Invention Grant
- Patent Title: Method and apparatus for compressing a document using pixel variation information
- Patent Title (中): 使用像素变化信息压缩文档的方法和装置
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Application No.: US13110386Application Date: 2011-05-18
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Publication No.: US08457426B1Publication Date: 2013-06-04
- Inventor: Ram Bhushan Agrawal , Amit Kumar Manocha
- Applicant: Ram Bhushan Agrawal , Amit Kumar Manocha
- Applicant Address: US CA San Jose
- Assignee: Adobe Systems Incorporated
- Current Assignee: Adobe Systems Incorporated
- Current Assignee Address: US CA San Jose
- Agency: Moser Taboada
- Main IPC: G06K9/36
- IPC: G06K9/36

Abstract:
A method and apparatus for providing document compression. In some embodiments, the method includes converting a document into a grayscale image, for each gradient component of the grayscale image, creating a monochrome image region, determining pixel variation information for the monochrome image region, and selecting the monochrome image region for a binary mask if the pixel variation information satisfies dynamic threshold data and creating a compressed document using the binary mask.
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