Image processing apparatus, image processing method, and printer
    2.
    发明授权
    Image processing apparatus, image processing method, and printer 有权
    图像处理装置,图像处理方法和打印机

    公开(公告)号:US09055252B2

    公开(公告)日:2015-06-09

    申请号:US12966265

    申请日:2010-12-13

    CPC classification number: H04N1/4015 G06K9/03 H04N1/60 H04N1/6038

    Abstract: Provided is an image processing apparatus that can accurately and efficiently reduce color unevenness that occurs in a color image, which is formed by color mixture of a plurality of different types of inks, due to a variation in ejection characteristic among nozzles. The inks are respectively ejected from the nozzle arrays to print patches; regions where color correction for test color images should be performed are specified; a different types of color correction processing for color signals corresponding to the color correction regions are performed to print color correction patches; a color correction patch to be used is selected; on the basis of selected color correction processing, a table parameter corresponding to a nozzle is formed; when the plurality of color correction patches are formed, only correction candidate values having larger color differences than a predetermined threshold value in a uniform color space are generated for color signals.

    Abstract translation: 提供了一种图像处理装置,其能够精确且有效地减少由于喷嘴之间的喷射特性的变化而由多种不同类型的墨水的混合形成的彩色图像中发生的颜色不均匀。 油墨分别从喷嘴阵列喷出以印刷贴片; 指定应执行测试彩色图像的颜色校正的区域; 执行与颜色校正区域对应的颜色信号的不同类型的颜色校正处理以打印色彩校正斑块; 选择要使用的颜色校正补丁; 基于所选择的颜色校正处理,形成与喷嘴对应的表格参数; 当形成多个颜色校正贴片时,对于颜色信号仅产生在均​​匀颜色空间中具有比预定阈值更大的色差的校正候选值。

    IMAGE PROCESSING APPARATUS, PRINTING APPARATUS, AND IMAGE PROCESSING METHOD
    4.
    发明申请
    IMAGE PROCESSING APPARATUS, PRINTING APPARATUS, AND IMAGE PROCESSING METHOD 有权
    图像处理设备,打印设备和图像处理方法

    公开(公告)号:US20120081442A1

    公开(公告)日:2012-04-05

    申请号:US12966769

    申请日:2010-12-13

    CPC classification number: B41J2/2146 H04N1/6038

    Abstract: Area information is obtained with respect to a specified color and nozzle position having color unevenness. Then, coordinate information indicating a nozzle position corresponding to the above area information is obtained in a printing head or nozzle array corresponding to an ink color relating to the specified color information. Next, the number of candidate correction values or candidate patches is obtained on the basis of nozzle coordinates obtained corresponding to the area, by referring to a table. In this table, for example, the number of candidate correction values is small at a nozzle position where an effect due to the variations of nozzle ejection characteristics such as a nozzle ejection volume is small and a change direction is constant, and the number of candidate correction values is large at a nozzle position where an effect due to variations of nozzle ejection characteristics is large.

    Abstract translation: 获得关于具有颜色不均匀的指定颜色和喷嘴位置的区域信息。 然后,在对应于与指定颜色信息相关的墨水颜色的打印头或喷嘴阵列中获得指示与上述区域信息相对应的喷嘴位置的坐标信息。 接下来,通过参照表格,基于与该区域相对应地获得的喷嘴坐标,获得候选校正值或候选补丁的数量。 在该表中,例如,在喷嘴位置处的候补校正值的数量较少,其中由喷嘴喷射量等喷嘴喷射特性的变化引起的影响小,变化方向恒定,候选的次数 在由于喷嘴喷射特性的变化引起的效果大的喷嘴位置,校正值大。

    IMAGE PROCESSOR AND IMAGE PROCESSING METHOD
    5.
    发明申请
    IMAGE PROCESSOR AND IMAGE PROCESSING METHOD 有权
    图像处理器和图像处理方法

    公开(公告)号:US20120081436A1

    公开(公告)日:2012-04-05

    申请号:US12963657

    申请日:2010-12-09

    CPC classification number: B41J2/2139

    Abstract: When printing an image using a plurality of inks, color unevenness caused by variations in ejection characteristics among nozzles is corrected at suitable timings in accordance with change in the color unevenness over time, and favorable image output without noticeably color unevenness is maintained. For this purpose, parameters are prepared, for colors formed by combinations of at least two colors of ink, the parameters being determined so as to reduce differences in coloration on a print medium caused by individual variations in the ejection characteristics of a plurality of nozzles. When printing, a first color signal included in individual pixels is corrected for a second color signal by using the parameters. Information regarding the ejection volume characteristics of a plurality of nozzles is acquired as appropriate, and by estimating changes in coloration from this information, suitable timings for overwriting such parameters are determined.

