公开(公告)号：US20050271265A1

公开(公告)日：2005-12-08

申请号：US10861855

申请日：2004-06-04

申请人： Shen-Ge Wang ,  Reiner Eschbach ,  Gaurav Sharma

发明人： Shen-Ge Wang ,  Reiner Eschbach ,  Gaurav Sharma

IPC分类号： G06K9/20 ,  G06K9/34 ,  G06K9/46 ,  G06K9/62

CPC分类号： G06K9/00456

摘要： A method for automatically classifying a printed image, includes scanning the printed image; selecting an n by n block of pixels from the scanned image; calculating an array of DCT coefficients of the pixel block, wherein the array of calculated DCT coefficients are representative of spatial frequency and spatial orientation of the pixel block; comparing the DCT coefficients with an array of predetermined values, wherein the array of predetermined values are indicative of different image marking processes used to produce printed images; and determining an image marking process used to create the printed image based on the comparison of the DCT coefficients with the array of predetermined values. The array of DCT coefficients may be sampled into a feature set and the feature set provided to a neural network to output the determined image marking process.

摘要翻译： 一种用于自动分类打印图像的方法，包括扫描印刷图像; 从扫描图像中选择n×n个像素块; 计算所述像素块的DCT系数的阵列，其中所计算的DCT系数的阵列代表所述像素块的空间频率和空间取向; 将DCT系数与预定值的阵列进行比较，其中预定值的阵列指示用于产生打印图像的不同图像标记处理; 以及基于DCT系数与预定值的阵列的比较来确定用于创建打印图像的图像标记处理。 DCT系数的阵列可以被采样到特征集中，并且将特征集提供给神经网络以输出确定的图像标记过程。

公开(公告)号：US07272261B2

公开(公告)日：2007-09-18

申请号：US10861855

申请日：2004-06-04

申请人： Shen-Ge Wang ,  Reiner Eschbach ,  Gaurav Sharma

发明人： Shen-Ge Wang ,  Reiner Eschbach ,  Gaurav Sharma

IPC分类号： G06K9/62

CPC分类号： G06K9/00456

摘要： A method for automatically classifying a printed image, includes scanning the printed image; selecting an n by n block of pixels from the scanned image; calculating an array of DCT coefficients of the pixel block, wherein the array of calculated DCT coefficients are representative of spatial frequency and spatial orientation of the pixel block; comparing the DCT coefficients with an array of predetermined values, wherein the array of predetermined values are indicative of different image marking processes used to produce printed images; and determining an image marking process used to create the printed image based on the comparison of the DCT coefficients with the array of predetermined values. The array of DCT coefficients may be sampled into a feature set and the feature set provided to a neural network to output the determined image marking process.

摘要翻译： 一种用于自动分类打印图像的方法，包括扫描印刷图像; 从扫描图像中选择n×n个像素块; 计算所述像素块的DCT系数的阵列，其中所计算的DCT系数的阵列代表所述像素块的空间频率和空间取向; 将DCT系数与预定值的阵列进行比较，其中预定值的阵列指示用于产生打印图像的不同图像标记处理; 以及基于DCT系数与预定值的阵列的比较来确定用于创建打印图像的图像标记处理。 DCT系数的阵列可以被采样到特征集中，并且将特征集提供给神经网络以输出确定的图像标记过程。

公开(公告)号：US08345314B2

公开(公告)日：2013-01-01

申请号：US12276851

申请日：2008-11-24

申请人： Shen-Ge Wang ,  Reiner Eschbach ,  William A. Fuss

发明人： Shen-Ge Wang ,  Reiner Eschbach ,  William A. Fuss

IPC分类号： H04N1/40

CPC分类号： H04N1/4058 ,  H04N1/00867 ,  H04N1/0087 ,  H04N1/00883 ,  H04N1/32208 ,  H04N1/32251 ,  H04N1/32256 ,  H04N1/32309

摘要： Disclosed are methods/systems to embed a watermark into a contone image. Specifically, the disclosed methods and systems spatially modulate a contone image substantially adjacent a watermark area according to a first polarization and spatially modulate the contone image substantially within the watermark area according to a second polarization. These spatially modulated images may then be subsequently processed, stored, communicated and/or rendered.

