-
公开(公告)号：US07764844B2
公开(公告)日：2010-07-27
申请号：US10938770
申请日：2004-09-10
IPC分类号： G06K9/36
CPC分类号： G06T7/0004 , G06T2207/20021 , G06T2207/20052 , G06T2207/30144 , G06T2207/30168 , H04N19/60 , H04N19/85
摘要： A method for determining a sharpness predictor for an input digital image includes determining one or more image metrics by analyzing the input digital image; and determining the sharpness predictor from the one or more image metrics.
摘要翻译： 用于确定输入数字图像的锐度预测器的方法包括通过分析输入数字图像来确定一个或多个图像度量; 以及从所述一个或多个图像度量确定所述锐度预测器。
-
72.发明授权Constructing extended color gamut digital images from limited color gamut digital images 有权从有限色域数字图像构建扩展色域数字图像公开(公告)号：US07308135B2
公开(公告)日：2007-12-11
申请号：US10757048
申请日：2004-01-14
IPC分类号： G06K9/00
CPC分类号： H04N1/6058
摘要： A method for reconstructing an extended color gamut digital image from a limited color gamut digital image includes transforming the limited color gamut digital image in the particular limited color gamut color space to a reference color space forming a limited color gamut digital image in a reference color space; providing a modified inverse color adjustment function which, when such function operates on the limited color gamut digital image in the reference color space, produces the reconstructed extended color gamut digital image having reduced highlight color saturation for highlight color values when compared with corresponding color values of the initial extended color gamut image; and operating on the limited color gamut digital image in the reference color space with the modified inverse color adjustment function to form the reconstructed extended color gamut digital image having reduced levels of color contouring and quantization artifacts.
摘要翻译： 用于从有限色域数字图像重建扩展色域数字图像的方法包括将特定有限色域颜色空间中的有限色域数字图像变换为在参考色彩空间中形成有限色域数字图像的参考颜色空间 ; 提供修改的反色调整功能，当这种功能对参考色彩空间中的有限色域数字图像进行操作时，产生具有降低的高亮度色彩饱和度的重构的扩展色域数字图像， 初始扩展色域图像; 并且利用修改的反色调整功能在参考颜色空间中的有限色域数字图像上进行操作，以形成具有降低的颜色轮廓和量化伪像水平的重建的扩展色域数字图像。
-
73.发明授权公开(公告)号：US07298892B2
公开(公告)日：2007-11-20
申请号：US10410550
申请日：2003-04-09
IPC分类号： G06K9/00
CPC分类号： H04N1/6077
摘要： A method for correcting the color balance of an input digital color image in an input color space captured under a capture illuminant to produce a balanced digital color image includes transforming the input digital color image to a balancing color space, wherein the balancing color space has three color channels corresponding to three color space primaries, the color space primaries being chosen so that minimal color errors can be produced when correcting the color balance for a set of one or more capture illuminants relative to aim colors that would be produced if the digital color image were captured under reference conditions; and correcting the color balance of the input digital color image in the balancing color space to produce a balanced digital color image having minimal color errors relative to aim colors that would be produced if the digital color image were captured under reference conditions.
摘要翻译： 一种用于校正在拍摄光源下拍摄的输入彩色空间中的输入数字彩色图像的颜色平衡以产生平衡数字彩色图像的方法，包括将输入数字彩色图像变换为平衡色彩空间，其中平衡色彩空间具有三个 对应于三个颜色空间原色的颜色通道，选择颜色空间原色，使得当校正相对于如果数字彩色图像将产生的目标颜色的一组或多个捕获光源的集合的色彩平衡时，可以产生最小的颜色误差 在参考条件下被捕获; 以及在平衡色彩空间中校正输入数字彩色图像的色彩平衡，以产生相对于在参考条件下拍摄数字彩色图像时将产生的对象颜色具有最小颜色误差的平衡数字彩色图像。
-
74.发明授权公开(公告)号：US06980221B2
公开(公告)日：2005-12-27
申请号：US09900565
申请日：2001-07-06
申请人： Kevin E. Spaulding , Qing Yu , Jiebo Luo
发明人： Kevin E. Spaulding , Qing Yu , Jiebo Luo
IPC分类号： B41J2/525 , G06T1/00 , G09G5/06 , H04N1/405 , H04N1/46 , H04N1/52 , H04N1/60 , H04N1/64 , G09G5/02 , G09G5/00
CPC分类号： H04N1/644
摘要： Disclosed is a method for converting an input digital color image having a set of possible input colors to an output digital color image having a set of palette colors, the number of palette colors being less than the number of possible input colors, wherein the set of palette colors is determined based on the distribution of colors in the input digital image supplemented by a distribution of important colors.
