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1. 发明授权

US08064100B2 Watermark encoding and detection using narrow band illumination 有权
标题翻译：使用窄带照明的水印编码和检测
公开(公告)号：US08064100B2
公开(公告)日：2011-11-22
申请号：US12329082
申请日：2008-12-05
申请人： Karen M. Braun , Raja Bala , Robert P. Loce
发明人： Karen M. Braun , Raja Bala , Robert P. Loce
IPC分类号： H04N1/44 , H04N1/52 , H04N1/56 , G06K15/02 , B41M3/10 , G07D7/12
CPC分类号： H04N1/32309 , H04N1/32352 , H04N2201/327 , H04N2201/3271 , Y10S283/902
摘要： A system is employed to reveal a watermark in a document. A watermark generator is utilized to select the placement and at least one colorant combination of an image and at least one colorant combination for a watermark on a document, where the at least one colorant combination of the image and the watermark form a metameric pair. A printing system receives data from the watermark generator and places the image and the watermark on the document. A decoder comprising a narrow band illumination element is selected or tuned to a wavelength corresponding to the colorant combinations utilized by the printing system to reveal the watermark placed thereon.
摘要翻译：采用系统在文档中显示水印。使用水印生成器来选择图像的至少一种着色剂组合和用于文档上的水印的至少一种着色剂组合，其中图像和水印的至少一种着色剂组合形成同色异体对。打印系统从水印生成器接收数据，并将图像和水印放置在文档上。包括窄带照明元件的解码器被选择或调谐到与由打印系统使用的着色剂组合相对应的波长以显示其上放置的水印。

2. 发明申请

US20100142003A1 WATERMARK ENCODING AND DETECTION USING NARROW BAND ILLUMINATION 有权
标题翻译：使用窄带照明的WATERMARK编码和检测
公开(公告)号：US20100142003A1
公开(公告)日：2010-06-10
申请号：US12329082
申请日：2008-12-05
申请人： Karen M. Braun , Raja Bala , Robert P. Loce
发明人： Karen M. Braun , Raja Bala , Robert P. Loce
IPC分类号： G06K15/02 , H04N1/405 , G06K9/00
CPC分类号： H04N1/32309 , H04N1/32352 , H04N2201/327 , H04N2201/3271 , Y10S283/902
摘要： A system is employed to reveal a watermark in a document. A watermark generator is utilized to select the placement and at least one colorant combination of an image and at least one colorant combination for a watermark on a document, where the at least one colorant combination of the image and the watermark form a metameric pair. A printing system receives data from the watermark generator and places the image and the watermark on the document. A decoder comprising a narrow band illumination element is selected or tuned to a wavelength corresponding to the colorant combinations utilized by the printing system to reveal the watermark placed thereon.
摘要翻译：采用系统在文档中显示水印。使用水印生成器来选择图像的至少一种着色剂组合和用于文档上的水印的至少一种着色剂组合，其中图像和水印的至少一种着色剂组合形成同色异体对。打印系统从水印生成器接收数据，并将图像和水印放置在文档上。包括窄带照明元件的解码器被选择或调谐到与由打印系统使用的着色剂组合相对应的波长以显示其上放置的水印。

