Method and system for see-through image correction in image duplication
    42.
    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

    IPC分类号: G06F15/00 H04N1/00

    CPC分类号: H04N1/4095

    摘要: 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.

    摘要翻译: 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。

    Image processing method and image processing apparatus for converting an
inputted color image into a two-color image
    44.
    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分类号: H04N1/40012 H04N1/56

    摘要: 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.

    摘要翻译: 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。