SYSTEM AND METHOD FOR MANAGING DYNAMIC DOCUMENT REFERENCES

    公开(公告)号:US20070156768A1

    公开(公告)日:2007-07-05

    申请号:US11459371

    申请日:2006-07-24

    IPC分类号: G06F17/30

    CPC分类号: G06F17/2247 G06F17/2229

    摘要: Document fragments are managed by the use of fragment objects. Fragment objects contain a reference to a portion of a source document. Referencing documents contain a reference to a fragment object which delivers the content of the fragment of the source document to the referencing document. The source document can be directly updated through updating the fragment of the source document contained in the referencing document via the use of the fragment object. Source document deletion is controlled by storing the references to the source document by fragment objects so that no fragment object has a reference to a nonexistent source document. A process for organizing document fragments within a document management system wherein source documents comprise duplicates of the document fragments includes replacing a duplicate fragment with a reference to a single fragment object the fragment object including a reference to a fragment of a source document and an object class method for deletion of the fragment object including instructions to remove the reference to the fragment object from the metadata of the source document to which the fragment object refers.

    Systems and methods for generating threshold array halftone images with partial pixel position resolution

    公开(公告)号:US07119928B2

    公开(公告)日:2006-10-10

    申请号:US10046146

    申请日:2002-01-16

    IPC分类号: H04N1/405

    CPC分类号: G06K15/02 H04N1/4058 H04N1/52

    摘要: Systems and methods that shift the halftone screen relative to the image data in the low-addressability direction to compensate for misregistration would be useful. In various exemplary embodiments of the systems and methods of this invention, each pixel of the halftone cell is first divided into high-addressability pixels at the high-addressability factor. The high-addressability factor is the ratio between the base resolution and the high-addressability resolution. The high-addressability pixels are then divided into subrows using the same high-addressability factor. Each high-addressability pixel in each subrow is then assigned its own threshold value. By shifting the threshold values between adjacent subrows based on the subrow, a particular halftone pattern in the low-addressability direction is implemented. Then, by appropriately selecting the particular subrow to select a particular set of threshold values, the halftone screen can be shifted at the high-addressability resolution along the low-addressability direction.

    High-speed, high-quality descreening system and method
    69.
    发明授权
    High-speed, high-quality descreening system and method 失效
    高速,高品质的除网系统和方法

    公开(公告)号:US06864994B1

    公开(公告)日:2005-03-08

    申请号:US09488039

    申请日:2000-01-19

    IPC分类号: G06F15/00 G06K1/00 H04N1/40

    CPC分类号: H04N1/40075

    摘要: A system and method descreen halftone images into a continuous tone image while preserving edge detail and reducing initial image blur. The descreening can be applied to monochrome or color images. Descreening is achieved by first using a low pass filter to form a blurred image of the original, which is used to guide future image filtering, but which further filtering is applied to the original image. The intelligent filtering is provided by a Sigma filter, which can be performed in a single iteration and sized and shaped according to values of the blurred image. The system and method can take a block-oriented approach that performs analysis for an entire block of pixels rather than on individual pixels. This further improves the implementation speed of the process.

    摘要翻译: 系统和方法将屏幕半色调图像变成连续色调图像,同时保留边缘细节并减少初始图像模糊。 去网可以应用于单色或彩色图像。 通过首先使用低通滤波器来形成原始的模糊图像来实现去网格化,其用于引导未来的图像过滤,但是对原始图像进行进一步的滤波。 智能过滤由Sigma滤波器提供,其可以在单次迭代中执行,并根据模糊图像的值进行大小和形状。 系统和方法可以采用面向块的方法,对整个像素块而不是单个像素进行分析。 这进一步提高了进程的执行速度。

    Mapping from full color to highlight color and texture
    70.
    发明授权
    Mapping from full color to highlight color and texture 失效
    从全色映射到突出的颜色和纹理

    公开(公告)号:US06721069B1

    公开(公告)日:2004-04-13

    申请号:US09432058

    申请日:1999-10-28

    IPC分类号: G09G336

    摘要: A method of color image processing for mapping an input image from a full color gamut to a textured highlight color gamut includes defining an input color in a desired three dimensional color space by determining intensity values for a first color coordinate, a second color coordinate, and a third color coordinate. A halftone cell is partitioned into first and second regions such that the first region contains first pixels, and the second region contains second pixels. Based on the intensity values, a first number of first pixels are selected for rendering in a highlight color. The first number of first pixels are selected from all the first pixels in a first sequential order. Again based on the intensity values, a second number of first pixels are selected for rendering in a base color. This time the second number of first pixels are selected from all the first pixels in a second sequential order. Preferably, the second sequential order is opposite the first sequential order. Based on the intensity values, a first number of second pixels are selected for rendering in the highlight color with the first number of second pixels being selected from all the second pixels in a third sequential order. Also based on the intensity values, a second number of second pixels are selected for rendering in the base color, and the second number of second pixels are selected from all the second pixels in a fourth sequential order. Preferably, the fourth sequential order is opposite the third sequential order.

    摘要翻译: 一种用于将输入图像从全色域映射到纹理高亮色域的彩色图像处理方法包括通过确定第一颜色坐标,第二颜色坐标和第二颜色坐标的强度值来定义所需三维颜色空间中的输入颜色 第三个颜色坐标。 半色调单元被分割成第一和第二区域,使得第一区域包含第一像素,第二区域包含第二像素。 基于强度值,选择第一数量的第一像素用于以高亮颜色呈现。 以第一顺序从所有第一像素中选择第一数量的第一像素。 再次基于强度值,选择第二数量的第一像素用于渲染基色。 这次,第二数量的第一像素以第二顺序从所有第一像素中选出。 优选地,第二顺序与第一顺序相反。 基于强度值,选择第一数量的第二像素用于在高亮度颜色中渲染,其中第一数量的第二像素以第三顺序从所有第二像素中选择。 还基于强度值,选择第二数量的第二像素用于以基色进行渲染,并且以第四顺序从所有第二像素中选择第二数量的第二像素。 优选地,第四顺序与第三顺序相反。