公开(公告)号：US07456845B2

公开(公告)日：2008-11-25

申请号：US11093636

申请日：2005-03-29

Applicant: Nicholas P. Wilt ,  Gideon A. Yuval ,  Michael D. Stokes

Inventor： Nicholas P. Wilt ,  Gideon A. Yuval ,  Michael D. Stokes

IPC: G09G5/02 ,  G09G5/00

CPC classification number: H04N1/6016

Abstract: An imaging or other sensory reproduction system efficiently converts image or other sensory data between a perceptual color space (e.g., the sRGB color space) and a physical color space (unity gamma) or other perceptual/physical sensory models that are related by an expression involving a computationally expensive exponential function. The imaging system calculates exponential functions that can be composed from computationally inexpensive operations, such as square root, square, reciprocal, as well as multiplications and/or additions and subtractions. These computationally less expensive functions are then combined, such as in a weighted and/or offset mean, summation or difference to approximate the computationally expensive exponential function. The imaging system evaluates the expression using the approximation to efficiently yield the converted image data. The efficient conversion between perceptual and physical color spaces allows operations, such as blending and anti-aliasing, to be performed in the physical color space before display of a perceptual color space image.

Abstract translation: 成像或其他感觉再现系统有效地将感知颜色空间（例如，sRGB颜色空间）和物理颜色空间（单位伽马）或其他感知/物理感觉模型之间的图像或其他感觉数据转换成涉及到的表达 一个计算上昂贵的指数函数。 成像系统计算可以由计算上廉价的操作组成的指数函数，例如平方根，平方，倒数，以及乘法和/或加法和减法。 然后将这些计算上较便宜的功能组合，例如以加权和/或补偿平均值，求和或差值，以近似计算上昂贵的指数函数。 成像系统使用近似来评估表达，以有效地产生转换的图像数据。 感知和物理颜色空间之间的有效转换允许在显示感知色彩空间图像之前在物理颜色空间中执行诸如混合和抗锯齿的操作。

公开(公告)号：US07426029B2

公开(公告)日：2008-09-16

申请号：US11217070

申请日：2005-08-31

Applicant: Charles A Mauzy ,  Michael D Stokes ,  Gary K. Starkweather ,  Jonathan R. Schwartz

Inventor： Charles A Mauzy ,  Michael D Stokes ,  Gary K. Starkweather ,  Jonathan R. Schwartz

IPC: G01J3/28

CPC classification number: G01J3/18 ,  G01J3/02 ,  G01J3/0256 ,  G01J3/0272 ,  G01J3/06 ,  G01J3/502 ,  G01J2003/064 ,  G02B5/1828

Abstract: Color measurement using compact devices is described herein. A color measurement device can include a diffraction grating that receives light reflected from a surface whose color is being measured. The diffraction grating is responsive to a control signal to split selected components from the reflected light and to admit the components in sequence to a sensor. The components can correspond to a selected wavelength or frequency of the reflected light. The sensor measures the energy or power level of each of the admitted components. The device can support determining a spectral representation of the color of the surface by generating output signals representing the various energy or power levels of each component of the light reflected from the surface.

Abstract translation: 这里描述使用紧凑型装置的颜色测量。 颜色测量装置可以包括接收从被测量颜色的表面反射的光的衍射光栅。 衍射光栅响应于控制信号以从反射光中分离所选择的分量，并将分量依次接纳到传感器。 这些分量可以对应于所选择的反射光的波长或频率。 传感器测量每个被允许组件的能量或功率水平。 该装置可以支持通过产生表示从表面反射的光的每个分量的各种能量或功率水平的输出信号来确定表面的颜色的光谱表示。

公开(公告)号：US07403206B1

公开(公告)日：2008-07-22

申请号：US11031364

申请日：2005-01-07

Applicant: Min Liu ,  Regis J. Crinon ,  Jason S. White ,  Charles Finkelstein ,  Michael D Stokes

Inventor： Min Liu ,  Regis J. Crinon ,  Jason S. White ,  Charles Finkelstein ,  Michael D Stokes

IPC: G09G5/02

CPC classification number: G09G5/02 ,  G09G5/06 ,  G09G2320/0666 ,  G09G2320/0673 ,  G09G2320/08 ,  G09G2340/06 ,  G09G2360/14 ,  G09G2360/144 ,  H04N1/603 ,  H04N9/67 ,  H04N17/02

Abstract: Validating a color that is selected in an authoring environment for display in a destination media environment includes selecting a color for an application, converting the values of the color to those in a fundamental color space, and converting the values from the fundamental color space to those in a color space corresponding to the destination media environment. Validity of the selected color in the destination media environment depends on the component values in the destination media environment being within an acceptable range of values.

