{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,5]],"date-time":"2025-10-05T19:56:59Z","timestamp":1759694219614,"version":"3.37.3"},"reference-count":23,"publisher":"World Scientific Pub Co Pte Ltd","issue":"14","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Patt. Recogn. Artif. Intell."],"published-print":{"date-parts":[[2019,12,31]]},"abstract":"<jats:p> It is common that historical Tibetan documents belonging to historical collections are poorly preserved and are prone to degradation processes. This causes many challenges that can be addressed by image binarization, the most common of which is stains. A lack of uniform standard datasets makes it difficult to evaluate binarization effects. Motivated by the poor effects and difficulty of evaluating the binarization of historical Tibetan document images, a combined approach is proposed that aims to improve overall performance. The method includes the following parts: first, image generation through standard binarization and the background extraction of color images, which are both used for image synthesis in preparing for an evaluation. Then, preliminary binarization processing is implemented through channel combination in the lab color space and through local binarization. The synthetic images are used to select the coefficient when the channels are combined. Furthermore, Local Binary Pattern (hereafter LBP) and image smoothing is carried out after the combination of the channels to obtain the outline of the text area. Finally, the final binarization image is obtained by combining the preliminary binarization image and the text area contour image. Our method achieved top performance compared to other methods after a large number of synthetic image tests with a variety of background types. <\/jats:p>","DOI":"10.1142\/s0218001419540387","type":"journal-article","created":{"date-parts":[[2019,3,13]],"date-time":"2019-03-13T03:58:36Z","timestamp":1552449516000},"page":"1954038","source":"Crossref","is-referenced-by-count":10,"title":["A Combined Approach for the Binarization of Historical Tibetan Document Images"],"prefix":"10.1142","volume":"33","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7076-9902","authenticated-orcid":false,"given":"Yuehui","family":"Han","sequence":"first","affiliation":[{"name":"Key Laboratory of China\u2019s Ethnic Languages and Information, Technology of Ministry of Education, Northwest Minzu University, Lanzhou, P. R. China"},{"name":"School of Mathematics and Computer Science, Northwest Minzu University, Lanzhou, P. R. 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