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公开(公告)号：US07181086B2
公开(公告)日：2007-02-20
申请号：US10163401
申请日：2002-06-06
IPC分类号： G06K9/40
CPC分类号： G06T5/50 , G06T5/007 , G06T5/40 , G06T2207/20016 , G06T2207/20064
摘要： A method of processing a digital image to improve tone scale, includes the steps of: generating a multiresolution image representation of the digital image including a plurality of base digital images and a plurality of residual digital images; applying a texture reducing spatial filter to the base digital images to produce texture reduced base digital images; combining the texture reduced base digital images and the residual digital images s to generate a texture reduced digital image; subtracting the texture reduced digital image from the digital image to produce a texture digital image; applying a compressive tone scale function to the texture reduced digital image to produce a tone scale adjusted digital image having a compressed tone scale in at least a portion of the image; and combining the texture digital image with the tone scale adjusted digital image to produce a processed digital image, whereby the contrast of the digital image is improved without compressing the contrast of the texture in the digital image.
摘要翻译： 一种处理数字图像以改善色阶的方法包括以下步骤：产生包括多个基本数字图像和多个残余数字图像的数字图像的多分辨率图像表示; 对基数字图像应用纹理降低空间滤波器以产生纹理降低的基本数字图像; 组合纹理减少的基本数字图像和残留的数字图像以产生纹理降低的数字图像; 从数字图像中减去纹理缩小的数字图像以产生纹理数字图像; 对所述纹理缩小的数字图像应用压缩色阶函数，以产生在所述图像的至少一部分中具有压缩色阶的色阶调整数字图像; 并且将纹理数字图像与色阶调整后的数字图像组合以产生经处理的数字图像，从而在不压缩数字图像中的纹理的对比度的情况下改善数字图像的对比度。
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62.发明授权公开(公告)号：US07158686B2
公开(公告)日：2007-01-02
申请号：US10246856
申请日：2002-09-19
申请人： Edward B. Gindele
发明人： Edward B. Gindele
摘要： A method of producing a tone scale function which operates on a source digital image to improve tonal characteristics, includes receiving a source digital image including a plurality of pixels; and producing a tone scale function having a highlight tone scale segment and a shadow tone scale segment defined relative to a reference point on the tone scale function, and that is adapted to operate on the source digital image, wherein the highlight tone scale segment is defined by a different mathematical function than the shadow tone scale segment; at least one of the highlight tone scale or shadow tone scale segments have at least one inflection point; the highlight tone scale segment is defined for points that are equal to or greater than the reference point; and the shadow tone scale segment is defined for points that are equal to or less than the reference point.
摘要翻译： 一种产生对源数字图像进行操作以改善色调特征的色阶函数的方法，包括：接收包括多个像素的源数字图像; 并产生具有相对于色标函数上的参考点定义的高亮色调比例段和阴影色阶等级的色调函数，并且适于对源数字图像进行操作，其中定义高亮色调比例段 通过与阴影音阶比例不同的数学函数; 亮点色阶或阴影色调尺度区段中的至少一个具有至少一个拐点; 为等于或大于参考点的点定义高亮色调比例段; 并且对于等于或小于参考点的点来定义阴影色调比例段。
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公开(公告)号：US07092579B2
公开(公告)日：2006-08-15
申请号：US10151623
申请日：2002-05-20
申请人： Navid Serrano , Edward B. Gindele
发明人： Navid Serrano , Edward B. Gindele
IPC分类号： G06K9/40
摘要： A method of estimating the noise in a digital image for use in subsequent image processing, includes receiving a source digital image having a plurality of pixels; selecting a pixel of interest; providing a plurality of orientations for the pixel of interest; using gradient analysis on the source digital image and the plurality of orientations to select the most suitable orientation for estimating noise for the pixel of interest; using the selected orientation in the pixel of interest to determine a noise-free pixel estimate for the pixel of interest; and repeating for other pixels of interest and using the noise-free pixel estimates to calculate a noise characteristic value representing the noise estimate for the source digital image.
