Signature based Document Image Retrieval Using Multi-level DWT Features
Автор: Umesh D. Dixit, M. S. Shirdhonkar
Журнал: International Journal of Image, Graphics and Signal Processing(IJIGSP) @ijigsp
Статья в выпуске: 8, 2017 года.
Бесплатный доступ
Automatic signature extraction from document image and retrieval has a large number of applications such as in business offices, organizations, institutes and digital libraries. Hence it has attracted a lot of researchers from the field of document image analysis and processing. This paper proposes a method for automatic signature extraction and signature based document image retrieval using multi-level discrete wavelet transform features. Since the distance measures play a vital role in pattern analysis, classification and clustering, in this paper we also compared the results of retrieval using 7 distance metrics such as Euclidean, Canberra, City-block, Chebychev, Cosine, Hamming and Jaccard. Results obtained in this paper shows that city-block distance with multi-level DWT features outperforms the other 6 distance metrics used for comparison.
Document image, Signature extraction, Signature based retrieval, Multi-level DWT, Distance measures, Connected components
Короткий адрес: https://sciup.org/15014217
IDR: 15014217
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