The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 14, 2012
Filed:
May. 12, 2009
Kenta Hosaki, Tokyo, JP;
Kenta Hosaki, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
This invention generates, from multi-value image data, encoded data having a fixed length of L bits for each block including m×n pixels. An extraction unit extracts representative two colors Cand Cfrom an input block. A detection unit generates binary identification information, which indicates one of the colors Cand Cto which each pixel in the block is approximate. A generating unit determines, according to a deletion pattern, which of identification data elements indicating the color Cand those indicating the color Care deleted more, and outputs the determination result as interpolated-identification data. A replacing unit replaces identification data which is the same as non-interpolated-identification data near the pixel position by the interpolated-identification data. A deletion unit deletes identification data according to the deletion pattern. A packing unit couples and outputs the colors Cand C, interpolated-identification data, and identification data after deletion.