发明名称 GAMMA CORRECTION TABLE GENERATION METHOD OR IMAGE PROCESSING METHOD USING GAMMA CORRECTION TABLE AND CONTROL METHOD THEREOF
摘要 A gamma correction table generation method includes: obtaining density information by reading, with a reading sensor, a density patch output by an image forming device in a range wider than a cell, the density patch including a plurality of cells disposed such that a part of the cells as a unit representing a tone overlaps with each other and dots included in each of the cells are separated from each other to an extent that no influence is exerted on each other on a recording medium which the image forming device outputs; correcting the density information according to a number of the cells in the density patch; and generating a gamma correction table based on the corrected density information.
申请公布号 US2014146367(A1) 申请公布日期 2014.05.29
申请号 US201314088836 申请日期 2013.11.25
申请人 CANON KABUSHIKI KAISHA 发明人 KODAMA SHIGEO
分类号 H04N1/405 主分类号 H04N1/405
代理机构 代理人
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