发明名称 Color chart
摘要 <p>A color chart having a plurality of mirror-image color blocks arranged in a matrix, with each color block a mirror image of an adjacent color block, each color block having rows and columns of color patches, wherein the concentration of a first color of the multiple colors changes unidirectionally across color patches in any given row of a color block, the concentration of a second color of the multiple colors changes unidirectionally across color patches in any given column of a color block, and the concentration of a third color of the multiple colors remains unchanged across all the plurality of color patches within a color block and differs only between color blocks.</p>
申请公布号 EP2469836(A1) 申请公布日期 2012.06.27
申请号 EP20110195399 申请日期 2011.12.22
申请人 RICOH COMPANY, LTD. 发明人 ISHIZAKI, HIROYOSHI;KITAI, TADASHI;KANEKO, HITOMI
分类号 H04N1/60 主分类号 H04N1/60
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