Method and system for see-through image correction in image duplication
    64.
    发明授权
    Method and system for see-through image correction in image duplication 失效
    图像复制中透视图像校正的方法和系统

    公开(公告)号:US07064863B2

    公开(公告)日:2006-06-20

    申请号:US09847192

    申请日:2001-05-02

    CPC classification number: H04N1/4095

    Abstract: To solve problems associated with undesirable duplication of see-through back image in a double-sided input document, a method of and a system for substantially eliminating the undesirable see-through back images initially scanns a front side image and a back side image from the double-sided document and store the scanned images. The front side image has portions, and some of the portions include an original front image as well as a see-through back image from the back side image. An edge amount for each of the portions is determined in the front side image. The see-through back images are separated from the original front images based upon the edge amount. To further improve the correct removal of the undesired see-through back image, the above processed portions having a certain edge are smoothed. Character portions and dot pattern portions are further separated from background portions in the smoothed data. Finally, the intensity level of the character portions, the dot pattern portions and the background portions are adjusted by a corresponding predetermined conversion function so as to substantially eliminate the see-through back image.

    Abstract translation: 为了解决与双面输入文档中的透视背景图像的不期望的重复相关的问题,基本上消除不期望的透视背面图像的方法和系统最初扫描来自图像的前侧图像和背面图像 双面文档并存储扫描图像。 前侧图像具有部分,并且一些部分包括原始正面图像以及来自背面图像的透视后部图像。 在前侧图像中确定每个部分的边缘量。 基于边缘量,透视后的图像与原始前部图像分离。 为了进一步改善不期望的透明背景图像的正确去除,上述具有一定边缘的处理部分被平滑化。 字符部分和点图案部分在平滑数据中与背景部分进一步分离。 最后,通过相应的预定转换功能来调整字符部分,点图形部分和背景部分的强度水平,以便基本上消除透视背景图像。

    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.

    Image processing method and image processing apparatus for converting an
inputted color image into a two-color image
    68.
    发明授权
    Image processing method and image processing apparatus for converting an inputted color image into a two-color image 失效
    用于将输入的彩色图像转换成双色图像的图像处理方法和图像处理装置

    公开(公告)号:US5740333A

    公开(公告)日:1998-04-14

    申请号:US428990

    申请日:1995-04-26

    CPC classification number: H04N1/40012 H04N1/56

    Abstract: With the present invention, an inputted color image is separated to image signals for three colors of Red, Green and Blue, determination is made as to whether a remarked pixel is for a specified color or not according to the image signals for the separated three colors, brightness data for the inputted color image is detected, determination is made as to whether a remarked pixel is for a white color or a black color depending on the detected brightness data, a pixel determined as for a specified color is converted to a specified color, and a pixel determined as not for a specified color is converted to a white color or a black color according to a result of determination as to whether the remarked pixel is for a white color or a black color, so that a separation area for a specified color can clearly be defined.

    Abstract translation: 利用本发明,将输入的彩色图像分离成红色,绿色和蓝色三种颜色的图像信号,根据分离的三种颜色的图像信号确定是否为特定颜色指定颜色 ,检测输入的彩色图像的亮度数据,根据检测到的亮度数据确定是否针对白色或黑色表示的像素,将针对指定颜色确定的像素转换为指定的颜色 并且根据关于该标记像素是白色还是黑色的确定结果将被确定为不是针对指定颜色的像素转换为白色或黑色,从而使得用于 指定的颜色可以明确定义。

    Folding-order image forming apparatus
    69.
    发明授权
    Folding-order image forming apparatus 失效
    折叠式图像形成装置

    公开(公告)号:US5231516A

    公开(公告)日:1993-07-27

    申请号:US798082

    申请日:1991-11-22

    CPC classification number: H04N1/32464 H04N1/32358 H04N1/3873 H04N2201/3288

    Abstract: In a folding-order image forming apparatus, image data provided by reading an original image are stored to a page memory. When a copy is made in an electrostatic photographic process in accordance with the image data, the read image data are processed to divide the original image into a plurality of divisional images. Required images with respect to the divisional images are rotated, rearranged and outputted by the operation of a page memory control circuit in accordance with a divisional number of a recording image, etc. Thus, the images are formed in an opening shape by folding or cutting a sheet of recording paper along a divisional boundary of images thereon. The image forming apparatus generally has an image signal memory for storing a digital image signal, a memory region controller for controlling an operation of the image signal memory in a memory region thereof and an image rotational processor for rotating an image by judging the necessity of rotational processing of an image every memory region of the image signal memory.

    Abstract translation: 在折叠图像形成装置中,通过读取原始图像提供的图像数据被存储到页面存储器。 当根据图像数据在静电摄影处理中进行复制时,处理读取的图像数据以将原始图像划分成多个分割图像。 根据记录图像的分割数等,通过页面存储器控制电路的操作来旋转,重新排列和输出关于分割图像的所需图像。因此,通过折叠或切割将图像形成为开口形状 沿其上的图像的分界线的一张记录纸。 图像形成装置通常具有用于存储数字图像信号的图像信号存储器,用于控制其存储区域中的图像信号存储器的操作的存储器区域控制器和用于通过判断旋转的必要性来旋转图像的图像旋转处理器 在图像信号存储器的每个存储区域处理图像。

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