发明名称 Image processing apparatus
摘要 An image processing apparatus is constructed by a C signal multi-level forming circuit, an M signal multi-level forming circuit, and a Y signal multi-level forming circuit for receiving multi-level color image data and multi-level black image data of a low resolution, converting the inputted multi-level color image data into data of at least three levels consisting of two bits, and converting into data of a higher resolution than the input data; a K signal binarization circuit and a smoothing processing unit for converting the inputted black image data into the binary data and converting into data of a higher resolution than the input data by a smoothing process, and a print unit for forming a color image on the basis of the binary C, M, Y and K data converted into the high resolution data. The multi-level color data and black image data are doubled and a multi-level memory to store the doubled data is unnecessary. The recording can be performed at a high resolution.
申请公布号 US5751929(A) 申请公布日期 1998.05.12
申请号 US19960594439 申请日期 1996.01.31
申请人 CANON KABUSHIKI KAISHA 发明人 OHNUMA, NOBUO;OHTA, TAKATOSHI
分类号 H04N1/04;H04N1/409;H04N1/58;(IPC1-7):G06F15/00 主分类号 H04N1/04
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