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公开(公告)号：US06809838B1
公开(公告)日：2004-10-26
申请号：US09691866
申请日：2000-10-19
IPC分类号： G06F1500
CPC分类号： H04N1/6097 , H04N1/608
摘要： A method for constructing a transform for a predetermined display or printer, such printer or display being adapted to form a color image, on a particular medium, with extended chroma values while maintaining existing luminance values, the input to the transform including an input color digital image produced by a particular image capture device, the method includes providing a luminance reproduction curve in response to the input color digital image which, for any input luminance value, will produce an output luminance value, the luminance reproduction curve being selected to preserve highlight and midtone contrast, and shadow detail from the input color digital image; providing a plurality of selective luminance independent chromatic reproduction curves in response to the input color digital image which, for any input chroma value, will produce an output chroma value; and the chromatic reproduction curves being selected so that each curve is a function of the visual density range of the display or medium and the image chroma values wherein small chroma values remain unchanged and large chroma values are modified to extend chroma values while maintaining existing luminance values for a particular device or medium whereby a user can select one or more of the chromatic reproduction curves which, in combination with the luminance reproduction curve, produces color digital images so that a selected printer or display can form a color image, on a particular medium, with extended chroma values.
摘要翻译： 一种用于在保持现有亮度值的情况下，在具有扩展色度值的特定介质上构造用于预定显示器或打印机的这种打印机或显示器的这种打印机或显示器的变换的方法，所述变换的输入包括输入颜色数字 该方法包括响应于输入彩色数字图像提供亮度再现曲线，对于任何输入亮度值将产生输出亮度值，选择亮度再现曲线以保持高光，并且 中间色对比度和阴影细节从输入彩色数字图像; 提供响应于输入彩色数字图像的多个选择性亮度独立的彩色再现曲线，对于任何输入色度值，其将产生输出色度值; 并且选择彩色再现曲线，使得每个曲线是显示器或介质的视觉浓度范围的函数，以及其中小色度值保持不变并且修改大色度值以增加色度值同时保持现有亮度值的图像色度值 对于特定的设备或介质，用户可以选择一个或多个彩色再现曲线，其与亮度再现曲线结合产生彩色数字图像，使得所选择的打印机或显示器可以在特定介质上形成彩色图像 ，具有扩展色度值。
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公开(公告)号：US06229624B1
公开(公告)日：2001-05-08
申请号：US09057903
申请日：1998-04-09
IPC分类号： B41B1500
CPC分类号： H04N1/6027 , H04N1/6086 , H04N1/6088 , H04N1/6097
摘要： A method for selecting an aim curve for a desired medium having a predetermined maximum density, including selecting an aim curve from a family of aim curves for a different medium having a lower predetermined maximum density than that of the desired medium, the aim curve having shadow, midtone, and highlight regions; varying the shadow contrast in the shadow region of the selected aim curve to produce a different aim curve; and determining the different aim curve with the desired medium that has an improved shadow contrast that will produce prints with reduced flare and permits a better fit of the dynamic range of the original scene to the dynamic range of the medium.
摘要翻译： 一种用于选择具有预定最大密度的期望介质的目标曲线的方法，包括从具有比预期介质的预定最大密度低的不同介质的目标曲线族选择目标曲线，目标曲线具有阴影 ，中音和高光区域; 改变所选目标曲线的阴影区域中的阴影对比度，以产生不同的目标曲线; 并且使用具有改善的阴影对比度的期望介质来确定不同的目标曲线，该对比度将产生具有减少的耀斑的打印，并且允许将原始场景的动态范围更好地拟合到介质的动态范围。
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公开(公告)号：US07844127B2
公开(公告)日：2010-11-30
申请号：US11694034
申请日：2007-03-30
CPC分类号： H04N9/045 , G06T3/4015 , G06T5/002 , G06T5/003 , G06T2207/10024 , H04N1/58 , H04N2209/046
摘要： A method of enhancing a full-color image of a scene includes capturing an image of the scene using a two-dimensional sensor array having both color and panchromatic pixels, forming the full-color image in response to the captured color pixels, forming a reference panchromatic image in response to the captured panchromatic pixels, forming an edge map in response to the reference panchromatic image and using the edge map to enhance the full-color image.
摘要翻译： 增强场景的全色图像的方法包括使用具有彩色和全色像素的二维传感器阵列来捕获场景的图像，响应于所捕获的彩色像素形成全色图像，形成参考 响应于所捕获的全色像素的全色图像，响应于参考全色图像形成边缘图并且使用边缘图来增强全色图像。
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公开(公告)号：US07688368B2
公开(公告)日：2010-03-30
申请号：US11341210
申请日：2006-01-27
IPC分类号： H04N3/14
CPC分类号： H04N9/045 , H04N2209/046
摘要： An image sensor for capturing a color image is disclosed having a two-dimensional array having first and second groups of pixels, arranged in rows and columns, wherein pixels from the first group of pixels have narrower spectral photoresponses than pixels from the second group of pixels; and the placement of the first and second groups of pixels defining a pattern that has a minimal repeating unit including at least six pixels, so that at least some rows or columns of the minimal repeating unit are composed only of pixels from the second group and some rows or columns of the minimal repeating unit are composed only of pixels from the first group, wherein the rows or columns that are composed only of pixels from the first group are composed of at most two colors of pixels from the first group.