摘要翻译： 公开了一种用于将具有一组可能输入颜色的输入数字彩色图像转换成具有一组调色板颜色的输出数字彩色图像的方法，调色板颜色的数量小于可能的输入颜色的数量，其中， 调色板颜色是基于输入数字图像中颜色的分布来确定的，补充了重要颜色的分布。
-
75.发明授权Method for representing a digital color image using a set of palette colors based on detected important colors 有权基于检测到的重要颜色使用一组调色板颜色表示数字彩色图像的方法公开(公告)号：US06859210B2
公开(公告)日：2005-02-22
申请号：US09900564
申请日：2001-07-06
申请人： Jiebo Luo , Qing Yu , Kevin E. Spaulding
发明人： Jiebo Luo , Qing Yu , Kevin E. Spaulding
IPC分类号： G06T1/00 , G06T5/40 , G06T7/00 , G09G5/06 , H04N1/46 , H04N1/60 , H04N1/64 , G09G5/02 , G09G5/00
CPC分类号： H04N1/644
摘要： Disclosed is a method for converting an input digital color image having a set of possible input colors to an output digital color image having a set of palette colors, the number of palette colors being less than the number of possible input colors, wherein the set of palette colors is determined based on the distribution of colors in the input digital image boosted by a distribution of important colors contained in the input digital image.
摘要翻译： 公开了一种用于将具有一组可能输入颜色的输入数字彩色图像转换成具有一组调色板颜色的输出数字彩色图像的方法，调色板颜色的数量小于可能的输入颜色的数量，其中， 调色板颜色是基于通过输入数字图像中包含的重要颜色的分布而增强的输入数字图像中的颜色分布来确定的。
-
76.发明授权Method for processing an extended color gamut digital image using an image information parameter 有权使用图像信息参数来处理扩展色域数字图像的方法公开(公告)号：US06754384B1
公开(公告)日：2004-06-22
申请号：US09651510
申请日：2000-08-30
IPC分类号： G06K900
CPC分类号： H04N1/6058
摘要： A method for determining information parameter(s) useful in processing a digital image having color values with an extended color gamut, includes the steps of: adjusting the color values of the extended color gamut digital image to fit within a limited color gamut to form a limited color gamut digital image; determining a residual image representing a difference between the extended color gamut digital image and the limited color gamut digital image; and analyzing the residual image to determine one or more image information parameter(s) related to the information contained in the residual image such parameter(s) being useful in processing the digital image.
摘要翻译： 一种用于确定具有扩展色域的具有颜色值的数字图像处理有用的信息参数的方法，包括以下步骤：调整扩展色域数字图像的颜色值以适应有限色域以形成 有限色域数字图像; 确定表示所述扩展色域数字图像与所述有限色域数字图像之间的差的残差图像; 以及分析残差图像以确定与残留图像中包含的信息相关的一个或多个图像信息参数，所述参数在处理数字图像时是有用的。
-
77.发明授权Method for representing an extended color gamut digital image on a hard-copy output medium 失效在硬拷贝输出介质上表示扩展色域数字图像的方法公开(公告)号：US06748106B1
公开(公告)日：2004-06-08
申请号：US09537064
申请日：2000-03-28
IPC分类号： G06K900
CPC分类号： H04N1/6058
摘要： A method for representing an extended color gamut digital image on a hard-copy output medium having a limited color gamut comprising the steps of adjusting the color values of the extended color gamut digital image to fit within the limited color gamut of the output medium to form a limited color gamut digital image, producing a limited color gamut output print from the limited color gamut digital image on the hard-copy output medium, determining a residual image representing a difference between the extended color gamut digital image and the limited color gamut digital image, and encoding the residual image on the output print using a digital encoding means such that the residual image and the limited color gamut output print are adapted to be used to form a reconstructed extended color gamut digital image.
