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    • 1. 发明申请
    • IMAGE PROCESSING METHOD AND IMAGE PROCESSING APPARATUS
    • 图像处理方法和图像处理装置
    • US20080198393A1
    • 2008-08-21
    • US12031559
    • 2008-02-14
    • Michiko FujiwaraTomoe MatsuokaTakashi Usui
    • Michiko FujiwaraTomoe MatsuokaTakashi Usui
    • H04N1/60
    • H04N1/6019H04N1/4076
    • In the case where an output value of a document reading section for at least any of R, G and B is out of a range between a first reference value and a second reference value due to a change in an output value of a reading device caused by an electrical noise, a change of supply voltage, etc. when a document is being read, a second color conversion table is created in accordance with the above change by expanding ranges in a first color conversion table, which ranges are around predetermined first and second reference values and included in regions of RGB color system associated respectively with predetermined tone values of Y, M and C. Using the second color conversion table thus obtained, a color conversion is carried out from the RGB color system into the YMC color system.
    • 在由于读取装置的输出值的变化引起的R,G,B中的至少任一个的原稿读取部的输出值在第一基准值和第二基准值之间的范围内的情况下 通过电噪声,电源电压变化等,通过在第一颜色转换表中扩展范围,根据上述变化创建第二颜色转换表,该范围在第一颜色转换表中大约是预先确定的,并且 第二参考值,并且包括在分别与Y,M和C的预定色调值相关联的RGB颜色系统的区域中。使用由此获得的第二颜色转换表,从RGB颜色系统到YMC颜色系统执行颜色转换。
    • 5. 发明申请
    • Image processing apparatus performing color conversion
    • 进行颜色转换的图像处理装置
    • US20090147325A1
    • 2009-06-11
    • US12313232
    • 2008-11-18
    • Michiko FujiwaraKyosuke Taka
    • Michiko FujiwaraKyosuke Taka
    • H04N1/46G03F3/08G09G5/02
    • H04N1/603
    • An image processing apparatus handling combined data including read data from a scanner and written data written by a touch pen, capable of performing appropriate color conversion both on the read data and written data is provided. When a display image obtained by combining the read data and the written data is to be printed, the image processing apparatus executes first image processing on the read data, and second image processing on the written data, respectively. By an image forming apparatus, the combined data including the read data and the written data, which have been appropriately color-converted by respective image processing, is printed.
    • 提供一种图像处理装置,其处理包括来自扫描仪的读取数据的组合数据和由触摸笔写入的写入数据,能够对读取的数据和写入的数据进行适当的颜色转换。 当打印通过组合读取数据和写入数据而获得的显示图像时,图像处理装置分别对读取的数据执行第一图像处理,并对写入的数据执行第二图像处理。 通过图像形成装置,打印通过各自图像处理适当地进行了颜色转换的包括读取数据和写入数据的组合数据。
    • 6. 发明申请
    • Image forming apparatus
    • 图像形成装置
    • US20060164692A1
    • 2006-07-27
    • US11336138
    • 2006-01-19
    • Michiko FujiwaraTakashi KitagawaShinji Imagawa
    • Michiko FujiwaraTakashi KitagawaShinji Imagawa
    • H04N1/40G06K15/00
    • H04N1/4078H04N1/40006
    • In one embodiment, an image forming apparatus that digitally performs image processing and correction processing of image information, and calculates toner consumption by performing a pixel count of an input multilevel image, includes a counting portion that counts, pixel by pixel, the input signal levels of an input multilevel image; a weighting coefficient table that stores weighting coefficients corresponding to the input signal levels; a weighting calculation portion that obtains weighting coefficients corresponding to the input signal levels from the weighting coefficient table and performs weighting of each pixel when counting the input signal levels with the counting portion; and a rewriting portion that rewrites the weighting coefficients stored in the weighting coefficient table; in which a process control is performed when the calculated toner consumption reaches a predetermined value.
    • 在一个实施例中,数字地执行图像信息的图像处理和校正处理并且通过执行输入多值图像的像素计数来计算调色剂消耗的图像形成装置包括计数部分,逐个像素地计数输入信号电平 输入多级图像; 加权系数表,其存储对应于输入信号电平的加权系数; 加权计算部分,从加权系数表中获得与输入信号电平相对应的加权系数,并在用计数部分计数输入信号电平时对每个像素执行加权; 以及重写部分,其重写存储在加权系数表中的加权系数; 其中当所计算的调色剂消耗达到预定值时执行过程控制。