Automatic background detection of scanned documents

Details Automatic background detection of scanned documents Automatic background detection of scanned documents

H - Electricity

04

N

H04N 1/40 (2006.01) G06T 7/00 (2006.01) H04N 1/38 (2006.01) H04N 1/407 (2006.01)

Patent

CA 2365001

A method for generating a background statistics that distinguishes between gray level information from document areas and non-document areas. The method includes determining a full page background statistics from selected pixels within a scanned area; determining a sub-region background statistics from selected pixels within a sub-region of the scanned area; determining if the sub-region background statistics corresponds to image data from a non-document area; determining if the full page background statistics is corrupted; and generating a validated full page background statistics if the full page background statistics is corrupted.

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