3. 发明申请

US20080137149A1 Watermarking 有权
标题翻译：水印
公开(公告)号：US20080137149A1
公开(公告)日：2008-06-12
申请号：US11634657
申请日：2006-12-06
申请人： Robert P. Loce , Raja Bala , Karen M. Braun
发明人： Robert P. Loce , Raja Bala , Karen M. Braun
IPC分类号： G06K15/00
CPC分类号： H04N1/32309 , H04N1/32299
摘要： Extended colorant sets are used to hide data or provide a watermark in printed images. Extended set colorants are colorants other than, and in addition to, the standard or common subtractive primary colorants: cyan, magenta, yellow and/or black. Where the extended colorant set supports a plurality of colorant recipes for rendering a given color, watermark data is used to select a colorant recipe from the plurality. As the watermark data to be encoded in the image changes state with image position, alternate colorant recipes or colorant selection functions are selected. The image is rendered based on the alternate colorant recipe selections. Watermark information is encoded in the colorant recipe or colorant selection function selection. Use of the extended colorant sets allows information to be encoded even in portions of an image having colors that do not include a neutral component.
摘要翻译：扩展着色剂集合用于隐藏数据或在打印图像中提供水印。扩展的定色着色剂是除了标准或普通的减色原色色剂之外的除了和附加的着色剂：青色，品红色，黄色和/或黑色。在延伸着色剂组支持用于渲染给定颜色的多个着色剂配方的情况下，使用水印数据从多个中选择着色剂配方。当图像中要编码的水印数据用图像位置改变状态时，选择着色剂配方或着色剂选择功能。基于备选着色剂配方选择渲染图像。水印信息在着色剂配方或着色剂选择功能选择中进行编码。使用扩展着色剂组允许即使在具有不包括中性成分的颜色的图像的部分中也可以对信息进行编码。

4. 发明授权

US07764403B2 Watermarking 有权
标题翻译：水印
公开(公告)号：US07764403B2
公开(公告)日：2010-07-27
申请号：US11634657
申请日：2006-12-06
申请人： Robert P. Loce , Raja Bala , Karen M. Braun
发明人： Robert P. Loce , Raja Bala , Karen M. Braun
IPC分类号： H04N1/40 , H04N1/60
CPC分类号： H04N1/32309 , H04N1/32299
摘要： Extended colorant sets are used to hide data or provide a watermark in printed images. Extended set colorants are colorants other than, and in addition to, the standard or common subtractive primary colorants: cyan, magenta, yellow and/or black. Where the extended colorant set supports a plurality of colorant recipes for rendering a given color, watermark data is used to select a colorant recipe from the plurality. As the watermark data to be encoded in the image changes state with image position, alternate colorant recipes or colorant selection functions are selected. The image is rendered based on the alternate colorant recipe selections. Watermark information is encoded in the colorant recipe or colorant selection function selection. Use of the extended colorant sets allows information to be encoded even in portions of an image having colors that do not include a neutral component.
摘要翻译：扩展着色剂集合用于隐藏数据或在打印图像中提供水印。扩展的定色着色剂是除了标准或普通的减色原色着色剂之外的除了以外的着色剂：青色，品红色，黄色和/或黑色。在延伸着色剂组支持用于渲染给定颜色的多个着色剂配方的情况下，使用水印数据从多个中选择着色剂配方。当图像中要编码的水印数据用图像位置改变状态时，选择着色剂配方或着色剂选择功能。基于备选着色剂配方选择渲染图像。水印信息在着色剂配方或着色剂选择功能选择中进行编码。使用扩展着色剂组允许即使在具有不包括中性成分的颜色的图像的部分中也可以对信息进行编码。