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64.发明授权Enhancing the tonal, spatial, and color characteristics of digital images using expansive and compressive tone scale functions 失效使用广泛和压缩色阶函数增强数字图像的色调，空间和颜色特征公开(公告)号：US07058234B2
公开(公告)日：2006-06-06
申请号：US10280369
申请日：2002-10-25
IPC分类号： G06K9/40
CPC分类号： G06K9/40 , G06T5/009 , G06T5/40 , H04N1/6027
摘要： A method of enhancing the tonal and spatial characteristics of a digital image includes receiving a source digital image wherein the source digital image is in a luminance-chrominance representation having a luminance digital image channel and at least two chrominance digital image channels; generating a tone scale function that can be used to enhance the tonal characteristics of the source digital image; and classifying the tone scale function into one of two or more categories wherein the classification categories include expansive and compressive. The method further includes using the tone scale function, a spatial filter, and the luminance digital image channel to generate an enhanced luminance digital image channel when the tone scale function has been classified as compressive, and using the tone scale function and the luminance digital image channel to generate an enhanced luminance digital image channel when the tone scale function has been classified as expansive.
摘要翻译： 增强数字图像的色调和空间特性的方法包括接收源数字图像，其中源数字图像处于具有亮度数字图像通道和至少两个色度数字图像通道的亮度色度表示中; 产生可用于增强源数字图像的色调特性的色阶函数; 并将色阶函数分类为两个或多个类别中的一个，其中分类类别包括扩展和压缩。 该方法还包括当色阶函数被分类为压缩时，使用色阶函数，空间滤波器和亮度数字图像通道来生成增强的亮度数字图像通道，并且使用色阶函数和亮度数字图像 通道，当色阶函数被分类为广泛时产生增强的亮度数字图像通道。
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公开(公告)号：US07046400B2
公开(公告)日：2006-05-16
申请号：US10062911
申请日：2002-01-31
IPC分类号： G06K15/00
CPC分类号： H04N1/407
摘要： A method of processing a digital image to produce an enhanced digital image including receiving a source digital image; receiving a rendering tone scale function wherein the rendering tone scale function is a nonlinear function that has an absolute magnitude slope in the middle of the function domain that is greater than or equal to the absolute magnitude slope at either extreme of the function domain; and using the rendering tone scale function to calculate a de-rendering tone scale function. The method also includes receiving or calculating an adjustment tone scale function; combining the de-rendering, rendering, and adjustment tone scale functions to form an enhancement tone scale function; and using the enhancement tone scale function and the source digital image to produce an enhanced digital image.
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公开(公告)号：US07006252B2
公开(公告)日：2006-02-28
申请号：US09981176
申请日：2001-10-17
CPC分类号： H04N1/4072
摘要： A method for processing a photographic image captured by an image capture system, includes the steps of: determining a maximum dark value for the image capture system representing the response of the system to no light exposure; generating an image processing path for processing the image prior to display on an output device, the image processing path having one or more image dependent image transforms, that upon processing the maximum dark value produces a processed maximum dark value that meets a predetermined criteria for darkness such that the “smokey black” problem is minimized; and applying the image processing path to the photographic image to produce a processed photographic image.
摘要翻译： 一种用于处理由图像拍摄系统拍摄的摄影图像的方法，包括以下步骤：确定表示系统的反应的图像拍摄系统的最大暗值，使其不被曝光; 生成用于在输出设备上显示之前处理图像的图像处理路径，所述图像处理路径具有一个或多个图像相关图像变换，在处理最大暗值时，产生满足黑暗的预定标准的经处理的最大暗值 使“黑烟黑”问题最小化; 以及将图像处理路径应用于摄影图像以产生经处理的照相图像。
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67.发明授权公开(公告)号：US06937772B2
公开(公告)日：2005-08-30
申请号：US09742957
申请日：2000-12-20
申请人： Edward B. Gindele
发明人： Edward B. Gindele
CPC分类号： G06T5/002 , G06T2207/20016
摘要： A method of removing noise from a digital image including receiving an original digital image including a plurality of pixels; generating at least one residual digital image and at least one base digital image from the original digital image, the base digital image having a lower spatial resolution than the original digital image; and generating a noise reduced base digital image by removing noise from the base digital image with a noise reduction filter so that when the noise reduced base digital image is combined with the residual digital image to produce a reconstructed digital image, noise is not present in the reconstructed digital image.
