analysis flow. The amount of documents resulting from the OCR retro-conversion (optical character recognition) makes the classification task harder. In the literature, different features are used to improve the classification quality. In this paper, we evaluate various features on OCRed and non OCRed documents. Thanks to th...
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متن کامل© IJCSI PUBLICATION 2011 www.IJCSI.org IJCSI Publicity Board 2011
One of the advantages of the Discrete Wavelet Transform (DWT) compared to Fourier Transform (e.g. Discrete Cosine Transform DCT) is its ability to provide both spatial and frequency localization of image energy. However, WT coefficients, like DCT coefficients, are defined by magnitude as well as sign. While algorithms exist for the coding of wavelet coefficients magnitude, there are no efficien...
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ژورنال
عنوان ژورنال: Offset
سال: 1969
ISSN: 2204-3659,1445-9418
DOI: 10.15209/offset.v0i11.697