5. 发明授权

US07215817B2 System and method for digital watermarking in a calibrated printing path 有权
公开(公告)号：US07215817B2
公开(公告)日：2007-05-08
申请号：US10644342
申请日：2003-08-20
申请人： Ricardo L. de Queiroz , Robert P. Loce , Karen M. Braun , Raja Bala
发明人： Ricardo L. de Queiroz , Robert P. Loce , Karen M. Braun , Raja Bala
IPC分类号： G06K9/36 , G06K9/00
CPC分类号： G06K9/36 , H04N1/32309 , H04N1/32352
摘要： What is disclosed is a decoding method for retrieving information bits encoded in a printed image comprising the steps of first receiving an input electronic image as a scanned version of the printed image. A region of interest in the image is then extracted and, for that region, an amount of K colorant present, denoted KH; is obtained. Further, a color value is generated therefrom and the GCR used for encoding that region is determined using KH and the obtained color value. Encoded information bits are retrieved therefrom based on the determined GCR. The estimated KH is preferably evaluated conditional to a capacity signal KL and a luminance signal L. From the obtained data, values of KH, KL, and L, are derived wherein KH is estimated from a high resolution scan, and KL and L are estimated from a down-scaled image, respectively. The capacity signal KL and the luminance signal L are derived from the obtained color value. Further, the capacity signal, KL is derived by first applying a suitable operator S to reduce the image from scanner resolution to the watermark resolution and then converting the obtained color values to CMY estimates such that KL=min(C,M,Y) Alternatively, K-capacity is derived from the amount, KL, y, comprises first converting the obtained color values to CMY estimates and applying a suitable operator S to reduce the image from scanner resolution to the watermark resolution such that KL=min(S(C),S(M),S(Y)); wherein L is described by a linear combination of scan signals RGB, such that L=k1S(R)+k2S(G)+k3S(B). The value of KH is determined by first converting the obtained color values to CMY estimates. The estimates determine K-colorant amount at each pixel such that: K=min(C,M,Y). A suitable operator S is applied to reduce the image from scanner resolution to the watermark resolution.

6. 发明授权

US07070252B2 System and method for digital watermarking in a calibrated printing path 失效
标题翻译：校准打印路径中数字水印的系统和方法
公开(公告)号：US07070252B2
公开(公告)日：2006-07-04
申请号：US10644472
申请日：2003-08-20
申请人： Ricardo L. de Queiroz , Robert P. Loce , Karen M. Braun , Raja Bala
发明人： Ricardo L. de Queiroz , Robert P. Loce , Karen M. Braun , Raja Bala
IPC分类号： B41J2/205 , G06F15/00
CPC分类号： B41J2/205 , H04N1/32144 , H04N1/32251 , H04N1/32267 , H04N1/32309
摘要： What is disclosed is a method for digital watermarking in a calibrated printing path and comprises: first receiving a pixel possessing color values from an input image; receiving a plurality of information bits to be encoded at a corresponding pixel in an output image. Then, one of at least two different GCR functions are selected where the selection is based on the state of the received information bits. The number of GCR functions to be selected from is dependent on the number of possible states of the information bits intended to be encoded at each image pixel and preferably equals the number of states of the information bits intended to be encoded at each image pixel such that the GCR spatially varies across the output image. Further, at least two GCR functions are optimized to carry information and information bits intended to be encoded within the output image are represented with a tag. CMYK values are then generated using the selected GCR function and the color values. These CMYK values are assigned to a corresponding pixel in the output image. The information bits to be encoded at a given pixel indicate the type of object to which that pixel belongs, such as: graphics, picture, text, line art, etc. The output image, when printed, exhibits the property that substantially similar colors occurring at different spatial locations in the input image are produced with substantially different CMYK combinations in the print. Preferably, a parameterized function is used for the GCR function and the encoded state sets the parameter of the function. Information bits should be redundantly encoded throughout the output image. Regions that cannot be encoded by GCR information have to be compensated for. A reference mark is applied on the output image to indicate the starting point and order of the information sequence.
摘要翻译：所公开的是在校准打印路径中进行数字水印的方法，包括：首先从输入图像接收具有颜色值的像素; 在输出图像中的相应像素处接收要编码的多个信息比特。然后，选择至少两个不同的GCR功能中的一个，其中选择基于所接收的信息比特的状态。要选择的GCR功能的数量取决于要在每个图像像素处被编码的信息比特的可能状态的数量，并且优选地等于要在每个图像像素处编码的信息比特的状态数，使得 GCR在输出图像之间空间变化。此外，至少两个GCR功能被优化以携带信息，并且用标签表示旨在在输出图像内编码的信息位。然后使用所选的GCR功能和颜色值生成CMYK值。这些CMYK值被分配给输出图像中的相应像素。在给定像素处要编码的信息位指示像素所属于的对象的类型，例如：图形，图片，文本，线条等。输出图像在打印时表现出基本相似的颜色出现的属性在输入图像中的不同空间位置处，在打印中以基本不同的CMYK组合产生。优选地，GCR函数使用参数化函数，编码状态设置函数的参数。信息位应在整个输出图像中进行冗余编码。不能由GCR信息编码的区域必须得到补偿。在输出图像上应用参考标记来指示信息序列的起点和顺序。