摘要翻译： 公开了一种用于捕获彩色图像的图像传感器，其具有排列成行和列的第一和第二组像素的二维阵列，其中来自第一组像素的像素具有比来自第二像素组的像素更窄的光谱光响应 ; 以及所述第一和第二组像素的放置限定具有包括至少六个像素的最小重复单元的图案，使得所述最小重复单元的至少一些行或列仅由来自所述第二组的像素和一些 最小重复单元的行或列仅由来自第一组的像素组成，其中仅来自第一组的像素组成的行或列由至少两个来自第一组的像素的颜色组成。
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公开(公告)号：US06259822B1
公开(公告)日：2001-07-10
申请号：US09183147
申请日：1998-10-30
IPC分类号： G29G502
CPC分类号： G06T5/002 , G06T5/003 , G06T5/20 , G06T2207/20012 , G06T2207/20192
摘要： A method of edge enhancing a digital image having pixels which reduces the visibility of false edge contours and includes acquiring a digital image; computing an edge boost record having positive and negative boost values for different portions of the edge regions in a digital image; modifying the edge boost record by applying an adaptive blur kernel to the pixels of such edge boost record; and applying the modified edge boost record to the digital image to provide an edge enhanced digital image which reduces the visibility of false edge contours.
摘要翻译： 一种边缘增强具有降低假边缘轮廓的可视性的像素的数字图像的方法，包括获取数字图像; 计算对于数字图像中的边缘区域的不同部分具有正和负升压值的边缘增强记录; 通过将自适应模糊核应用于这种边缘增强记录的像素来修改边缘提升记录; 以及将修改的边缘增强记录应用于数字图像以提供边缘增强的数字图像，其降低假边缘轮廓的可视性。
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6.发明授权
公开(公告)号：US6075889A
公开(公告)日：2000-06-13
申请号：US96632
申请日：1998-06-12
CPC分类号： G06T3/4015 , G06T3/4007 , G06T3/403 , H04N9/045 , H04N2209/041 , H04N2209/046
摘要： In apparatus for processing a digital color image value originally obtained from an image sensor or the like having color image pixels aligned in rows and columns having diagonal pixels with sufficient information to permit luminance or chrominance estimation the digital image having at least three separate color values but only one color value for each image pixel location, such apparatus computing the luminance or chrominance values for each image pixel. The apparatus stores the digital image and includes a processor operatively associated with the stored image and responsive to said stored measured digital color image values for computing low frequency luminance or chrominance values. In response to the computed low frequency luminance or chrominance values the Laplacian second-order and gradient values in at least two image orientations are computed from neighboring image pixels. The Laplacian second-order and the gradient values are combined to define a value for each image pixel such that there are sets of values with each value corresponding to a classifier and for selecting a preferred orientation from a group of orientations for the interpolation based upon the classifier. Finally, in response to the preferred orientation and the measured digital image for estimating the luminance or chrominance value for each corresponding image pixel.
摘要翻译： 在用于处理最初从图像传感器等获得的数字彩色图像值的装置中，其具有以具有足够信息的对角像素的行和列排列的彩色图像像素以允许亮度或色度估计的数字图像，其具有至少三个分离的颜色值，但是 每个图像像素位置仅一个颜色值，这样的设备计算每个图像像素的亮度或色度值。 该装置存储数字图像并且包括与所存储的图像可操作地相关联的处理器，并响应于所述存储的测量数字彩色图像值以计算低频亮度或色度值。 响应于计算出的低频亮度或色度值，从相邻图像像素计算至少两个图像取向中的拉普拉斯算子二阶梯度值和梯度值。 拉普拉斯二阶和梯度值被组合以定义每个图像像素的值，使得存在具有对应于分类器的每个值的值的集合，并且用于基于用于插值的一组取向来选择优选取向 分类器 最后，响应于优选的取向和用于估计每个对应的图像像素的亮度或色度值的所测量的数字图像。
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公开(公告)号：US5596367A
公开(公告)日：1997-01-21
申请号：US606178
申请日：1996-02-23
CPC分类号： H04N9/045 , H04N2209/046
摘要： Apparatus described for processing a digitized image signal obtained from an image sensor having red, green, and blue color photosites aligned in rows and columns that generate at least three separate color values but only one color value for each photosite location. An arrangement is disclosed for averaging existing green values for green photosite locations which includes structure for storing the digitized image signal, defining green classifiers based upon adding the Laplacian second-order values, and the gradient values to define a classsifier, and modifying a measured green pixel based upon adjacent pixel classifiers. The apparatus further includes structure for determining which classifiers represent a pixel neighborhood of slowly changing scene detail, and replacing the measured green values for a green photosite location with an average of surrounding predicted green pixels as a function of the number of classifiers which are below a predetermined value.
