公开(公告)号：US20110216968A1

公开(公告)日：2011-09-08

申请号：US12718297

申请日：2010-03-05

申请人： CLAUDE S. FILLION ,  Vishal Monga ,  Raja Bala

发明人： CLAUDE S. FILLION ,  Vishal Monga ,  Raja Bala

IPC分类号： G06K9/00

CPC分类号： G06K9/00

摘要： A system and method for resizing a digitally represented color image are presented. A color image with pixels defined by luminance and at least one chrominance value is received. For each pixel of the color image, a luminance spatial variation and respective chrominance spatial variations in the respective neighborhood of the each pixel are computed. The luminance spatial variation and the respective chrominance spatial variations are combined to produce a respective importance value for each pixel. Selected pixels are identified based upon their respective importance values and are removed by seam carving of the color image. The seam carving identifies seams of pixels based upon the respective importance values of pixels within the seams of pixels to create a resized color image. The resized color image is produced to an image output device.

摘要翻译： 提出了一种用于调整数字化颜色图像大小的系统和方法。 接收由亮度和至少一个色度值定义的像素的彩色图像。 对于彩色图像的每个像素，计算每个像素的相应邻域中的亮度空间变化和相应的色度空间变化。 亮度空间变化和相应的色度空间变化被组合以产生每个像素的相应重要性值。 基于它们各自的重要性值来识别所选择的像素，并且通过彩色图像的缝隙去除。 接缝雕刻基于像素接缝内的像素的相应重要性值来识别接缝像素，以产生调整大小的彩色图像。 调整大小的彩色图像被产生到图像输出装置。

公开(公告)号：US20100302594A1

公开(公告)日：2010-12-02

申请号：US12475748

申请日：2009-06-01

申请人： Edward Chapman ,  Hengzhou Ding ,  Reiner Eschbach ,  Raja Bala

发明人： Edward Chapman ,  Hengzhou Ding ,  Reiner Eschbach ,  Raja Bala

IPC分类号： G06K15/00 ,  G06K9/32

CPC分类号： G06T11/60

摘要： Systems and methods are described that facilitate real-time personalization of an electronic image by overlaying a text string on a planar surface of an object in the electronic image. A linear or affine transform is executed on a selected text string to position the text string in a reference rectangle or text box. A non-linear or projective transform is applied to the rectangular text box to project the box into a user-defined quadrilateral on the planar surface in the image. A page description language (PDL) file is generated and includes the transformed quadrilateral text box overlaid on the electronic image. At print-time, a database (e.g., a spreadsheet or the like) containing multiple text strings is read, once for each text string, and multiple images are printed. Each printed image has one of the text strings overlaid thereon, on the planar surface defined by the quadrilateral.

摘要翻译： 描述了通过将文本串叠加在电子图像中的对象的平面上来促进电子图像的实时个性化的系统和方法。 对所选文本字符串执行线性或仿射变换，以将文本字符串定位在引用矩形或文本框中。 将非线性或投影变换应用于矩形文本框，以将框投影到图像平面上的用户定义的四边形中。 生成页面描述语言（PDL）文件，并且包括覆盖在电子图像上的经变换的四边形文本框。 在打印时，读取包含多个文本串的数据库（例如，电子表格等），每个文本串一次，并且打印多个图像。 每个打印的图像在由四边形限定的平面上具有覆盖在其上的文本串中的一个。

公开(公告)号：US20100239162A1

公开(公告)日：2010-09-23

申请号：US12406303

申请日：2009-03-18

申请人： Vishal Monga ,  Raja Bala

发明人： Vishal Monga ,  Raja Bala

IPC分类号： G06K9/00

CPC分类号： H04N1/6016 ,  H04N1/603

摘要： This disclosure provides methods, apparatus and systems for performing image processing regression for approximating multidimensional color transformation. According to an exemplary method, a shaping matrix is selected to minimize a cost function associated with a local linear regression representation of the color transformation.

摘要翻译： 本公开提供了用于执行用于近似多维颜色变换的图像处理回归的方法，装置和系统。 根据示例性方法，选择整形矩阵以最小化与颜色变换的局部线性回归表示相关联的成本函数。

公开(公告)号：US07760934B2

公开(公告)日：2010-07-20

申请号：US12058567

申请日：2008-03-28

申请人： Raja Bala ,  Reiner Eschbach

发明人： Raja Bala ,  Reiner Eschbach

IPC分类号： G06K9/00

CPC分类号： H04N1/40012 ,  H04N5/208 ,  H04N9/77

摘要： A method and apparatus for translating color to grayscale images, wherein at least some pixels of the color image having the same color are mapped to different grays in the grayscale image depending on the spatial surround of each pixel. Further, the method and apparatus may include applying a high pass filter to at least one chrominance component of a color image to generate at least one high pass filtered chrominance component, and adjusting a luminance component of the color image based upon the at least one high pass filtered chrominance component.

