Automatic transformation of paper documents into electronic documents requires document segmentation at the first ***,some parameters restrictions such as variations in character font sizes,different text line spacing...
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ISBN:
(纸本)9781424484669
Automatic transformation of paper documents into electronic documents requires document segmentation at the first ***,some parameters restrictions such as variations in character font sizes,different text line spacing,and also not uniform document layout structures altogether have made it difficult to design a general-purpose document layout analysis algorithm for many *** in most previously reported methods it is inevitable to include these *** problem becomes excessively acute and severe,especially in Persian/Arabic *** the Persian/Arabic scripts differ considerably from the English scripts,most of the proposed methods for the English scripts do not render good results for the Persian *** this paper,we present a novel parameter-free method for segmenting the Persian/Arabic document images which also works well for English *** method segments the document image into maximal homogeneous regions and identifies them as texts and non-texts based on a pyramidalimage *** other words the proposed method is capable of document segmentation without considering the character font sizes,text line spacing,and document layout *** algorithm is examined for 150 Arabic/Persian and English documents and document segmentation process are done successfully for 96 percent of documents.
The usual methods of generating image mosaics suffer from abrupt color change where the color varies little in the source image, and from discontinuity of texture or shape where they are continuous in the source image...
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The usual methods of generating image mosaics suffer from abrupt color change where the color varies little in the source image, and from discontinuity of texture or shape where they are continuous in the source image. Our proposed method is based on wavelet transforms. It not only considers the similarity between a single tile and the corresponding original grid image, but also takes into account the match of surrounding tiles. The results of our experiments show that color changes are gentler in areas with similar colors originally, shapes are smoother, and textures are more refined in our image mosaics. (c) 2008 Society of Photo-Optical Instrumentation Engineers.
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