公开(公告)号：US20040169889A1

公开(公告)日：2004-09-02

申请号：US10373790

申请日：2003-02-27

Applicant: Toshiba Tec Kabushiki Kaisha

Inventor： Takayuki Sawada

IPC: H04N001/60

CPC classification number: H04N1/6072 ,  H04N1/628

Abstract: This invention provides an image processing apparatus comprising a color distribution analyzing portion for analyzing color distribution of an inputted color image, an image content judgment portion for judging the content of a color image based on the analyzed color distribution, a color conversion parameter determining portion for determining a color conversion parameter based on the judged image content, and a color conversion portion which executes color conversion upon a color image based on this color conversion parameter.

Abstract translation: 本发明提供了一种图像处理装置，包括：颜色分布分析部分，用于分析输入的彩色图像的颜色分布;图像内容判断部分，用于基于所分析的颜色分布来判断彩色图像的内容;颜色转换参数确定部分， 基于所判断的图像内容来确定颜色转换参数;以及颜色转换部分，其基于该颜色转换参数对彩色图像执行颜色转换。

公开(公告)号：US20040105581A1

公开(公告)日：2004-06-03

申请号：US10721101

申请日：2003-11-26

Applicant: KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Takayuki Sawada

IPC: G06K009/00

CPC classification number: H04N1/603 ,  H04N1/6019

Abstract: There is disclosed an image processing apparatus of the present invention in which a color region of a range including a color range that can be outputted by an image output device is mapped based on a predetermined mapping function defined between the color region and a color conversion table address space by an address map producing section, so that waste in a color conversion table is inhibited, the number of valid lattice points in the color conversion table increases, and therefore color conversion accuracy is improved.

Abstract translation: 公开了一种本发明的图像处理装置，其中基于在颜色区域和颜色转换表之间定义的预定映射函数来映射包括可由图像输出装置输出的颜色范围的范围的颜色区域 通过地址映射产生部分的地址空间，使得颜色转换表中的废物被禁止，颜色转换表中的有效格点数量增加，因此提高了颜色转换精度。

公开(公告)号：US20040239969A1

公开(公告)日：2004-12-02

申请号：US10694981

申请日：2003-10-29

Applicant: KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Hirokazu Shoda ,  Takayuki Sawada

IPC: H04N001/60

CPC classification number: H04N1/6016 ,  H04N1/56

Abstract: An image processing apparatus including an input section configured to receive color image signals, a printing color designation section configured to designate printing colors of two colors, a conversion section configured to convert the color image signals which are received from the input section to be converted to two-state signals in a dimension-dropped fashion, and a color allocation section configured to allocate the printing colors of two colors which are designated by the printing color designation section to the converted two-state signals.

Abstract translation: 一种图像处理装置，包括被配置为接收彩色图像信号的输入部分，被配置为指定两种颜色的打印颜色的打印颜色指定部分，被配置为将从要转换的输入部分接收的彩色图像信号转换为 尺寸下降方式的两状态信号，以及配置为将由打印颜色指定部指定的两种颜色的打印色分配给转换后的两状态信号的颜色分配部。

公开(公告)号：US20030210411A1

公开(公告)日：2003-11-13

申请号：US10143699

申请日：2002-05-13

Applicant: TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Takayuki Sawada

IPC: B41J001/00

CPC classification number: H04N1/6027 ,  G03G15/011 ,  G03G15/041 ,  G03G2215/018 ,  G03G2215/0424

Abstract: R, G and B signals read by a 4-line color CCD sensor are converted into C, M and Y color signals. A black-and-white signal is generated from a luminance signal read by the 4-line color CCD sensor. Densities of the C, M and Y color signals are converted on the basis of the black-and-white signal.

Abstract translation: 通过4线彩色CCD传感器读取的R，G和B信号被转换为C，M和Y色彩信号。 从由4线彩色CCD传感器读取的亮度信号产生黑白信号。 基于黑白信号转换C，M和Y色信号的密度。

公开(公告)号：US20030067615A1

公开(公告)日：2003-04-10

申请号：US09973043

申请日：2001-10-10

Applicant: TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Haruko Kawakami ,  Takayuki Sawada

IPC: G06K015/02 ,  H04N001/60

CPC classification number: G06K15/02 ,  H04N1/40062 ,  H04N1/6058

Abstract: An image processing apparatus which processes a plurality of supplied color image signals and outputs the processed signals to an image forming apparatus. The image processing apparatus comprises a conversion section which converts the supplied color image signals to a plurality of color signals, a discrimination section which discriminates attributes of the supplied color image signals, a determination section which determines, based on the color signals converted by the conversion section, a plurality of color signals outside a color gamut capable of image formation in the image forming apparatus, a processing section which changes the color signals outside the color gamut determined by the determination section to a plurality of color signals in the color gamut of the image forming apparatus in accordance with a discrimination result of the discrimination section, and an output section which matches the color signals from the conversion section and the color signals from the processing section and delivers the matched result to the image forming apparatus.

Abstract translation: 一种处理多个提供的彩色图像信号并将处理的信号输出到图像形成装置的图像处理装置。 图像处理装置包括转换部分，其将所提供的彩色图像信号转换成多个彩色信号;识别部分，其鉴别所提供的彩色图像信号的属性;确定部分，其基于由转换器转换的颜色信号 在图像形成装置中能够进行图像形成的色域之外的多个彩色信号;处理部，其将由判定部判定的色域以外的色彩信号变更为色彩区域中的多个色彩信号 图像形成装置，以及与来自转换部分的颜色信号和来自处理部分的颜色信号相匹配的输出部分，并将匹配结果传送给图像形成装置。

公开(公告)号：US20030038996A1

公开(公告)日：2003-02-27

申请号：US09933036

申请日：2001-08-21

Applicant: TOSHIBA TEC KABUSHIKI KAISHA.

Inventor： Takayuki Sawada ,  Sunao Tabata

IPC: B41J001/00 ,  H04N001/46 ,  G06F015/00

CPC classification number: H04N1/6072 ,  H04N1/6025

Abstract: There is disclosed an image processing apparatus for generating an address based on a difference (MAXnullMIN) between a maximum value MAX and a minimum value MIN among signals CMY indicating three primary colors of a color image for each pixel, and generating a black ink signal based on data read from a lookup table in which the data is read from the generated address, so that a black ink strength is independently set with respect to density and chroma of the image. Moreover, the lookup table with the black ink signal and an undercolor signal stored therein has a storage capacity of a number obtained by totaling a number at which the difference (MAXnullMIN) between the maximum value MAX and the minimum value MIN is an integral multiple of a predetermined value and a number at which the difference is other than the integral multiple and the maximum value MAX is equal to a maximum value of a defined region. Thereby, all combinations of the maximum value MAX and minimum value MIN are linearly interpolated without disposing any storage region.

Abstract translation: 公开了一种图像处理装置，用于基于每个像素的彩色图像的三原色的信号CMY中的最大值MAX和最小值MIN之间的差（MAX-MIN）产生地址，并且生成黑色墨水 基于从其中从生成的地址读取数据的查找表读取的数据的信号，使得相对于图像的浓度和色度独立地设置黑色墨水强度。 此外，具有黑色墨水信号和存储在其中的深色度信号的查找表具有通过将最大值MAX和最小值MIN之间的差（MAX-MIN）成为积分的数量合计得到的数量的存储容量 预定值的倍数和该差除积分倍数以外的数量与最大值MAX等于限定区域的最大值。 因此，最大值MAX和最小值MIN的所有组合在不布置任何存储区域的情况下被线性内插。