摘要翻译： 一种用于将颜色转换为灰度图像的方法和装置，其中根据每个像素的空间环绕，具有相同颜色的彩色图像的至少一些像素被映射到灰度图像中的不同灰度。 此外，所述方法和装置可以包括将高通滤波器应用于彩色图像的至少一个色度分量以产生至少一个高通滤波色度分量，并且基于至少一个高频来调整彩色图像的亮度分量 通过滤色度分量。

公开(公告)号：US07747073B2

公开(公告)日：2010-06-29

申请号：US10997528

申请日：2004-11-24

申请人： Raja Bala ,  Gaurav Sharma

发明人： Raja Bala ,  Gaurav Sharma

IPC分类号： G06K9/00 ,  G03F3/08

CPC分类号： H04N1/603

摘要： A system and method for generating an adjusted profile for a device in response to a specified aim, where the aim may include parameters established in response to a user's specifications, for device emulation, etc.

摘要翻译： 一种用于响应于指定目的产生用于设备的经调整的简档的系统和方法，其中目的可以包括响应于用户的规范而建立的参数，用于设备仿真等。

公开(公告)号：US20100040282A1

公开(公告)日：2010-02-18

申请号：US12191721

申请日：2008-08-14

申请人： Raja Bala ,  Reiner Eschbach ,  Yonghui Zhao

发明人： Raja Bala ,  Reiner Eschbach ,  Yonghui Zhao

IPC分类号： G06K9/00

CPC分类号： G06K9/38 ,  G06K2009/0059 ,  G06K2209/01 ,  G06T7/11 ,  G06T7/155 ,  G06T7/194 ,  G06T2207/10008 ,  G06T2207/20036 ,  G07D7/005

摘要： A method and system for identifying a fluorescence mark in a printed document includes using an image acquisition device to derive an input digital image that represents a printed document including a background and a fluorescence mark adjacent the background. The input digital image includes multiple color channel digital images, with each color channel digital image comprising a plurality of pixels each defined by a gray value. For each pixel of at least one of the color channel digital images, the gray value is adjusted based upon a variance of adjacent pixel gray values to define a filtered digital image including a plurality of pixels each defined by an adjusted gray value. Some pixels of the filtered digital image correspond to low variance regions of the input digital image and other pixels of the filtered digital image correspond to high variance regions of the input digital image. A binary image is derived that represents the filtered digital image by mapping each adjusted gray value of the filtered image to either a first or second possible binary pixel value. The binary image includes a binary representation of the fluorescence mark and a binary representation of the background. At least one morphological operation is performed on the binary image to adjust the pixel values of the binary representation of the background so that all pixel values of the binary representation of the background are opposite the binary pixel value used for the binary representation of the fluorescence mark. An ASCII character for the binary representation of the fluorescence mark (or each constituent character thereof) can be derived and compared to a known security code to authenticate the printed document.

摘要翻译： 用于识别印刷文档中的荧光标记的方法和系统包括使用图像获取装置来导出表示包括背景的印刷文档和邻近背景的荧光标记的输入数字图像。 输入数字图像包括多个彩色通道数字图像，每个彩色通道数字图像包括由灰度值定义的多个像素。 对于至少一个颜色通道数字图像的每个像素，基于相邻像素灰度值的方差来调整灰度值，以定义包括由调整的灰度值定义的多个像素的滤波数字图像。 滤波数字图像的一些像素对应于输入数字图像的低方差区域，并且滤波数字图像的其他像素对应于输入数字图像的高方差区域。 导出二进制图像，其通过将滤波图像的每个经调整的灰度值映射到第一或第二可能二进制像素值来表示经滤波的数字图像。 二进制图像包括荧光标记的二进制表示和背景的二进制表示。 对二进制图像执行至少一个形态学操作以调整背景的二进制表示的像素值，使得背景的二进制表示的所有像素值与用于荧光标记的二进制表示的二进制像素值相反 。 可以导出用于荧光标记（或其每个构成字符）的二进制表示的ASCII字符，并将其与已知的安全代码进行比较以验证打印文档。

