Image processing apparatus, image processing method, and program
    12.
    发明授权
    Image processing apparatus, image processing method, and program 有权
    图像处理装置,图像处理方法和程序

    公开(公告)号:US08237991B2

    公开(公告)日:2012-08-07

    申请号:US12843537

    申请日:2010-07-26

    IPC分类号: G06T5/00 H04N1/407 H04N1/409

    摘要: In order to eliminate image deterioration based on the characteristics of an output device upon execution of edge emphasis processing, an image processing apparatus includes a setting unit which sets a print characteristic on the print medium, a region setting unit which sets a region, a brightness value derivation unit which derives brightness values, a first derivative derivation which derives first derivatives of the brightness values, an edge direction determination unit which determines an edge direction of brightness, an emphasis level determination unit which determines an emphasis level of a pixel value based on the first derivatives, and a replacement unit which calculates second derivatives of brightness values and replaces a pixel value of a pixel of interest based on the sign of the second derivative.

    摘要翻译: 为了在执行边缘加重处理时消除基于输出装置的特性的图像劣化,图像处理装置包括设置单元,其设置打印介质上的打印特性,设置区域的区域设置单元,亮度 导出亮度值的值导出单元,导出亮度值的一阶导数的一阶导数导出,确定亮度的边缘方向的边缘方向确定单元,基于以下步骤确定像素值的强调级别的强调级别确定单元: 第一导数,以及替换单元,其基于二次导数的符号来计算亮度值的二阶导数并替换感兴趣像素的像素值。

    Image processing apparatus and method for contrast processing and intermediate color removal
    14.
    发明授权
    Image processing apparatus and method for contrast processing and intermediate color removal 有权
    用于对比处理和中间色彩去除的图像处理装置和方法

    公开(公告)号:US08040569B2

    公开(公告)日:2011-10-18

    申请号:US11773716

    申请日:2007-07-05

    IPC分类号: G06T5/00

    CPC分类号: H04N1/4072 H04N1/4092

    摘要: This invention allows printing an image with less image deterioration with respect to a document including both text and an image. An image processing apparatus includes a pixel value acquisition unit which acquires a pixel value of a pixel as a target in an input digital image, and a pixel value correction/modification processing unit which executes a correction/modification process based on the pixel value of the pixel acquired by the pixel value acquisition unit. The pixel value correction/modification processing unit includes a contrast correcting unit which executes contrast correction based on information representing a brightness value corresponding to the pixel value of the pixel, and an intermediate color removing unit which removes intermediate color in the digital image by replacing the pixel value of the pixel by pixel values of pixels around that pixel.

    摘要翻译: 本发明允许相对于包括文本和图像的文档打印具有较少图像劣化的图像。 图像处理装置包括:像素值获取单元,其获取输入数字图像中的像素的像素值作为目标;以及像素值校正/修改处理单元,其基于所述像素值的像素值执行校正/修改处理 像素值获取单元获取的像素。 像素值校正/修正处理单元包括对比度校正单元,其基于表示与像素的像素值对应的亮度值的信息执行对比度校正,以及中间颜色去除单元,其通过将数字图像中的中间颜色替换 该像素周围像素的像素值的像素值。

    IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM
    16.
    发明申请
    IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM 有权
    图像处理设备,图像处理方法和程序

    公开(公告)号:US20080123150A1

    公开(公告)日:2008-05-29

    申请号:US11771168

    申请日:2007-06-29

    IPC分类号: G06K15/00

    摘要: In order to eliminate image deterioration based on the characteristics of an output device upon execution of edge emphasis processing, an image processing apparatus includes a setting unit which sets a print characteristic on the print medium, a region setting unit which sets a region, a brightness value derivation unit which derives brightness values, a first derivative derivation which derives first derivatives of the brightness values, an edge direction determination unit which determines an edge direction of brightness, an emphasis level determination unit which determines an emphasis level of a pixel value based on the first derivatives, and a replacement unit which calculates second derivatives of brightness values and replaces a pixel value of a pixel of interest based on the sign of the second derivative.

    摘要翻译: 为了在执行边缘加重处理时消除基于输出装置的特性的图像劣化,图像处理装置包括设置单元,其设置打印介质上的打印特性,设置区域的区域设置单元,亮度 导出亮度值的值导出单元,导出亮度值的一阶导数的一阶导数导出,确定亮度的边缘方向的边缘方向确定单元,基于以下步骤确定像素值的强调级别的强调级别确定单元: 第一导数,以及替换单元,其基于二次导数的符号来计算亮度值的二阶导数并替换感兴趣像素的像素值。

    IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM
    17.
    发明申请
    IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM 有权
    图像处理设备,图像处理方法和程序

    公开(公告)号:US20080007785A1

    公开(公告)日:2008-01-10

    申请号:US11773716

    申请日:2007-07-05

    IPC分类号: H04N1/40 G06K15/02

    CPC分类号: H04N1/4072 H04N1/4092

    摘要: This invention allows printing an image with less image deterioration with respect to a document including both text and an image. An image processing apparatus includes a pixel value acquisition unit which acquires a pixel value of a pixel as a target in an input digital image, and a pixel value correction/modification processing unit which executes a correction/modification process based on the pixel value of the pixel acquired by the pixel value acquisition unit. The pixel value correction/modification processing unit includes a contrast correcting unit which executes contrast correction based on information representing a brightness value corresponding to the pixel value of the pixel, and an intermediate color removing unit which removes intermediate color in the digital image by replacing the pixel value of the pixel by pixel values of pixels around that pixel.

    摘要翻译: 本发明允许相对于包括文本和图像的文档打印具有较少图像劣化的图像。 图像处理装置包括:像素值获取单元,其获取输入数字图像中的像素的像素值作为目标;以及像素值校正/修改处理单元,其基于所述像素值的像素值执行校正/修改处理 像素值获取单元获取的像素。 像素值校正/修正处理单元包括对比度校正单元,其基于表示与像素的像素值对应的亮度值的信息执行对比度校正,以及中间颜色去除单元,其通过将数字图像中的中间颜色替换 该像素周围像素的像素值的像素值。

    IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND IMAGE PROCESSING PROGRAM
    18.
    发明申请
    IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND IMAGE PROCESSING PROGRAM 有权
    图像处理设备,图像处理方法和图像处理程序

    公开(公告)号:US20080002901A1

    公开(公告)日:2008-01-03

    申请号:US11769801

    申请日:2007-06-28

    IPC分类号: G06K9/40

    摘要: There is provided an image processing apparatus for applying an adjusting process to an image including multicolor image signals. An image area including a pixel to be processed is extracted, and one representative signal value is generated from signal values corresponding to a plurality of colors of pixels included in the image area (S2501). A feature amount associated with the image area is calculated based on the representative signal value (S2503, S2505, S2511), and a substitute candidate pixel common to the plurality of colors is selected from the image area based on the calculated feature amount (S2512). Signal values of the pixel to be processed are substituted by new pixel values, which are calculated from the signal values of the pixel to be processed and signal values of the substitute candidate pixel.

    摘要翻译: 提供了一种用于对包括多色图像信号的图像应用调整处理的图像处理装置。 提取包括要处理的像素的图像区域,并且从对应于包括在图像区域中的多个像素颜色的信号值生成一个代表信号值(S 2501)。 基于代表信号值计算与图像区域相关联的特征量(S 2503,S 2505,S 2511),并且基于计算出的特征量从图像区域中选择与多种颜色共同的替代候选像素 (S2512)。 要处理的像素的信号值被新的像素值代替,其由要处理的像素的信号值和替代候选像素的信号值计算。