发明名称 IMAGE PROCESSOR
摘要 PURPOSE:To provide the image processor having excellent color reproducibility by determining the image coefft. optimum for input image information or converting this information to an image coefft. according to the image ratio and image density ratio of the input image information. CONSTITUTION:An image ratio detecting circuit 10 which is inputted with the image signals of R, G, and B from a black/white correction circuit 3, calculates the image ratio and image density for the entire input range for each of the respective color R, G and B and makes judgment for the purpose of optimization of the image coefft. and an image coefft. conversion circuit 11 which calculates or converts the image coefft. according to the conditions judged by the image ratio detecting circuit 10 are provided. The image coefft. optimum for the input image information is determined or the information is converted to the image coefft. according to the image ratio and image density ratio of the input image information. The trouble arising from the increase in, for example, an ink implantation quantity is eliminated in this way and the processor, such as color recorder, adopting an ink jet recording system of good color reproducibility is obtd.
申请公布号 JPH04192667(A) 申请公布日期 1992.07.10
申请号 JP19900263200 申请日期 1990.10.02
申请人 CANON INC 发明人 TAJIKA HIROSHI;KOITABASHI NORIFUMI;MATSUBARA MIYUKI;HIRABAYASHI HIROMITSU;ARAI ATSUSHI
分类号 B41J2/21;B41J2/525;B41M5/00;G03G15/01;H04N1/40;H04N1/46;H04N1/60 主分类号 B41J2/21
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