摘要翻译： 一种用于在具有有限色域的硬拷贝输出介质上表示扩展色域数字图像的方法，包括以下步骤：调整扩展色域数字图像的颜色值以适应输出介质的有限色域内形成 有限色域数字图像，从硬拷贝输出介质上的有限色域数字图像产生有限的色域输出打印，确定表示扩展色域数字图像与有限色域数字图像之间的差的残差图像 并且使用数字编码装置对输出打印上的残留图像进行编码，使得残差图像和有限色域输出打印适于用于形成重构的扩展色域数字图像。
-
78.发明授权Method and apparatus for generating a halftone pattern for a multi-level output device 失效用于产生用于多电平输出装置的半色调图案的方法和装置
公开(公告)号：US5586203A
公开(公告)日：1996-12-17
申请号：US331246
申请日：1994-10-28
CPC分类号： H04N1/40087 , H04N1/4051
摘要： Method and apparatus for generating a halftone image for a multi-level output device employing a dither matrix generated by minimizing a visual cost function. The dither matrix is addressed by the least significant bits of a pixel address and the value supplied by the dither matrix is added to the pixel value. The resulting sum is quantized in a quantizer to produce the multi-level halftone value.
摘要翻译： 用于生成用于通过最小化视觉成本函数产生的抖动矩阵的多级输出装置的半色调图像的方法和装置。 抖动矩阵由像素地址的最低有效位寻址，并且由抖动矩阵提供的值被添加到像素值。 所得到的和在量化器中量化以产生多级半色调值。
-
79.发明授权Method and associated apparatus for transforming input color values in an input color space to output color values in an output color space 失效用于变换输入颜色空间中的输入颜色值以输出输出颜色空间中的颜色值的方法和相关联的装置
公开(公告)号：US5539540A
公开(公告)日：1996-07-23
申请号：US305861
申请日：1994-09-13
CPC分类号： H04N1/6058
摘要： This invention provides a method for mapping an input color space to an output color space in such a way that the color reproduction characteristics of the saturated colors can be adjusted in a custom manner, while maintaining the desired tone reproduction on the neutral axis. This is accomplished by defining independently a tone transformation and a transformation for a plurality of highly saturated colors. A transformation is formed for the remaining color values having the specified transforms for the neutral and saturated colors as boundary values. In the preferred embodiment multi-dimensional look-up tables are used to implement the transform.
摘要翻译： 本发明提供了一种用于将输入颜色空间映射到输出颜色空间的方法，使得可以以定制的方式调整饱和色的颜色再现特性，同时保持中性轴上所需的色调再现。 这通过独立地定义多个高度饱和的颜色的色调变换和变换来实现。 形成具有用于中性和饱和颜色的指定变换的剩余颜色值作为边界值的变换。 在优选实施例中，使用多维查找表来实现变换。
-
80.发明授权Optimal color quantization for addressing multi-dimensional color calibration look-up-table 失效用于寻址多维颜色校准查找表的最佳颜色量化
公开(公告)号：US5377025A
公开(公告)日：1994-12-27
申请号：US980860
申请日：1992-11-24
CPC分类号： H04N1/60 , H04N1/6019
摘要： This invention minimizes the color errors associated with performing conversion and/or correction of color digital image data using multi-dimensional look-up tables of a limited size. By distributing the errors across the color gamut it is possible to reduce the average color error as well as the maximum color errors associated with linear or conventional linear or nonlinear, e.g. cube-root or logarithmic, remapping schemes. The resulting advantage will be color images with greatly reduced artifacts.
摘要翻译： 本发明使用有限尺寸的多维查找表来最小化与执行彩色数字图像数据的转换和/或校正相关联的颜色误差。 通过在色域上分布错误，可以减少与线性或常规线性或非线性相关联的平均颜色误差以及最大色差。 立方根或对数，重映射方案。 所产生的优点将是具有大大减少的伪影的彩色图像。
-
-
-
-
-
-
-
-
-
搜索结果
98 条记录 (耗时 0.026 秒)
