SIMULATED PAPER TEXTURE USING CLEAR TONER AND GLOSSMARK ON TEXTURE-LESS STOCK
    51.
    发明申请
    SIMULATED PAPER TEXTURE USING CLEAR TONER AND GLOSSMARK ON TEXTURE-LESS STOCK 有权
    模拟纸张纹理使用清晰的色调和光标在纹理不足的库存

    公开(公告)号:US20130022753A1

    公开(公告)日:2013-01-24

    申请号:US13185565

    申请日:2011-07-19

    IPC分类号: B05D1/06 B05C11/00

    CPC分类号: G03G15/6585

    摘要: A method includes receiving a primary image as input data and receiving textured image data for rendering a perceived non-uniform texture on a printed output of the primary image. The primary image input data is used for determining a low coverage portion and a high coverage portion. The method then includes applying clear toner to the low coverage portion and applying colored toner at variable anisotropic orientations to the high coverage portion.

    摘要翻译: 一种方法包括:接收主图像作为输入数据,并接收纹理图像数据,用于在主图像的打印输出上呈现感知到的不均匀纹理。 主图像输入数据用于确定低覆盖部分和高覆盖部分。 该方法然后包括向低覆盖部分施加透明调色剂,并将可变各向异性的着色调色剂施加到高覆盖部分。

    Security marks simulating natural defects for embedding information in documents
    52.
    发明授权
    Security marks simulating natural defects for embedding information in documents 有权
    模拟在文档中嵌入信息的自然缺陷的安全标记

    公开(公告)号:US08056821B2

    公开(公告)日:2011-11-15

    申请号:US11582813

    申请日:2006-10-18

    IPC分类号: G06K19/06

    摘要: A system for generating a security mark includes a data reception component that receives information. A security mark generation component in communication with the data reception component generates at least one security mark configuration based at least in part upon the received information. The at least one security mark configuration includes at least one simulation mark which resembles a natural feature. An application component applies one configuration of the at least one security mark configurations to a recipient. The applied security mark configuration obeys at least one rule whereby the security mark is distinguishable from the natural feature which it resembles by a system for detection of security marks.

    摘要翻译: 用于生成安全标记的系统包括接收信息的数据接收部件。 与数据接收组件通信的安全标记生成组件至少部分地基于所接收的信息来生成至少一个安全标记配置。 所述至少一个安全标记配置包括至少一个类似于自然特征的模拟标记。 应用组件将至少一个安全标记配置的一个配置应用于接收者。 应用的安全标记配置遵循至少一个规则,其中安全标记与其由用于检测安全标记的系统类似的自然特征区分开。

    Method of embedding color information in printed documents using watermarking
    53.
    发明授权
    Method of embedding color information in printed documents using watermarking 失效
    使用水印嵌入打印文档中的颜色信息的方法

    公开(公告)号:US07515732B2

    公开(公告)日:2009-04-07

    申请号:US11034131

    申请日:2005-01-12

    IPC分类号: G06K9/00 G06K9/46 G06K9/40

    摘要: A method for enhancing color fidelity in multi-reproduction, includes scanning an image to be reproduced, wherein the image contains an invisible digital watermark including color information; decoding the color information contained in the watermark; comparing the decoded color information with the scanned image; generating a correction table from the differences between the decoded color information and the scanned image; and performing color correction on the scanned image using the correction table. This method confines the color error to one generation, even when copies go through multiple reproduction.

    摘要翻译: 一种用于增强多重再现中的色彩保真度的方法,包括扫描要再现的图像,其中图像包含包含颜色信息的不可见数字水印; 对包含在水印中的颜色信息进行解码; 将解码的颜色信息与扫描图像进行比较; 从解码的颜色信息和扫描图像之间的差异产生校正表; 并使用校正表对扫描图像执行颜色校正。 这种方法将颜色误差限制在一代,即使拷贝经过多重再现。

    COLOR PRINTER CHARACTERIZATION OR CALIBRATION TO CORRECT FOR SPATIAL NON-UNIFORMITY
    56.
    发明申请
    COLOR PRINTER CHARACTERIZATION OR CALIBRATION TO CORRECT FOR SPATIAL NON-UNIFORMITY 有权
    彩色打印机的特征或校准来校正空间非均匀性