摘要翻译： 公开了将水印嵌入到连续色调图像中的方法/系统。 具体地，所公开的方法和系统根据第一偏振空间地调制基本上与水印区域相邻的连续色调图像，并且根据第二偏振基本上在水印区域内空间调制连续色调图像。 随后可以对这些空间调制图像进行处理，存储，传送和/或渲染。

公开(公告)号：US07800785B2

公开(公告)日：2010-09-21

申请号：US11754733

申请日：2007-05-29

申请人： Raja Bala ,  Reiner Eschbach ,  Shen-Ge Wang ,  Yonghui Zhao

发明人： Raja Bala ,  Reiner Eschbach ,  Shen-Ge Wang ,  Yonghui Zhao

IPC分类号： H04N1/405

CPC分类号： B41M3/144

摘要： The teachings as provided herein relate to a watermark embedded in an image, and methodology for same, that has the property of being relatively indecipherable under normal light, and yet decipherable under UV light. This fluorescent mark comprises a substrate containing optical brightening agents, and a first dot design printed as an image upon the substrate. The first dot design has as a characteristic, the property of strongly suppressing substrate fluorescence. A second dot design having a property of providing a differing level of substrate fluorescence suppression from that of the first dot design such that when rendered in close spatial proximity with the first dot design image print, the resultant image rendered substrate suitably exposed to an ultra-violet light source, will yield a discernable image evident as a fluorescent mark.

摘要翻译： 本文提供的教导涉及嵌入在图像中的水印及其方法，其具有在正常光线下相对不可破译的性质，并且在UV光下可解码。 该荧光标记包括含有荧光增白剂的基材和在基材上作为图像印刷的第一点设计。 第一个点设计具有强烈抑制底物荧光的特性。 具有提供与第一点设计不同程度的底物荧光抑制的性质的第二点设计，使得当与第一点设计图像打印紧密地空间接近时，所得到的图像渲染衬底适当地暴露于超 紫色光源，将产生明显的可辨别图像作为荧光标记。

公开(公告)号：US20100150433A1

公开(公告)日：2010-06-17

申请号：US12336601

申请日：2008-12-17

申请人： Shen-Ge Wang ,  Reiner Eschbach ,  William A. Fuss ,  Farzin Blurfrushan ,  Edward Chapman

发明人： Shen-Ge Wang ,  Reiner Eschbach ,  William A. Fuss ,  Farzin Blurfrushan ,  Edward Chapman

IPC分类号： G06K9/00 ,  H04N1/40 ,  G06K9/32

CPC分类号： H04N1/00864

摘要： A variable data pantograph is formed by receiving a variable data string and retrieving at least one character representation from a vocabulary of character representations stored in memory. The retrieved at least one character representation corresponds to the variable data string. Each of the character representations in the vocabulary is associated with a foreground region including a character shape and a background region suitably sized and arranged for encompassing the foreground region. The background region incorporates a first pattern of elements and is controlled to render a target color using a first set of color separation control data and the foreground region incorporates a second pattern of elements and is controlled to render the target color using a second set of color separation control data. The retrieved at least one character representation is assembled to form a variable data pantograph, whereby when the variable data pantograph is rendered in an original document, the foreground and background regions are similar in tone, the foreground and background regions being substantially less similar in tone in a copy of the original document to render the character visible.

摘要翻译： 通过接收可变数据串并从存储在存储器中的字符表示的词汇表检索至少一个字符表示形成可变数据缩放仪。 检索到的至少一个字符表示对应于可变数据串。 词汇表中的每个字符表示与包括字符形状和背景区域的前景区域相关联，前景区域适当地设置和布置以包围前景区域。 背景区域包含元件的第一图案并且被控制以使用第一组颜色分离控制数据呈现目标颜色，并且前景区域包含第二图案元素并被控制以使用第二组颜色呈现目标颜色 分离控制数据。 检索到的至少一个字符表示被组合以形成可变数据缩放仪，由此当在原始文档中呈现可变数据缩放仪时，前景和背景区域的色调相似，前景和背景区域在色调上基本上不太相似 在原始文件的副本中呈现角色可见。