7. 发明授权

US09111477B2 Language-based color calibration of displays 有权
标题翻译：基于语言的显示器颜色校准
公开(公告)号：US09111477B2
公开(公告)日：2015-08-18
申请号：US13193955
申请日：2011-07-29
申请人： Raja Bala , Karen M. Braun , Robert J. Rolleston , George A. Gibson
发明人： Raja Bala , Karen M. Braun , Robert J. Rolleston , George A. Gibson
IPC分类号： H04N1/60 , G09G5/02 , H04N9/68
CPC分类号： G09G5/02 , G01J3/463 , G01J3/506 , G09G3/006 , G09G2320/0606 , G09G2320/0666 , G09G2320/0693 , H04N1/6033 , H04N1/6038 , H04N9/68 , H04N9/69 , H04N17/02 , H04N17/04
摘要： Described herein is a method of calibrating displays (or printers) using Natural Language-based commands. The exemplary method provides an easy-to-use solution to the common methods of color calibrating a display. Instead of using sliders or manual controls for the individual dimensions of a three-dimensional color problem, the user is able to make adjustments via natural language commands, such as “make reference patch less purple.” The method does not require the user to understand color mixing technology when making separate R, G, and B adjustments to match a specified patch. A user can easily express the necessary color adjustment in natural language terms, making the process simpler and faster.
摘要翻译：这里描述的是使用基于自然语言的命令校准显示器（或打印机）的方法。该示例性方法为对显示器进行颜色校准的常见方法提供了易于使用的解决方案。用户可以通过自然语言命令进行调整，而不是使用滑块或手动控制三维颜色问题的各个维度，例如“使参考补丁少紫色”。该方法不需要用户理解进行单独的R，G和B调整以匹配指定的补丁时的混色技术。用户可以轻松地以自然语言表达必要的颜色调整，使过程更简单快捷。

8. 发明授权

US06989839B2 Method for converting color to monochrome to maintain differentiability 失效
标题翻译：将颜色转换为单色以保持可微性的方法
公开(公告)号：US06989839B2
公开(公告)日：2006-01-24
申请号：US10465437
申请日：2003-06-19
申请人： Karen M. Braun , Raja Bala
发明人： Karen M. Braun , Raja Bala
IPC分类号： G09G5/02
CPC分类号： G09G5/028 , G06K15/02 , G06K15/1825 , H04N1/40012
摘要： What is disclosed is an image processing method for enabling one to print color graphics and other recognizable objects on monochrome printers while retaining color differences. More specifically, the present method is for preserving color discriminability in a grayscale representation. The method involves first sorting colors according to at least one characteristic dimension of a color space such as lightnesses. The color space preferably is a luminance-chrominance color space, although others are envisioned. The sorted colors are adjusted by a metric appropriate to the color space such that the metric imparts a degree of distinction among the colors along the chosen characteristic dimension. The spacing between two adjacent sorted colors can be constant, or weighted by the total color difference between the two colors in the original color space. Color difference can be calculated using for example ΔE*ab, ΔE*LCh, ΔE*94, or DE2000 metrics. Once the colors have been adjusted, they are converted to the monochrome representation using straightforward techniques.
摘要翻译：所公开的是一种用于使得能够在保持颜色差异的同时在单色打印机上打印彩色图形和其他可识别对象的图像处理方法。更具体地，本方法用于保持灰度表示中的颜色辨别性。该方法包括首先根据诸如亮度的颜色空间的至少一个特征尺寸来分类颜色。颜色空间优选地是亮度 - 色度色彩空间，尽管其他设想也是如此。分类颜色通过适合于颜色空间的度量来调整，使得度量赋予沿所选特征维度的颜色之间的一定程度的区别。两个相邻排序颜色之间的间距可以是常数，或者由原始颜色空间中的两种颜色之间的总色差加权。色差可以使用例如DeltaE * SUB，ΔE*，LCh，DeltaE * 94或DE2000度量来计算。一旦颜色被调整，它们将使用简单的技术转换为单色表示。

