Image processing apparatus and method for executing a process of error diffusion
    52.
    发明授权
    Image processing apparatus and method for executing a process of error diffusion 有权
    用于执行误差扩散处理的图像处理装置和方法

    公开(公告)号:US07855809B2

    公开(公告)日:2010-12-21

    申请号:US10725397

    申请日:2003-12-03

    IPC分类号: G06K15/00 G06K9/00

    CPC分类号: H04N1/4057 H04N1/52

    摘要: An image processing apparatus executes an error diffusion process to multivalue image data consisting of a plurality of density components. A first processor executes the error diffusion process by changing at least one of a quantization threshold value and a quantization diffusion coefficient which are used for the error diffusion process based on a value of the multivalue image data of the density components or a value calculated from the multivalue image data value. A second processor executes the error diffusion process by setting the quantization threshold value and the quantization diffusion coefficient which are used for the error diffusion process into fixed values. An error diffusion processing controller controls to execute the error diffusion process to at least one color among the density components by the first processor and execute the error diffusion process to other density components by the second processor.

    摘要翻译: 图像处理装置执行误差扩散处理以多值化由多个密度分量组成的图像数据。 第一处理器通过根据密度分量的多值图像数据的值或根据该密度分量计算的值改变用于误差扩散处理的量化阈值和量化扩散系数中的至少一个来执行误差扩散处理 多值图像数据值。 第二处理器通过将用于误差扩散处理的量化阈值和量化扩散系数设置为固定值来执行误差扩散处理。 误差扩散处理控制器控制由第一处理器对密度分量中的至少一种颜色执行误差扩散处理,并且通过第二处理器对其它浓度分量执行误差扩散处理。

    IMAGE SUPPLY DEVICE, CONTROL METHOD OF THE DEVICE, AND PRINTING SYSTEM
    53.
    发明申请
    IMAGE SUPPLY DEVICE, CONTROL METHOD OF THE DEVICE, AND PRINTING SYSTEM 有权
    图像提供装置,装置的控制方法和打印系统

    公开(公告)号:US20100309520A1

    公开(公告)日:2010-12-09

    申请号:US12846229

    申请日:2010-07-29

    IPC分类号: G06F3/12

    摘要: In this invention, to enable printing of an image that has undergone an image process or print process complying with the desire of a user on an image supply device side, real object handles and virtual object handles are set to, of images to be supplied to the printing device, images that require a predetermined image process and remaining images, respectively. A print job including the object handle of a print target image is issued in accordance with a print instruction. If the handle of an image requested by the printing device in response to the issued print job is a virtual object handle, the predetermined image process is executed for image data corresponding to the handle, and the processed image data is supplied to the printing device.

    摘要翻译: 在本发明中,为了能够在图像供给装置一侧打印符合用户需要的图像处理或打印处理的图像,将真实对象手柄和虚拟对象手柄设置为要提供给图像的图像 打印设备,分别需要预定图像处理的图像和剩余图像。 根据打印指令来发布包括打印目标图像的对象句柄的打印作业。 如果打印装置响应所发出的打印作业请求的图像的句柄是虚拟对象句柄,则对与该句柄相对应的图像数据执行预定图像处理,并将处理的图像数据提供给打印装置。

    IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM
    54.
    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
    55.
    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
    56.
    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。

    Image processing apparatus, image processing method, program for implementing the method, and storage medium
    57.
    发明授权
    Image processing apparatus, image processing method, program for implementing the method, and storage medium 有权
    图像处理装置,图像处理方法,实现方法的程序和存储介质

    公开(公告)号:US07315395B2

    公开(公告)日:2008-01-01

    申请号:US10386907

    申请日:2003-03-12

    IPC分类号: H04N1/405

    CPC分类号: H04N1/52

    摘要: There is provided an image processing apparatus which enables high-speed processing with simplified multiplications and divisions even in the case of error diffusion comprised of a combination of processes of two or more colors. The image processing apparatus performs error diffusion on multivalued image data composed of a plurality of density components and outputs the result of the error diffusion. A plurality of error tables are stored in a storage device. One error table is selected from the plurality of error tables according to a density value of a first density component among the plurality of density components and a density value of at least one other density component when performing the error diffusion on the first density component. A CPU performs the error diffusion on the multivalued image data using the selected error table.

    摘要翻译: 提供了一种图像处理装置,即使在由两种或多种颜色的处理的组合构成的误差扩散的情况下,也能够以简化的乘法和除法进行高速处理。 图像处理装置对由多个密度分量组成的多值图像数据执行误差扩散,并输出误差扩散的结果。 多个错误表存储在存储装置中。 根据第一密度分量中的第一密度分量的密度值和在第一密度分量上执行误差扩散时的至少一个其它浓度分量的浓度值,从多个误差表中选择一个误差表。 CPU使用所选的错误表对多值图像数据执行错误扩散。

    Image processing apparatus, image processing method, and program
    58.
    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:US07312901B2

    公开(公告)日:2007-12-25

    申请号:US10387424

    申请日:2003-03-14

    IPC分类号: H04N1/405

    CPC分类号: H04N1/52

    摘要: In an image processing apparatus which performs an error diffusion process to multivalued image data consisting of plural density components and outputs a result of the error diffusion process, the process result from a first error diffusion unit performing the error diffusion process based on a density value of a first density component included in the plural density components or the process result from a second error diffusion unit performing the error diffusion process based on the density value of the first density component and a density value of at least one density component included in other density components is selected according to a predetermined condition. Thus, even in an image process is performed to a larger number of gradations, a high-speed process can be achieved with simple structure, and the error diffusion process can be effectively performed to a shift of dot apply positions.

    摘要翻译: 在对由多个浓度分量组成的多值图像数据进行误差扩散处理的图像处理装置中,输出误差扩散处理的结果,来自基于密度值的第一误差扩散单元进行误差扩散处理的处理结果 包含在多个密度分量中的第一密度分量或来自基于第一密度分量的密度值执行误差扩散处理的第二误差扩散单元的处理结果和包括在其它密度分量中的至少一个密度分量的密度值 根据预定条件选择。 因此,即使对更大数量的灰度进行图像处理,也可以以简单的结构实现高速处理,并且可以有效地进行点施加位置的偏移的误差扩散处理。

    Image processing method and apparatus
    59.
    发明授权
    Image processing method and apparatus 有权
    图像处理方法和装置

    公开(公告)号:US07274491B2

    公开(公告)日:2007-09-25

    申请号:US10368592

    申请日:2003-02-20

    IPC分类号: H04N1/40

    CPC分类号: H04N1/608 H04N1/6027

    摘要: Upon outputting halftone image data to an output device, density transformation is prevalently done to improve image quality. Density transformation corresponds to linear gamma correction, and cannot correct any color fog and the like of a photo image. Hence, lightness/color difference information of halftone image data is acquired on the basis of low-frequency components of frequency data obtained by transforming halftone image data into spatial frequency components, and a lightness/color difference transform amount of the halftone image data is set on the basis of the acquired lightness/color difference information.

    摘要翻译: 将半色调图像数据输出到输出装置时,通常会进行浓度变换以提高图像质量。 密度变换对应于线性伽马校正,不能校正照片图像的任何色雾等。 因此,基于通过将半色调图像数据变换为空间频率分量而获得的频率数据的低频分量来获取半色调图像数据的亮度/色差信息,并且设置半色调图像数据的亮度/色差变换量 基于获得的亮度/色差信息。