摘要翻译： 用于处理从具有以行和列排列的红色，绿色和蓝色彩色光泽的图像传感器获得的数字化图像信号的装置，其产生至少三个分离的颜色值，但是对于每个光斑位置仅产生一个颜色值。 公开了一种用于平均绿色光电位置的现有绿色值的布置，其包括用于存储数字化图像信号的结构，基于添加拉普拉斯二阶值来定义绿色分类器，以及梯度值以定义分类器，以及修改测量的绿色 基于相邻像素分类器的像素。 该装置还包括用于确定哪些分类器表示缓慢变化的场景细节的像素邻域的结构，并且将绿色光斑位置的测量绿色值替换为周围预测的绿色像素的平均值作为下面的分类器的数量的函数 预定值。
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公开(公告)号：US08330839B2
公开(公告)日：2012-12-11
申请号：US13424138
申请日：2012-03-19
CPC分类号： H04N9/045
摘要： An image sensor for capturing a color image is disclosed having a two-dimensional array having first and second groups of pixels wherein pixels from the first group of pixels have narrower spectral photoresponses than pixels from the second group of pixels and wherein the first group of pixels has individual pixels that have spectral photoresponses that correspond to a set of at least two colors. Further, the placement of the first and second groups of pixels defines a pattern that has a minimal repeating unit including at least twelve pixels. The minimal repeating unit has a plurality of cells wherein each cell has at least two pixels representing a specific color selected from the first group of pixels and a plurality of pixels selected from the second group of pixels arranged to permit the reproduction of a captured color image under different lighting conditions.
摘要翻译： 公开了一种用于捕获彩色图像的图像传感器，其具有具有第一和第二组像素的二维阵列，其中来自第一组像素的像素具有比来自第二组像素的像素更窄的光谱光响应，并且其中第一组像素 具有对应于一组至少两种颜色的光谱反应的单个像素。 此外，第一和第二组像素的放置限定了具有包括至少十二个像素的最小重复单元的图案。 最小重复单元具有多个单元，其中每个单元具有表示从第一组像素选择的特定颜色的至少两个像素，以及从被布置成允许再现捕获的彩色图像的第二组像素中选择的多个像素 在不同的照明条件下。
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公开(公告)号：US08111307B2
公开(公告)日：2012-02-07
申请号：US12258389
申请日：2008-10-25
CPC分类号： H04N9/045 , H04N5/3675
摘要： A method of improving a first color filter array image from an image sensor having a plurality of color channels and a panchromatic channel, includes capturing the panchromatic channel at a different exposure time than at least one of the color channels with the image sensor; using the color channels to provide a luminance channel; and analyzing the color filter array image and the luminance channel to determine defective pixels in the color channels and using neighboring color and luminance pixel values to improve the defective pixels to produce a second color filter array image or full-color image having at least one improved channel.
摘要翻译： 从具有多个颜色通道和全色通道的图像传感器改进第一滤色器阵列图像的方法包括以与图像传感器的色彩通道中的至少一个不同的曝光时间捕获全色通道; 使用颜色通道提供亮度通道; 以及分析所述滤色器阵列图像和所述亮度通道以确定所述颜色通道中的有缺陷的像素并使用相邻的颜色和亮度像素值来改善所述缺陷像素以产生具有至少一个改进的第二滤色器阵列图像或全色图像 渠道。
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公开(公告)号：US07940236B2
公开(公告)日：2011-05-10
申请号：US11737786
申请日：2007-04-20
CPC分类号： G09G3/3216 , G09G2310/0208 , G09G2320/0247 , G09G2320/043 , G09G2330/025
摘要： A passive matrix, electro-luminescent display system has a passive matrix, electro-luminescent display having an orthogonally oriented array of column and row electrodes and an electro-luminescent layer located between the electrodes at the intersection of each column and row electrode forming an individual light-emitting element. Drivers provide separate signals at different times to different groups of row electrodes within the array of row electrodes; wherein the row electrodes of each group simultaneously receive at least two different level signals. A display driver receives and processes the input image signal to provide a presharpened image control signal. Column drivers respond to the presharpened image control signal for simultaneously providing a signal to the multiple column electrodes within the array of column electrodes at the same time signals are provided to the groups of row electrodes so that the concurrence of row and column signals causes individual light-emitting element to produce light.
摘要翻译： 无源矩阵电致发光显示系统具有无源矩阵，具有垂直取向的列和行电极阵列的电致发光显示器，以及位于每个列和行电极的交点处的电极之间的电致发光层，形成一个单独的 发光元件。 驱动器在不同时间向行电极阵列内的不同组的行电极提供单独的信号; 其中每组的行电极同时接收至少两个不同的电平信号。 显示驱动器接收并处理输入图像信号以提供预先硬化的图像控制信号。 色谱柱驱动器响应预制图像控制信号，以同时向列电极阵列内的多列电极提供信号，同时向行电极组提供信号，使得行和列信号的一致性导致单独的光 发光元件产生光。
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