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    • 5. 发明申请
    • Method of and apparatus for converting colors
    • 用于转换颜色的方法和设备
    • US20100110456A1
    • 2010-05-06
    • US12588798
    • 2009-10-28
    • Shuhei Horita
    • Shuhei Horita
    • H04N1/60
    • B41F33/0027
    • A standard density print profile capable of producing a print of standard densities is generated by a printing press set to standard density conditions, and a designated density print profile capable of producing a print of designated densities is generated by the printing press when the printing press is set to designated density conditions. A color conversion table capable of producing the print of the designated densities with the printing press set to the standard density conditions is generated using the standard density print profile and the designated density print profile. The colors of the image data are converted using the color conversion table.
    • 通过设置为标准密度条件的印刷机产生能够产生标准密度的印刷品的标准密度印刷图案,并且当印刷机是印刷机时,由印刷机产生能够产生指定浓度印刷品的指定浓度印刷图案 设定为指定的密度条件。 使用标准密度打印轮廓和指定的浓度打印轮廓,产生能够利用设置为标准密度条件的印刷机产生指定浓度的打印的颜色转换表。 使用颜色转换表来转换图像数据的颜色。
    • 7. 发明授权
    • Apparatus for controlling the rotational speed of the ink fountain roller on the basis of the rate of area of the picture
    • 用于基于图像的面积率来控制墨斗辊的旋转速度的装置
    • US06781712B1
    • 2004-08-24
    • US09688240
    • 2000-10-16
    • Akira KomiyamaHiroyuki Fujii
    • Akira KomiyamaHiroyuki Fujii
    • G06F312
    • B41F33/0027B41F31/004
    • The image printing system is capable of properly defining amount of ink without adjusting ink clearance. The image printing system includes an offset printing machine, in which proper amount of ink is supplied to a plate drum via an ink fountain roller on the basis of image data. A memory stores the image data of an original image and an ink amount table, in which rotational speed data of the ink fountain roller correspond to rate of area of picture in the original image. A control unit calculates the rate of area of picture on the basis of the image data, reads the rotational speed of the ink fountain roller from the ink amount table on the basis of the rate of area of the picture, corrects the rotational speed so as to define proper control data for rotating the ink fountain roller, and sends the proper control data to the offset printing machine so as to control the amount of ink to be supplied to the plate drum.
    • 图像打印系统能够在不调整墨水清除的情况下适当地定义墨量。 图像打印系统包括胶印机,其中基于图像数据,通过墨斗辊将适量的墨水供应到印版滚筒。 存储器存储原始图像的图像数据和墨量表,其中墨斗辊的旋转速度数据对应于原始图像中的图像的面积率。 控制单元基于图像数据计算图像的面积率,基于图像的面积率从墨水量表读取墨斗辊的旋转速度,校正旋转速度,以便 以定义用于旋转墨斗辊的适当控制数据,并将适当的控制数据发送到胶版印刷机,以便控制供应到印版滚筒的墨水量。
    • 9. 发明授权
    • Method and device for determining the area coverage of an original
    • 确定原件面积覆盖率的方法和装置
    • US5724143A
    • 1998-03-03
    • US857332
    • 1992-03-25
    • Werner HuberHelmut Kipphan
    • Werner HuberHelmut Kipphan
    • B41F31/02B41F33/00B41F33/14G01J3/50G01B11/28
    • B41F33/0027
    • A method of determining area coverage of a printing original having printing areas and non-printing areas thereon, the printing areas being of a different color than that of the non-printing areas, the printing original having a location-dependent inhomogeneity independent of the area coverage, including optically scanning the original for determining a local diffuse reflection of a measured measuring field, the measuring result of the optical scanning being influenced by the inhomogeneity; determining at least two diffuse-reflection values from each measuring field, the diffuse-reflection values differing spectrally from one another in accordance with the color difference; and evaluating the two diffuse-reflection values and separating a component of the measuring result which is influenced by the area coverage, and a component of the measuring result which is influenced by the inhomogeneity; and the device thereof.
    • 一种确定其上具有打印区域和非打印区域的打印原稿的区域覆盖的方法,所述打印区域的颜色与非打印区域的颜色不同,所述打印原稿具有与区域无关的位置相关的不均匀性 包括光学扫描原稿以确定测量的测量场的局部漫反射,光学扫描的测量结果受到不均匀性的影响; 从每个测量场确定至少两个漫反射值,所述漫反射值根据所述色差彼此光谱地不同; 评估两个漫反射值,并分离受区域覆盖影响的测量结果的分量,以及受不均匀性影响的测量结果的分量; 及其装置。
    • 10. 发明授权
    • Method and apparatus using a conversion table based on pre-printed color
charts for determining half-tone dot percents required to reproduce the
color of a color specimen
    • US4717954A
    • 1988-01-05
    • US608230
    • 1984-05-08
    • Toshiji FujitaKazuo YaritaToshihiko HashimotoMasaki Nojima
    • Toshiji FujitaKazuo YaritaToshihiko HashimotoMasaki Nojima
    • H04N1/405B41F33/00G03F3/08G03F5/00B41M1/14G01J3/52
    • G03F5/00B41F33/0027
    • A method and apparatus for obtaining an accurate half-tone dot percent of each color separation where a color designated by a color specimen is to be reproduced by printing of ink of the colors, for example, yellow, magenta, cyan and black. A variety of color charts printed using predetermined combinations of half-tone dot percents are optically measured to obtain color information of the colors printed on the color charts. The obtained color information values together with the corresponding predetermined combinations of half-tone dot percents therefor are then utilized to prepare a conversion table of color information and corresponding half-tone dot percents for reproducing each of the colors printed on the color charts. A color specimen is then optically measured to detect color information of a color to be reproduced. The color information obtained from the color specimen is then successively compared with the color information of the conversion table, and the color information of the conversion table is selected which most closely corresponds to the color information obtained from the color specimen. The combination of half-tone dot percents corresponding to the selected color information from the conversion table is then displayed or otherwise outputted. The outputted combination of half-tone dot percents may then be used to reproduce the color designated by the color specimen. The method and apparatus also provides for interpolation operations if the color information obtained from the specimen does not precisely correspond to the color information in the conversion table. Further, the method and apparatus also provides for generating an expanded conversion table having expanded combinations of half-tone dot percents and corresponding expanded color information, and for performing an interpolation operation if a value of 0% and/or 100% is included in the combination of half-tone dot percents corresponding to the selected color information so as to obtain an interpolated combination of half-tone dot percents corresponding more closely to the color information obtained from the color specimen.