    Abstract translation: 当使用多种油墨打印图像时,根据颜色不均匀随时间的变化在合适的时刻校正由喷嘴之间的喷射特性的变化引起的颜色不均匀性,并且保持良好的图像输出而没有明显的颜色不均匀。 为此,为了通过至少两种颜色的油墨的组合而形成的颜色,准备参数,确定这些参数,以减少由多个喷嘴的喷射特性的各种变化引起的打印介质上的着色差异。 当打印时,通过使用参数来校正包括在各个像素中的第一颜色信号用于第二颜色信号。 关于多个喷嘴的喷射体积特性的信息被适当地获取,并且通过根据该信息估计着色的变化,确定用于重写这些参数的合适的定时。

    Image processing apparatus, method, and computer product for adding reference frame information used to detect position of image embedded information
    7.
    发明授权
    Image processing apparatus, method, and computer product for adding reference frame information used to detect position of image embedded information 有权
    用于添加用于检测图像嵌入信息位置的参考帧信息的图像处理装置,方法和计算机产品

    公开(公告)号:US07773266B2

    公开(公告)日:2010-08-10

    申请号:US11561552

    申请日:2006-11-20

    Abstract: This invention is an image processing apparatus capable of adding a reference frame for accurately specifying an image region printed on a printing medium. An image forming unit (13) converts an input image for printing into that of a predetermined resolution. An additional information multiplexer (14) embeds additional information in each predetermined region of the resolution-converted image. A reference frame addition unit 15 adds a predetermined reference frame to the perimeter of the image in which the additional information is embedded. A printer (16) prints the image having the additional information embedded in it and the reference frame onto a printing medium, and outputs a printed image (17).

    Abstract translation: 本发明是能够添加用于准确地指定印刷在打印介质上的图像区域的基准帧的图像处理装置。 图像形成单元(13)将用于打印的输入图像转换成预定分辨率的输入图像。 附加信息多路复用器(14)在分辨率转换图像的每个预定区域中嵌入附加信息。 参考帧添加单元15将预定参考帧添加到附加信息被嵌入的图像的周边。 打印机(16)将具有嵌入其中的附加信息的图像和参考帧打印到打印介质上,并输出打印图像(17)。

    Image processing apparatus and control method thereof
    8.
    发明授权
    Image processing apparatus and control method thereof 失效
    图像处理装置及其控制方法

    公开(公告)号:US07634153B2

    公开(公告)日:2009-12-15

    申请号:US12035863

    申请日:2008-02-22

    CPC classification number: G06T5/002 G06T5/20 G06T2207/20032

    Abstract: This invention provides an image processing apparatus which can effectively remove conspicuous noise contained in image data, while suppressing deterioration of image information. Image data containing noise is input from an input terminal (100). Based on the output condition upon outputting image data after noise is removed, a parameter determination module (103) determines predetermined parameters used in a noise removal process. An example of the output condition is information associated with a resolution upon outputting image data. An individual noise removal module (104) removes noise contained in the image data using the parameters, and image data after the noise has been removed is output from an output terminal (105).

    Abstract translation: 本发明提供一种图像处理装置,能够有效地消除图像数据中包含的显着噪声,同时抑制图像信息的劣化。 从输入端子(100)输入含有噪声的图像数据。 基于去除噪声之后输出图像数据的输出条件,参数确定模块(103)确定噪声去除处理中使用的预定参数。 输出条件的示例是在输出图像数据时与分辨率相关联的信息。 单独的噪声消除模块(104)使用参数去除包含在图像数据中的噪声,并且从输出端子(105)输出噪声已被去除之后的图像数据。

    Image processing apparatus and method
    9.
    发明授权
    Image processing apparatus and method 有权
    图像处理装置及方法

    公开(公告)号:US07177463B2

    公开(公告)日:2007-02-13

    申请号:US11297417

    申请日:2005-12-09

    Abstract: A surrounding pixel reference unit reads out and stores image data having a predetermined size from a line buffer. A color judgment unit detects the color of the image (reference image) stored in the surrounding pixel reference unit. A parameter determination unit determines parameters used in an individual noise removal unit on the basis of the color detected by the color judgment unit, and supplies them to the individual noise removal unit. The individual noise removal unit reads out, from the line buffer, an image which is located at the same position as that read out by the surrounding pixel reference unit and has a size according to the parameters supplied from the parameter determination unit, and executes a noise removal process for the readout image in accordance with the parameters supplied from the parameter determination unit.

    Abstract translation: 周围像素参考单元从行缓冲器读出并存储具有预定大小的图像数据。 颜色判断单元检测存储在周围像素参考单元中的图像(参考图像)的颜色。 参数确定单元基于由颜色判断单元检测到的颜色来确定单独噪声去除单元中使用的参数,并将其提供给各个噪声去除单元。 单独的噪声去除单元从行缓冲器读出与周围的像素参考单元读出的位置相同的位置的图像,并且具有根据从参数确定单元提供的参数的大小,并且执行 根据从参数确定单元提供的参数,读出图像的噪声去除处理。

    Embedding with error-correction encoding
    10.
    发明授权
    Embedding with error-correction encoding 有权
    嵌入纠错编码

    公开(公告)号:US07116826B2

    公开(公告)日:2006-10-03

    申请号:US10170358

    申请日:2002-06-14

    CPC classification number: G06T1/0092

    Abstract: A maximum embedding amount can be ensured depending on information to be embedded, by determining an error-correction capability in correspondence with the characteristic of embedded information. For this purpose, upon multiplexing additional information, the additional information is error-correction encoded. At this time, if the additional information is a BMP file, a WAV file or the like, coding is performed with a low error-correction capability since image reproduction can be made without serious problem even if the error-correction capability is low. The error-correction capability is determined by an error-correction parameter determination unit 205 based on an extension of the additional information.

    Abstract translation: 通过根据嵌入信息的特性确定纠错能力,可以根据要嵌入的信息确保最大嵌入量。 为此,在复用附加信息时,附加信息被纠错编码。 此时,如果附加信息是BMP文件,WAV文件等,则以低纠错能力进行编码,因为即使纠错能力低,也可以进行无严重问题的图像再现。 基于附加信息的扩展,由纠错参数确定单元205确定纠错能力。

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