    公开(公告)号:US20080239344A1

    公开(公告)日:2008-10-02

    申请号:US11694960

    申请日:2007-03-31

    IPC分类号: G06K15/00

    摘要: Methods and systems are presented for calibrating or characterizing a color printer or determining the color response of a color printer to combat spatial non-uniformity, in which color patches are printed on a test page according to an input matrix of input color in a printer-dependent-color space and the test page is measured to provide a corresponding output matrix of output color in a printer-independent-color space. Initial forward and inverse color transforms between the input and the output colors are generated based on the input and the output matrices. The output values are mapped to the input color space based on the initial inverse transform to form a feedback matrix, and spatial non-uniformities present in the printed test page are estimated according to noise values derived from the input matrix and the feedback matrix. The input matrix is modified according to the estimated spatial non-uniformity to form a modified input matrix of input color, and final forward and inverse transforms are generated for the color printer according to the modified input matrix and the output matrix.

    摘要翻译: 呈现用于校准或表征彩色打印机的方法和系统,或者确定彩色打印机的颜色响应以对抗空间不均匀性,其中根据打印机的输入颜色的输入矩阵将色块打印在测试页上。 测量依赖颜色空间并测试测试页面,以在独立于打印机的颜色空间中提供输出颜色的相应输出矩阵。 基于输入和输出矩阵生成输入和输出颜色之间的初始正向和反向颜色变换。 基于初始反变换将输出值映射到输入颜色空间以形成反馈矩阵,并且根据从输入矩阵和反馈矩阵导出的噪声值来估计印刷测试页面中存在的空间非均匀性。 输入矩阵根据估计的空间不均匀性进行修改,形成输入颜色的修改输入矩阵,根据修改的输入矩阵和输出矩阵,为彩色打印机生成最终的正向和反向变换。

    METHOD FOR COHERENT WATERMARK INSERTION AND DETECTION IN COLOR HALFTONE IMAGES
    57.
    发明申请
    METHOD FOR COHERENT WATERMARK INSERTION AND DETECTION IN COLOR HALFTONE IMAGES 失效
    方法用于相关的水印插入和检测在彩色黑板图像

    公开(公告)号:US20080151311A1

    公开(公告)日:2008-06-26

    申请号:US11615407

    申请日:2006-12-22

    IPC分类号: H04N1/40

    摘要: A method for generating an authenticable color image, the color image including a plurality of color separations, wherein an authentication image inserted in the multicolor image is not readily visually perceptible, includes halftoning image data corresponding to a first color separation using a single halftone screen, wherein the halftone screen includes means for generating an authentication image in a color image; and halftoning image data corresponding to a second color separation using the halftone screen and dot placement information for the image data corresponding to the first color separation to form a multicolor image; wherein halftoning of image data corresponding to the second color separation includes placing dots for the second color separation in thresholds of the halftone screen relative to those thresholds occupied by the first color separation in the halftone screen in accordance with a predetermined relationship.

    摘要翻译: 一种用于生成可认证彩色图像的方法,所述彩色图像包括多个分色,其中插入所述多色图像中的认证图像不容易在视觉上可感知,包括使用单个半色调屏幕对与第一颜色分离相对应的图像数据进行半色调, 其中所述半色调网屏幕包括用于在彩色图像中生成认证图像的装置; 以及使用所述半色调屏幕对应于第二颜色分离的图像数据和对应于所述第一颜色分离的所述图像数据的点布置信息进行半色调处理,以形成多色图像; 其中对应于所述第二颜色分离的图像数据的半色调包括根据预定关系在所述半色调屏幕中相对于所述半色调屏幕中的所述第一颜色分离占据的所述阈值,在所述半色调屏幕的阈值中放置用于所述第二颜色分离的点。

    System and method to automatically establish preferred area for image-wise watermark
    58.
    发明申请
    System and method to automatically establish preferred area for image-wise watermark 有权
    自动建立图像水印的优选区域的系统和方法

    公开(公告)号:US20070177759A1

    公开(公告)日:2007-08-02

    申请号:US11343668

    申请日:2006-01-31

    IPC分类号: G06K9/00

    摘要: A system and method are disclosed for determining preferred image locations for placing watermark information (both hidden and obvious). The disclosure includes at least three criteria (image similarity, contrast, and image value range) that may be used alone or in combination to determine a preferred area of the target image for placing the watermark depending upon the user's intent for the mark (hiding or showing watermark).