9. 发明申请

US20120301023A1 METHOD AND APPARATUS FOR EDITING COLOR CHARACTERISTICS OF ELECTRONIC IMAGE 有权
标题翻译：用于编辑电子图像颜色特征的方法和装置
公开(公告)号：US20120301023A1
公开(公告)日：2012-11-29
申请号：US13116210
申请日：2011-05-26
申请人： Karen M. Braun , Elizabeth D. Wayman , Michael P. Kehoe , Raja Bala , Yonghui Zhao
发明人： Karen M. Braun , Elizabeth D. Wayman , Michael P. Kehoe , Raja Bala , Yonghui Zhao
IPC分类号： G06K9/00
CPC分类号： G06T11/001 , G06T5/009 , G06T5/40 , G06T11/60 , G06T2207/10024 , G06T2207/20092
摘要： A method of editing color characteristics of an electronic image includes: a) receiving an original electronic image at a color editing subsystem; b) analyzing the original electronic image to identify original color characteristics and to identify a recommended set of color editing options, the recommended set of color editing options being less than a complete set of color editing options provided by the color editing subsystem; c) presenting the recommended set to a user via a user interface device; d) receiving a color editing instruction from the user interface device in response to the user selecting a corresponding color editing option from the recommended set; and e) adjusting the original color characteristics to form an adjusted electronic image having adjusted color characteristics based at least in part on the color editing instruction. An apparatus for editing color characteristics of an electronic image is also provided.
摘要翻译：编辑电子图像的颜色特性的方法包括：a）在彩色编辑子系统处接收原始电子图像; b）分析原始电子图像以识别原始颜色特征并识别推荐的一组颜色编辑选项，推荐的一组颜色编辑选项小于由颜色编辑子系统提供的一整套颜色编辑选项; c）通过用户界面设备向用户呈现推荐的集合; d）响应于用户从推荐的组中选择相应的颜色编辑选项，从用户界面设备接收颜色编辑指令; 以及e）至少部分地基于所述颜色编辑指令来调整所述原始颜色特征以形成具有调整的颜色特性的经调整的电子图像。还提供了一种用于编辑电子图像的颜色特性的装置。

10. 发明授权

US07639401B2 Camera-based method for calibrating color displays 失效
标题翻译：用于校准彩色显示器的基于相机的方法
公开(公告)号：US07639401B2
公开(公告)日：2009-12-29
申请号：US11012994
申请日：2004-12-15
申请人： Raja Bala , Karen M. Braun , Robert J. Rolleston
发明人： Raja Bala , Karen M. Braun , Robert J. Rolleston
IPC分类号： H04N1/46 , G06K9/00
CPC分类号： H04N1/6033 , H04N9/3194
摘要： Provided herein are teachings directed to overcoming the problem of erroneous color reproduction on a color output device such as a color display. The teachings herein provide a method for correcting color image data input to a display device by displaying a target of color patches of known input values on the display device, and capturing an image of the target with a digital camera. This is followed by extracting camera signals from the image which corresponds to the color patches, and deriving a tone response calibration for the projector from the camera signals and the input values.
摘要翻译：这里提供的是旨在克服彩色显示器等彩色输出装置上的错误色彩再现问题的教导。本文的教导提供了一种通过在显示装置上显示已知输入值的色标目标并用数字照相机捕获目标图像来校正输入到显示装置的彩色图像数据的方法。然后从相应于色块的图像中提取相机信号，并根据相机信号和输入值导出投影机的色调响应校准。

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