公开(公告)号：US07136187B1

公开(公告)日：2006-11-14

申请号：US09631730

申请日：2000-08-03

Applicant: Akito Ohkubo

Inventor： Akito Ohkubo

IPC: G06F15/00 ,  G03F3/08 ,  G06K9/00

CPC classification number: H04N1/6094 ,  H04N1/6033 ,  H04N1/6097 ,  H04N9/67

Abstract: There are disclosed a color correcting relation extracting method capable of extracting a know-how of an image formation by a camera man, and a color correction method of reproducing the know-how. A color of a patch of a color chart is measured to obtain a colorimetry value, and the color chart is photographed by a television camera to obtain RGB data. A know-how for converting the colorimetry value into the RGB data is combined with a monitor characteristic conversion for converting the RGB data into the colorimetry value of a color of an image on a monitor, so that a know-how for a preferable image formation is obtained.

Abstract translation: 公开了一种能够提取相机人的图像形成的专有技术的颜色校正关系提取方法以及再现专有技术的颜色校正方法。 测量彩色图表的颜色以获得比色值，并且通过电视摄像机拍摄彩色图表以获得RGB数据。 将比色值转换为RGB数据的专有技术与用于将RGB数据转换成监视器上的图像的颜色的比色值的监视器特性转换相结合，从而获得优选图像形成的专有技术 获得。

公开(公告)号：US07079280B2

公开(公告)日：2006-07-18

申请号：US10119115

申请日：2002-04-10

Applicant: Akito Ohkubo

Inventor： Akito Ohkubo

IPC: G06K15/00 ,  H04N1/46

CPC classification number: H04N1/6058

Abstract: To create a color conversion definition defining an association between a color in an arbitrary gamut and a color in a color in a target gamut, there are provided a definition creating step of creating a first color conversion defining an association between a color in a reference gamut close to the arbitrary gamut and a color in the arbitrary, and a definition combination step of combining a second color conversion definition created beforehand defining an association between a color in the reference gamut and a color in the target gamut, with the first color conversion definition created in said definition creating step.

公开(公告)号：US6026216A

公开(公告)日：2000-02-15

申请号：US732711

申请日：1996-10-18

Applicant: Shuichi Ohtsuka ,  Akira Yoda ,  Akito Ohkubo

Inventor： Shuichi Ohtsuka ,  Akira Yoda ,  Akito Ohkubo

IPC: H04N1/407 ,  H04N1/60 ,  B41B15/00 ,  H04N1/46

CPC classification number: H04N1/6052 ,  H04N1/4078 ,  H04N1/6011 ,  H04N1/6033 ,  H04N1/6072 ,  H04N1/6088 ,  H04N1/6097

Abstract: Layout data are classified into character data, line image data, and gradation image data by an interpreter, and the line image data and the gradation image data are converted into data depending on printing conditions and output conditions of an output apparatus by a color conversion processor. The gradation image data are converted into data to which an image structure produced upon printing is imparted, by a halftone dot simulation processor. These data are converted into image data for scanning recording by a raster image processor, and outputted as a color proof image from the output apparatus.

公开(公告)号：US5781709A

公开(公告)日：1998-07-14

申请号：US734018

申请日：1996-10-18

Applicant: Yoshinori Usami ,  Akito Ohkubo ,  Yoshifumi Dounomae

Inventor： Yoshinori Usami ,  Akito Ohkubo ,  Yoshifumi Dounomae

IPC: B41J2/525 ,  G03F3/10 ,  G06K15/02 ,  H04N1/46 ,  H04N1/60 ,  G06F15/00 ,  G03F3/08 ,  H04N1/23

CPC classification number: H04N1/6011 ,  G06K15/02 ,  G06K15/025 ,  G06K2215/0094

Abstract: A color proof is generated as a hard copy approximating a printed color document by a color printer or as a displayed image approximating a printed color document by a color display monitor. A color shift produced by a filtering process which cuts off a spatial frequency response inherent in an image output device such as a color printer, a color display monitor, or the like while retaining a spatial frequency response inherent in a printing screen of a printed color document during an image structure simulation process is corrected by a color shift correcting LUT, and thereafter a color shift caused when a color digital printer is used is corrected by a color shift correcting LUT. A generated color proof accurately reproduces colors and image structure of the printed color document.

Abstract translation: 作为彩色打印机的彩色印刷品近似印刷的彩色文档的硬拷贝或通过彩色显示监视器近似印刷的彩色文档的显示图像产生着色。 通过滤波处理产生的色彩偏移，其在保持印刷色彩的印刷画面中固有的空间频率响应的同时切断诸如彩色打印机，彩色显示监视器等的图像输出装置中固有的空间频率响应 通过色移校正LUT校正图像结构模拟处理期间的文档，然后通过色移校正LUT校正使用彩色数字打印机时产生的色移。 生成的色彩校正精确地再现了打印的彩色文档的颜色和图像结构。