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Document Image Analysis (DIA) is the subfield of digital image processing that aims at converting document images to symbolic form for modification, storages, retrieval, reuse and transmission. It helps the transition from bookshelves and filing cabinets to the paperless and perhaps even wireless world. Preprocessing is the first stage in document image… (More)
This correspondence describes new two-stage data compression algorithms of Kanji character patterns digitized on the hexagonal mesh. One third of the pattern elements are stored, and an additional small amount of data is used to correct effors in the recovered pattern. A data reduction of 60 percent has been achieved.