摘要翻译： 一种从数字图像中去除噪声的方法，包括接收包括多个像素的原始数字图像; 从原始数字图像生成至少一个残留数字图像和至少一个基本数字图像，该基本数字图像具有比原始数字图像更低的空间分辨率; 以及通过使用噪声降低滤波器从基数字图像中除去噪声来产生噪声降低的基本数字图像，使得当噪声降低的基本数字图像与残留数字图像组合以产生重建的数字图像时，噪声不存在于 重建数字图像。
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68.发明授权Method of spatially filtering digital image for noise removal, noise estimation or digital image enhancement 有权空间滤波数字图像进行噪声去除，噪声估计或数字图像增强的方法公开(公告)号：US06931160B2
公开(公告)日：2005-08-16
申请号：US09998874
申请日：2001-10-31
申请人： Edward B. Gindele , Navid Serrano
发明人： Edward B. Gindele , Navid Serrano
摘要： A method of spatially filtering a digital image includes receiving a source digital image including pixels corresponding to one or more different colors; selecting a pixel of interest in the source digital image; calculating two or more noise free pixel estimates for the pixel of interest using pixel values sampled in a local region about the pixel of interest; selecting a final noise free pixel estimate for the pixel of interest from the noise free pixel estimates; and repeating for other pixels in the source digital image to provide a spatially filtered digital image.
摘要翻译： 空间滤波数字图像的方法包括接收包括与一种或多种不同颜色对应的像素的源数字图像; 在源数字图像中选择感兴趣的像素; 使用在关注像素的局部区域中采样的像素值来计算感兴趣像素的两个或更多个无噪声像素估计; 从无噪声像素估计中选择感兴趣像素的最终无噪声像素估计; 并对源数字图像中的其他像素进行重复以提供空间滤波的数字图像。
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公开(公告)号：US06856704B1
公开(公告)日：2005-02-15
申请号：US09661268
申请日：2000-09-13
IPC分类号： G06T11/60 , G06T5/20 , G06T7/00 , H04N1/409 , H04N1/46 , H04N1/60 , G06K9/40 , G09G5/00 , H04N1/40
摘要： A method is described for enhancing a color digital image by first identifying a local neighborhood of pixels including a pixel of interest and then using the color values of one or more of the pixels from the local neighborhood to calculate a color weighting factor for the pixel of interest, where the color weighting factor is a near continuous function of the location of the pixel of interest in a color space. A spatial filter is applied to the values of pixels from the local neighborhood to calculate a first signal value and a second signal value for the pixel of interest. The color weighting factor is then used to modify either the first value or the second value, and an enhanced pixel value is then generated for the pixel of interest from the first value and second values. The process is then repeated for other pixels in the color digital image.
摘要翻译： 描述了一种用于通过首先识别包括感兴趣像素的像素的局部邻域，然后使用来自局部邻域的一个或多个像素的颜色值来计算彩色数字图像的像素的颜色加权因子来增强彩色数字图像的方法 兴趣，其中颜色加权因子是在颜色空间中感兴趣的像素的位置的接近连续的函数。 将空间滤波器应用于来自本地邻域的像素的值，以计算感兴趣像素的第一信号值和第二信号值。 然后使用颜色加权因子来修改第一值或第二值，然后从第一值和第二值为感兴趣的像素生成增强像素值。 然后对彩色数字图像中的其他像素重复该过程。
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70.发明授权Method for enhancing a digital image with noise-dependent control of texture 有权用于增强纹理噪声相关控制的数字图像的方法公开(公告)号：US06804408B1
公开(公告)日：2004-10-12
申请号：US09470729
申请日：1999-12-22
IPC分类号： G06T500
CPC分类号： H04N1/58
摘要： A method is described for enhancing a digital image channel, e.g., a channel comprising a texture signal, by providing a predetermined estimate of the noise expected for the digital channel based on a predetermined relationship between the image intensity values and the expected noise for given intensities. After a local estimate of signal activity is generated for the digital image channel, a gain adjustment is generated from the predetermined estimate of noise and the local estimate of signal activity; the gain adjustment is applied to the image pixels in the digital channel in order to generate a digital channel with enhanced image values.
摘要翻译： 描述了一种用于通过基于图像强度值和给定强度的预期噪声之间的预定关系提供对数字信道预期的噪声的预定估计来增强数字图像信道（例如，包括纹理信号的信道）的方法 。 在对数字图像通道产生信号活动的局部估计之后，从预定的噪声估计和信号活动的局部估计产生增益调整; 增益调整被应用于数字通道中的图像像素，以便生成具有增强的图像值的数字通道。
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