    摘要翻译: 公开了用于确定用于放置水印信息(隐藏和明显)的优选图像位置的系统和方法。 本公开包括至少三个标准(图像相似性,对比度和图像值范围),其可以单独使用或组合使用,以根据用户对标记的意图来确定用于放置水印的目标图像的优选区域(隐藏或 显示水印)。

    Stochastic screens for rendering devices with high-addressability
    59.
    发明申请
    Stochastic screens for rendering devices with high-addressability 审中-公开
    用于渲染具有高寻址能力的设备的随机屏幕

    公开(公告)号:US20060197992A1

    公开(公告)日:2006-09-07

    申请号:US11070078

    申请日:2005-03-02

    申请人: Shen-ge Wang

    发明人: Shen-ge Wang

    IPC分类号: H04N1/405

    CPC分类号: H04N1/52

    摘要: A stochastic dot-growth sequence for a stochastic screen can be initially compiled into two sections, including at least a first section and at least a section. Additional sections can be provided as necessary (e.g., third, fourth, etc.). The first section provides, for example, from 0% to 50% area coverage, while the section can provide an area coverage of between 50% and 100% depending upon design considerations. For the first section, the sequential values can be utilized to fill corresponding pixels of a “high addressability” stochastic screen. A similar process is then applied to the second section and additional sections, if necessary. In this manner, non-printable sub pixel issues can be avoided while providing improved color stability, smooth transitions, less noise and improved sharpness during rendering via a high addressability stochastic screen.

    摘要翻译: 随机屏幕的随机点生长序列最初可以被编译成两个部分,包括至少第一部分和至少一个部分。 可以根据需要提供额外的部分(例如,第三,第四等)。 第一部分提供例如0%至50%的面积覆盖率,而该部分可以根据设计考虑提供50%至100%之间的面积覆盖率。 对于第一部分,顺序值可用于填充“高寻址性”随机屏幕的相应像素。 然后,如果需要,将类似的过程应用于第二部分和附加部分。 以这种方式,可以通过高可寻址性随机屏幕提供不可打印的子像素问题,同时提供改进的颜色稳定性,平滑过渡,较少的噪声和改善的锐度。

    System and method for generating color digital watermarks using conjugate halftone screens
    60.
    发明授权
    System and method for generating color digital watermarks using conjugate halftone screens 有权
    使用共轭半色调屏幕生成彩色数字水印的系统和方法

    公开(公告)号:US06731409B2

    公开(公告)日:2004-05-04

    申请号:US09773004

    申请日:2001-01-31

    申请人: Shen-ge Wang

    发明人: Shen-ge Wang

    IPC分类号: H04N1419

    摘要: The present invention is directed to an improved method for producing color watermarks in digitally reproducible color documents. The color watermarks are generated by producing a halftone pattern, which appears as stochastically distributed dots, in at least one or more color separations of the color document. A second halftone pattern, which also appears as stochastically distributed dots and is spatially displaced from the first halftone pattern, is generated in at least one or more different color separations. Portions of the first and second halftone patterns are auto-correlated or conjugally correlated, therefore, when the two halftone patterns are laid over each other, watermark patterns of highly contrasting colors become markedly visible.

    摘要翻译: 本发明涉及一种用于在数字可再现的彩色文档中产生彩色水印的改进方法。 彩色水印通过在彩色文档的至少一个或多个分色中产生出现为随机分布的点的半色调图案而产生。 在至少一个或多个不同的分色中产生第二半色调图案,其也表现为随机分布的点并且从第一半色调图案空间位移。 第一和第二半色调图案的部分是自相关或共轭相关的,因此,当两个半色调图案彼此叠置时,高度对比色的水印图案变得显着可见。