Document processing for automatic color form dropout

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dc.contributor.author Savakis, Andreas en_US
dc.contributor.author Brown, Christopher en_US
dc.date.accessioned 2007-07-05T13:56:12Z en_US
dc.date.available 2007-07-05T13:56:12Z en_US
dc.date.issued 2001-12 en_US
dc.identifier.citation Applications of Digital Image Processing XXI 4472 (2001) 575-583 en_US
dc.identifier.issn 0277-786X en_US
dc.identifier.uri http://hdl.handle.net/1850/4211 en_US
dc.description "Document processing for automatic color form dropout," Proceedings of Applications of Digital Image Processing XXIV. The International Society of Optical Engineers. Held in San Diego, California: July 2001. Copyright 2001 Society of Photo-Optical Instrumentation Engineers. This paper was published in SPIE Applications of Digital Image Processing XXIV, SPIE Volume 4472, and is made available as an electronic reprint with permission of SPIE. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. en_US
dc.description.abstract Color dropout refers to the process of converting color form documents to black and white by removing the colors that are part of the blank form and maintaining only the information entered in the form. In this paper, no prior knowledge of the form type is assumed. Color dropout is performed by associating darker non-dropout colors with information that is entered in the form and needs to be preserved. The color dropout filter parameters include the color values of the non-dropout colors, e.g. black and blue, the distance metric, e.g. Euclidian, and the tolerances allowed around these colors. Color dropout is accomplished by converting pixels that have color within the tolerance sphere of the non-dropout colors to black and all others to white. This approach lends itself to high-speed hardware implementation with low memory requirements, such as an FPGA platform. Processing may be performed in RGB or a Luminance-Chrominance space, such as YCbCr. The color space transformation from RGB to YCbCr involves a matrix multiplication and the dropout filter implementation is similar in both cases. Results for color dropout processing in both RGB and YCbCr space are presented. en_US
dc.description.sponsorship n/a en_US
dc.language.iso en_US en_US
dc.publisher The International Society for Optical Engineering (SPIE) en_US
dc.relation.ispartofseries vol. 4472 en_US
dc.subject Color dropout en_US
dc.subject FPGA implementation en_US
dc.title Document processing for automatic color form dropout en_US
dc.type Article en_US

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