Coding and decoding method and device on multi-level image

    公开(公告)号:US06996278B2

    公开(公告)日:2006-02-07

    申请号:US10098413

    申请日:2002-03-18

    CPC classification number: H04N1/41

    Abstract: A coding and decoding method includes the step of a) classifying an input multi-level image into edge parts and non-edge parts according to edge degree thereof; b) coding the input multi-level image according to a coding scheme different between the edge parts and non-edge parts; and c) decoding coded data according to a linear interpolation scheme, a cubic-function convolution scheme or an interpolation scheme having smoothing performance for generating pixel values included in the non-edge part.

    Format convertible image processing system, and program
    5.
    发明授权
    Format convertible image processing system, and program 有权
    格式可转换图像处理系统和程序

    公开(公告)号:US07672004B2

    公开(公告)日:2010-03-02

    申请号:US11082897

    申请日:2005-03-18

    Abstract: An image processing system connects a plurality of clients to an image processing apparatus via a network. The image processing apparatus includes a reading device that reads an image of an original document and generates a prescribed image signal, an image data generating device that applies prescribed image processing to the image signal to generate image data, and a memory that stores the image data. A format converting device is provided to convert an image format of the image data selected from the memory by one of plurality of client apparatuses into a prescribed format in accordance with a format condition designated by the client apparatus. A delivering device is provided to deliver the image data to the client apparatus in the prescribed format.

    Abstract translation: 图像处理系统经由网络将多个客户机连接到图像处理装置。 图像处理装置包括读取原稿的图像并生成规定的图像信号的读取装置,对图像信号进行规定的图像处理以生成图像数据的图像数据生成装置以及存储图像数据的存储器 。 格式转换装置被提供以根据由客户机装置指定的格式条件将从存储器中选择的图像数据的图像数据的图像格式转换成规定的格式。 提供传送设备以将图像数据以规定的格式传送到客户端设备。

    Image processing method and apparatus and image forming apparatus for reducing moiré fringes in output image
    10.
    发明授权
    Image processing method and apparatus and image forming apparatus for reducing moiré fringes in output image 有权
    用于减少输出图像中的莫尔条纹的图像处理方法和装置和图像形成装置

    公开(公告)号:US07327495B2

    公开(公告)日:2008-02-05

    申请号:US10152850

    申请日:2002-05-23

    CPC classification number: G06T3/4023 G06T3/403 H04N1/40068 H04N1/4092

    Abstract: A spatial filter applies a modulation transfer function correction process so as to increase a number of bits of input image data. A high-resolution converter converts the image data into output image data having a density higher than a sampling density of the input image data. One of the spatial filter and the resolution converter processes the image data after the other of the spatial filter and the resolution converter has processed the image data A possibility of saturation of an output of the spatial filter is decreased, thereby decreasing generation of moiré in a saturation calculation.

    Abstract translation: 空间滤波器应用调制传递函数校正处理,以便增加输入图像数据的位数。 高分辨率转换器将图像数据转换成具有高于输入图像数据的采样密度的密度的输出图像数据。 空间滤波器和分辨率转换器中的一个在空间滤波器和分辨率转换器的另一个处理了图像数据之后处理图像数据。空间滤波器的输出的饱和的可能性减小,从而减少了在 饱和度计算。

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