公开(公告)号：US07590298B2

公开(公告)日：2009-09-15

申请号：US11402602

申请日：2006-04-12

申请人： Zhigang Fan ,  Ricardo de Queiroz ,  Reiner Eschbach ,  Shen-Ge Wang

发明人： Zhigang Fan ,  Ricardo de Queiroz ,  Reiner Eschbach ,  Shen-Ge Wang

IPC分类号： G06K9/46

CPC分类号： H04N19/86 ,  H04N19/117 ,  H04N19/136 ,  H04N19/18 ,  H04N19/63 ,  H04N19/80

摘要： A process for improving the reconstruction of images compressed by the wavelet-based JPEG2000 specification. The basic reconstruction is followed by an edge-preserving filter (such as a sigma filter), another transform to the wavelet domain, an adjustment in the wavelet domain to yield the same quantized values as the compressed input image, and, finally, an inverse wavelet transform to yield the improved image. The process reduces the artifacts in sharp text and graphics documents, yielding images that would otherwise require larger files.

摘要翻译： 一种改进基于小波JPEG2000规范压缩图像重建的过程。 基本重建之后是边缘保留滤波器（如西格玛滤波器），另一个转换为小波域，小波域中的调整产生与压缩输入图像相同的量化值，最后是反向 小波变换产生改进的图像。 该过程减少了锐利文本和图形文档中的伪影，产生了否则将需要较大文件的图像。

公开(公告)号：US20080299333A1

公开(公告)日：2008-12-04

申请号：US11754702

申请日：2007-05-29

申请人： Raja Bala ,  Reiner Eschbach ,  Shen-Ge Wang ,  Yonghui Zhao

发明人： Raja Bala ,  Reiner Eschbach ,  Shen-Ge Wang ,  Yonghui Zhao

IPC分类号： B44F1/00

CPC分类号： B42D25/387 ,  B41M3/144 ,  B42D25/00 ,  B42D25/29 ,  B42D25/333 ,  Y10T428/24802

摘要： The teachings as provided herein relate to a watermark embedded in an image that has the property of being relatively indecipherable under normal light, and yet decipherable under UV light. This fluorescent mark comprises a substrate containing optical brightening agents, and a first dot design printed as an image upon the substrate. The first dot design has as a characteristic the property of strongly suppressing substrate fluorescence. A second dot design having a property of providing a differing level of substrate fluorescence suppression from that of the first dot design such that when rendered in close spatial proximity with the first dot design image print, the resultant image rendered substrate suitably exposed to an ultra-violet light source, will yield a discernable image evident as a fluorescent mark.

摘要翻译： 本文提供的教导涉及嵌入在图像中的水印，其具有在正常光线下相对不可解译的性质，并且在UV光下可解码。 该荧光标记包括含有荧光增白剂的基材和在基材上作为图像印刷的第一点设计。 第一个点设计具有强烈抑制底物荧光的特性。 具有提供与第一点设计不同程度的底物荧光抑制的性质的第二点设计，使得当与第一点设计图像打印紧密地空间接近时，所得到的图像渲染衬底适当地暴露于超 紫色光源，将产生明显的可辨别图像作为荧光标记。

公开(公告)号：US20090180152A1

公开(公告)日：2009-07-16

申请号：US12013664

申请日：2008-01-14

申请人： Raja Bala ,  Shen-Ge Wang ,  Reiner Eschbach

发明人： Raja Bala ,  Shen-Ge Wang ,  Reiner Eschbach

IPC分类号： H04K1/00 ,  G06K9/00

CPC分类号： H04N1/44 ,  H04N1/387 ,  H04N1/405 ,  H04N1/4055 ,  H04N1/52

摘要： A method for encryption of a digital watermark by intelligent halftoning includes receiving image data that define at least a portion of a document to be printed in terms of at least three halftone images corresponding respectively to three printing colorants, each of the three halftone images comprising a plurality of halftone cells. The image data are modified by phase-shifting some of the halftone cells of at least one of the halftone images relative to the other halftone images to encode a watermark within the portion of the document such that the at least one phase-shifted halftone image includes a phase-shifted region and a non-phase-shifted region. The modified image data are used to print the portion of the document on a substrate that will fluoresce when subjected to UV illumination. The printed portion of the document includes a first printed pattern resulting from the phase-shifted region and a second printed pattern resulting from the non-phase-shifted region. The first and second patterns of the printed portion of the document appear substantially similar when the portion of the document is viewed in visible light, and appear dissimilar when the portion of the document is viewed in UV light such that the watermark encoded in the modified image data is perceptible when the portion of the document is viewed in UV light and is hidden when the portion of the document is viewed in visible light.

