COLOR RECORDING DEVICE,申请号JP19940053728-传众专利搜索

COLOR RECORDING DEVICE

申请公布号：JPH07264425(A)

申请号：JP19940053728

申请日期：1994.03.24

申请公布日期：1995.10.13

申请人：

CANON INC

发明人：SAKAMOTO MASAHIRO

分类号：G03G15/01;G06T1/00;G06T5/00;H04N1/23;H04N1/46;H04N1/60

主分类号：G03G15/01

摘要：PURPOSE:To improve the quality of an image for a low density part such as a natural image and an image at a high density part such as a character part by applying UCR processing to each color signal so as to generate newly each density signal and recording the signal by 5 kinds of recording means based on each signal. CONSTITUTION:Each of received R, G, B signals is converted respectively into each of C, M, Y signals by a color conversion section 1 at first and converted respectively into C', Y', K1, K2 signals by a UCR(under color reduction) section 3. As the UCR processing implemented in this case, at first, an under color part of each of the C, M, Y signals is detected, then the detected under color part is divided into a high density component and a low density component in a predetermined ratio and a signal corresponding to each component is generated. Finally 5 kinds of recording means of a recording section 7 are used to record the signals corresponding to each of the C', Y', K1, K2 signals.