公开(公告)号：US20080123941A1

公开(公告)日：2008-05-29

申请号：US11563611

申请日：2006-11-27

Applicant: Michael D. Stokes

Inventor： Michael D. Stokes

IPC: G06K9/00

CPC classification number: G06T11/001

Abstract: Various embodiments employ methods and techniques to determine if color reproduction by a device produces or may potentially produce objectionable or unacceptable color-related phenomena. The methods and techniques, in at least some embodiments, can analyze trends in color reproduction to detect artifacts that may indicate objectionable or unacceptable color-related phenomena.

Abstract translation: 各种实施例采用方法和技术来确定设备的颜色再现是否产生或可能产生令人反感或不可接受的颜色相关现象。 在至少一些实施例中，方法和技术可以分析颜色再现中的趋势，以检测可能表示令人反感或不可接受的颜色相关现象的伪像。

公开(公告)号：US06628828B1

公开(公告)日：2003-09-30

申请号：US09556214

申请日：2000-04-24

Applicant: Michael D. Stokes ,  Adrian Secchia ,  Gilman K. Wong

Inventor： Michael D. Stokes ,  Adrian Secchia ,  Gilman K. Wong

IPC: G06K900

CPC classification number: G06T3/00 ,  H04N1/56

Abstract: A system and method for recoloring color objects selectively applies color processing operations in a particular pipelined sequence to offer improved performance and quality of color processing. The recoloring sequence includes a transformation by a 5×5 matrix that handles various types of transformations in the color space of the color object, a gamma correction, a bi-level thresholding operation, and a conversion into a color space, such as the CMYK space, for an output device. Each of these operations in the recoloring sequence may be selectively activated or deactivated depending on the attributes of the color object being processed and the desired recoloring effects. The transformation with the 5×5 matrix allows various transformation operations, such as rotation, scaling, translation, shearing, and perspective in the color space of the color object to be combined and performed in a single step, resulting in significantly improved processing efficiency.

Abstract translation: 用于变色颜色对象的系统和方法选择性地以特定流水线序列进行颜色处理操作，以提供改进的颜色处理的性能和质量。 再现序列包括通过处理彩色对象的颜色空间中的各种类型的变换的5×5矩阵的变换，伽马校正，双层阈值操作以及到诸如CMYK空间的颜色空间的转换， 用于输出设备。 取决于正在处理的颜色对象的属性和期望的再现效果，可以选择性地激活或去激活重新排序中的这些操作。 使用5x5矩阵的变换允许在单个步骤中组合和执行的颜色对象的颜色空间中的各种变换操作，例如旋转，缩放，平移，剪切和透视，导致显着提高的处理效率。

公开(公告)号：US06462748B1

公开(公告)日：2002-10-08

申请号：US09556215

申请日：2000-04-24

Applicant: Ikko Fushiki ,  Andrew C. Godfrey ,  J. Andrew Goossen ,  Hock San Lee ,  Michael D. Stokes ,  Gilman K. Wong

Inventor： Ikko Fushiki ,  Andrew C. Godfrey ,  J. Andrew Goossen ,  Hock San Lee ,  Michael D. Stokes ,  Gilman K. Wong

IPC: G06T1140

CPC classification number: H04N1/6008 ,  H04N1/60 ,  H04N1/603

Abstract: A system and method for processing color objects provides optimal processing quality by supporting both a perceptual-based color space and a physical-based color space and utilizing both color spaces for color processing in an integrated manner transparent to the end user. The graphics engine of the system includes a module for converting a color object being processed between the perceptual-base color space and the physical-based color space. During color processing that may involve various perceptual-based and physical-based operations, the graphics engine automatically converts the color object from one of the perceptual-based and physical-based color spaces to the other depending on the color processing operation to be performed. The graphics engine may also perform conversions on input graphic data from an input device to one of the dual color spaces for processing and converting a processed class object into the color space of an output device for displaying or printing.

Abstract translation: 用于处理颜色对象的系统和方法通过支持基于感知的颜色空间和基于物理的颜色空间来提供最佳处理质量，并且以对于最终用户透明的集成方式利用颜色处理的两个颜色空间。 该系统的图形引擎包括一个模块，用于转换正在感知基础颜色空间和基于物理的颜色空间之间正在处理的彩色对象。 在可能涉及各种基于感知和基于物理的操作的颜色处理期间，图形引擎根据要执行的颜色处理操作自动将颜色对象从基于感知和基于物理的颜色空间之一转换到另一个。 图形引擎还可以对从输入设备到双色空间之一的输入图形数据执行转换，用于处理并将处理的类对象转换为用于显示或打印的输出设备的颜色空间。