摘要翻译： 通过智能半色调对数字水印进行加密的方法包括接收图像数据，该图像数据限定要分别对应于三个打印着色剂的至少三个半色调图像要打印的文档的至少一部分，三个半色调图像中的每一个包括一个 多个半色调细胞。 图像数据通过相对于其他半色调图像相移至少一个半色调图像的半色调单元来对文档的该部分内的水印进行相位改变，使得至少一个相移半色调图像包括 相移区域和非相移区域。 经修改的图像数据用于将文档的部分打印在经受UV照射时将发荧光的基底上。 文档的打印部分包括由相移区域产生的第一印刷图案和由非相移区域产生的第二印刷图案。 当文件的部分在可见光中观看时，文档的打印部分的第一和第二图案看起来基本相似，并且当在UV光中观看文档的部分时，显示不相似，使得编码在修改图像中的水印 当文档的部分在紫外光下观看时，数据是可感知的，并且当在可见光中观看文档的部分时，数据被隐藏。

公开(公告)号：US07433539B2

公开(公告)日：2008-10-07

申请号：US10993852

申请日：2004-11-19

申请人： Shen-Ge Wang ,  Zhigang Fan ,  Reiner Eschbach

发明人： Shen-Ge Wang ,  Zhigang Fan ,  Reiner Eschbach

IPC分类号： G06K9/40 ,  G06K9/32

CPC分类号： H04N1/4097

摘要： A method for run-time streak removal from a scanned image includes providing a scan line of image data from the scanned image; detecting corrupted data within the scan line; evaluating image data located in a neighborhood before and after the corrupted data on the scan line; if the evaluated image data in the neighborhood is smooth, replacing the corrupted data with image data determined by a linear interpolation process; and else if the evaluated image data in the neighborhood is not smooth, replacing the corrupted data with image data determined by the linear prediction process. Various techniques can be used to evaluate the image data located in the surrounding neighborhood. For example, a filter selection step may be used based on prediction discrepancies.

摘要翻译： 从扫描图像中去除运行时间条纹的方法包括从扫描图像提供图像数据的扫描线; 检测扫描线内的损坏的数据; 评估位于扫描线上的损坏数据之前和之后的邻域中的图像数据; 如果附近的评估图像数据平滑，则用由线性内插处理确定的图像数据替换损坏的数据; 否则如果附近的评估图像数据不平滑，则用由线性预测处理确定的图像数据替换损坏的数据。 可以使用各种技术来评估位于周边地区的图像数据。 例如，可以基于预测差异来使用滤波器选择步骤。

公开(公告)号：US07391537B2

公开(公告)日：2008-06-24

申请号：US10952413

申请日：2004-09-28

申请人： Reiner Eschbach ,  Shen-Ge Wang ,  William A. Fuss

发明人： Reiner Eschbach ,  Shen-Ge Wang ,  William A. Fuss

IPC分类号： H04N1/405 ,  H04N1/387 ,  B41M3/10 ,  G06K15/14 ,  G06F3/048

CPC分类号： H04N1/4058 ,  H04N1/00838 ,  H04N1/00883 ,  H04N1/54

摘要： The present disclosure relates to providing a user interface for the effective generation of differential gloss images. The user is instructed to indicate the base primary image data, and the desired gloss image data. This data may be displayed for verification and position adjustment by superimposition of the gloss image data upon the base image data. In an alternative, the placement information may be inferred from the position of originals upon the scanner or copier platen and the result may or may not be displayed. By selectively applying halftones with different anisotropic structure orientation characteristics to the base primary image data as directed by the desired gloss image data, a differential gloss image file or hardcopy may be provided.

摘要翻译： 本公开涉及提供用于有效产生差异光泽图像的用户界面。 指示用户指示基本主要图像数据和所需的光泽图像数据。 可以通过将光泽图像数据叠加在基本图像数据上来显示该数据以进行验证和位置调整。 或者，可以从扫描仪或复印机台板上的原稿的位置推断放置信息，并且可以显示或不显示结果。 通过按照期望的光泽图像数据的指示，将具有不同各向异性结构取向特性的半色调选择性地应用于基本主图像数据，可以提供差异光泽图像文件或硬拷贝。