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METHOD FOR EMPHASIZING DIFFERENCES IN GRAPHICAL APPEARANCE BETWEEN AN ORIGINAL DOCUMENT AND A MODIFIED DOCUMENT WITH ANNOTATIONS
METHOD FOR EMPHASIZING DIFFERENCES IN GRAPHICAL APPEARANCE BETWEEN AN ORIGINAL DOCUMENT AND A MODIFIED DOCUMENT WITH ANNOTATIONS
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机译:强调原始文档和带注释的修正文档之间图形外观差异的方法
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摘要
A method for emphasizing differences in graphical appearances between an original document and a modified document is provided in accordance with an aspect of the present invention. The method includes the step of receiving a first bitmap of the modified document, and a second bitmap of the original document. The method includes deriving a set of difference points based upon a comparison of the first bitmap and the second bitmap. The method includes a step of superposing a spatial index onto the set of difference points, and generating polygon vertices from a plurality of adjacent elements of index. Each of the elements has a predetermined density of difference points. The method concludes with generating an annotation from the polygon vertices.
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