发明名称 gamma -correction curve selecting apparatus and a gamma -correction curve creating apparatus
摘要 An image processing apparatus capable of creating or selecting a most suitable gamma -correction curve and shortening the image quality adjusting time. According to the invention, in an image processing apparatus for correcting the gamma -characteristic of the density value for each pixel of the original image to be processed and the output value of the image processing measure in the predetermined apparatus for receiving the image, or the gamma -characteristic of the writing-in value of the image processing apparatus in the predetermined apparatus for outputting the image and the density of the output image, the image processing apparatus includes a gamma -correction curve creating device for creating the gamma -correction curve from the input gamma -characteristic, and a second gamma -correction curve selecting device for selecting the most suitable gamma -correction curve among the plural gamma -correction curves by use of the gamma -correction curve emitted from the gamma -correction curve creating device.
申请公布号 US5589954(A) 申请公布日期 1996.12.31
申请号 US19940251312 申请日期 1994.05.31
申请人 RICOH COMPANY, LTD. 发明人 WATANABE, HIDEYUKI
分类号 H04N1/407;H04N1/60;(IPC1-7):H04N1/56 主分类号 H04N1/407
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