公开(公告)号：US07652791B2

公开(公告)日：2010-01-26

申请号：US11488355

申请日：2006-07-18

申请人： Ann L. McCarthy ,  Edul N. Dalal ,  Wencheng Wu ,  Dale R. Mashtare ,  Raja Bala

发明人： Ann L. McCarthy ,  Edul N. Dalal ,  Wencheng Wu ,  Dale R. Mashtare ,  Raja Bala

IPC分类号： G06F3/12

CPC分类号： H04N1/6055 ,  G06F3/1204 ,  G06F3/1208 ,  G06F3/1234 ,  G06F3/1273 ,  H04N1/40006 ,  H04N1/6011

摘要： Consistency of document reprints is improved by recording characteristics of a reference printing system used to produce a reference printing of a document, determining related characteristics of a reprint printing system, retrieving the recorded characteristics and compensating for differences between the reference system and the reprint system in the reprint system prior to using the reprint system to produce reprints of the document. Analytical test prints (TPs) are produced with the respective printing systems in close temporal association to the production of the respective reference prints and reprints. TPs can be customized according to aspects of the document. TP customization allows the compensation to address aspects of the printing systems that have a bearing on perceived consistency in the reprints. TPs can be customized with regard to colors in test patches or both the colors and locations of test patches on a page. Compensation is based on measurements of the TPs.

摘要翻译： 通过记录用于生成文档的参考打印的参考打印系统的特性来改进文档重印的一致性，确定重印打印系统的相关特征，检索记录的特性并补偿参考系和重印系统之间的差异 在重印系统使用转印系统之前，重印系统可以重印本文档。 分析测试印刷品（TP）与相应的印刷系统一起生产，与相应的参考印刷品的印刷和重印相关。 TP可以根据文档的方面进行定制。 TP定制允许补偿来处理与重印中感知到的一致性有关的打印系统的方面。 TP可以针对测试补丁中的颜色或页面上测试补丁的颜色和位置进行定制。 补偿是基于TP的测量。

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：US07511860B2

公开(公告)日：2009-03-31

申请号：US10988555

申请日：2004-11-16

申请人： R. Victor Klassen ,  Raja Bala

发明人： R. Victor Klassen ,  Raja Bala

IPC分类号： H04N1/40

CPC分类号： G06T1/0021 ,  H04N1/6058

摘要： Systems and methods preserve the information lost in gamut-mapping during marking (e.g., printing) such that the lost information survives the marking and recapture (e.g. scanning) process. Generally, an encoding method may include gamut-mapping and image for a particular device; determining a residual image; and embedding the information needed to recover the residual image within the pixels of the gamut-mapped image. Generally, a decoding method may include extracting the embedded information from the image; and using the residual image to restore the gamut-mapped image to the original image.

摘要翻译： 系统和方法在标记（例如打印）期间保留在色域映射中丢失的信息，使得丢失的信息在标记和重新捕获（例如扫描）过程中存活。 通常，编码方法可以包括用于特定设备的色域映射和图像; 确定残差图像; 并且嵌入在色域映射图像的像素内恢复残留图像所需的信息。 通常，解码方法可以包括从图像中提取嵌入信息; 并使用残差图像将色域映射的图像恢复到原始图像。

公开(公告)号：US20090067017A1

公开(公告)日：2009-03-12

申请号：US11853652

申请日：2007-09-11

申请人： Vishal Monga ,  Raja Bala

发明人： Vishal Monga ,  Raja Bala

IPC分类号： G03F3/00 ,  G06K9/00

CPC分类号： G09G5/06 ,  G09G2340/10 ,  H04N1/6019

摘要： The proposed systems and methods automatically select the node locations of a multi-dimensional lookup table transformation in accordance with the relative importance of multi-dimensional input values. Such importance, as an example could be quantified by the statistical distribution of the input data. Additionally, the proposed scheme is efficient and works for inputs of arbitrary dimensionality. Finally, the proposed method accounts the characteristics of the input-data and the geometry of the input space. The proposed systems and methods are generally applicable to a large number of practical scenarios including, but not limited to, color imaging applications where input adaptive color look-up tables are desired.

摘要翻译： 所提出的系统和方法根据多维输入值的相对重要性自动选择多维查找表变换的节点位置。 作为示例的重要性可以通过输入数据的统计分布来量化。 此外，所提出的方案是有效的，适用于任意维度的输入。 最后，提出的方法考虑了输入数据的特征和输入空间的几何。 所提出的系统和方法通常适用于大量实际场景，包括但不限于期望输入自适应颜色查找表的彩色成像应用。