Color transformation for processing digital images
    1.
    发明授权
    Color transformation for processing digital images 失效
    用于处理数字图像的颜色转换

    公开(公告)号:US06956967B2

    公开(公告)日:2005-10-18

    申请号:US10151622

    申请日:2002-05-20

    摘要: A method of transforming the color appearance of a plurality of digital images includes receiving a plurality of digital images from a capture medium wherein each digital image includes a plurality of pixel values relating to at least three basic colors; calculating a color correction transform by using a non-linear adjustment that is independent of the digital images and which corrects an under-exposure condition as a function of the capture medium; and a linear functional relationship dependent upon the pixels of the basic colors, the linear functional relationship defining an exposure-level-dependent estimate of gray corresponding to the photographic response of the capture medium; and using the color correction transform to modify the pixels of the plurality of digital images wherein the pixels within a digital image are transformed with varying degrees of color modification as a function of exposure.

    摘要翻译: 一种变换多个数字图像的颜色外观的方法包括从捕获介质接收多个数字图像,其中每个数字图像包括与至少三种基本颜色相关的多个像素值; 通过使用独立于数字图像并且根据捕获介质校正曝光不足的条件的非线性调整来计算颜色校正变换; 以及取决于所述基本颜色的像素的线性函数关系,所述线性函数关系定义与所述捕获介质的照相响应相对应的与曝光级相关的灰度估计; 以及使用所述颜色校正变换来修改所述多个数字图像中的像素,其中数字图像内的像素以不同程度的颜色修改作为曝光的函数被变换。

    Constructing extended color gamut digital images from limited color gamut digital images
    2.
    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。

    Selection of alternative image processing operations to maintain high image quality
    3.
    发明授权
    Selection of alternative image processing operations to maintain high image quality 有权
    选择替代图像处理操作以保持高图像质量

    公开(公告)号:US07570829B2

    公开(公告)日:2009-08-04

    申请号:US11059935

    申请日:2005-02-17

    IPC分类号: G06K9/62 G06K9/40

    摘要: In an image enhancement method, a regular enhancement function and an aggressiveness parameter are computed using characteristics of a digital image. A first, relatively slow enhancement algorithm is applied to the digital image using the regular enhancement function, when an aggressiveness parameter is in a predetermined high range. A second, relatively fast enhancement algorithm is applied to the digital image using the regular enhancement function, when an aggressiveness parameter is in a predetermined low range. A modified enhancement function is calculated using characteristics of the digital image and is used with a second, relatively fast enhancement algorithm, when the aggressiveness parameter is in a predetermined medium range.

    摘要翻译: 在图像增强方法中,使用数字图像的特征来计算常规增强函数和侵略性参数。 当攻击性参数处于预定的高范围时,使用常规增强功能将第一相对较慢的增强算法应用于数字图像。 当攻击性参数处于预定的低范围时,使用常规增强功能将第二相对较快的增强算法应用于数字图像。 使用数字图像的特性来计算修改的增强函数,并且当攻击性参数处于预定的中等范围时,使用第二相对较快的增强算法。

    Applying an adjusted image enhancement algorithm to a digital image
    4.
    发明授权
    Applying an adjusted image enhancement algorithm to a digital image 有权
    将调整后的图像增强算法应用于数字图像

    公开(公告)号:US07428332B2

    公开(公告)日:2008-09-23

    申请号:US10757055

    申请日:2004-01-14

    IPC分类号: G06K9/00 G06K9/40

    摘要: A method is described for applying an image enhancement algorithm to input digital images represented in different input color spaces including identifying the input color space of an input digital image, and applying a color space transformation to the input digital image represented in the input color space to form a corresponding input digital image in a reference color space. The method also includes adjusting one or more algorithm parameters of the image enhancement algorithm in response to the identified input color space, and applying the image enhancement algorithm with the one or more adjusted algorithm parameters to the corresponding input digital image in the reference color space to produce an enhanced digital image in the reference color space.

    摘要翻译: 描述了一种用于应用图像增强算法来输入在不同输入颜色空间中表示的数字图像的方法,包括识别输入数字图像的输入颜色空间,以及将颜色空间变换应用于在输入颜色空间中表示的输入数字图像, 在参考颜色空间中形成相应的输入数字图像。 该方法还包括响应于所识别的输入颜色空间来调整图像增强算法的一个或多个算法参数,以及将具有一个或多个经调整的算法参数的图像增强算法应用于参考颜色空间中的对应输入数字图像, 在参考色彩空间中产生增强的数字图像。

    Color image reproduction of scenes with preferential color mapping and scene-dependent tone scaling
    5.
    发明授权
    Color image reproduction of scenes with preferential color mapping and scene-dependent tone scaling 有权
    具有优惠色彩映射和场景相关音调缩放的场景的彩色图像再现

    公开(公告)号:US06594388B1

    公开(公告)日:2003-07-15

    申请号:US09578463

    申请日:2000-05-25

    IPC分类号: G06K900

    CPC分类号: H04N1/6027 H04N1/6072

    摘要: A method for enhancing the hue and lightness characteristics of a digital color image, the digital color image having pixel values from which digital luminance and color difference values can be deduced, includes the steps of: deducing digital luminance and digital color difference values for pixels of the digital color image; using the pixels of the digital color image to calculate an image dependent transform; using the image dependent transform to modify the digital luminance values for pixels of the digital color image to form modified luminance values; calculating a color transform that modifies the original digital color difference values in a manner that consistently and smoothly moves the values toward or away from predetermined digital color difference values; and using the color transform to modify the original color difference values for pixels of the digital color image to produce modified color difference values.

    摘要翻译: 一种用于增强数字彩色图像的色相和亮度特性的方法,具有可从其推导数字亮度和色差值的像素值的数字彩色图像包括以下步骤:将数字亮度和数字色差值推算为 数字彩色图像; 使用数字彩色图像的像素来计算图像相关变换; 使用图像相关变换来修改数字彩色图像的像素的数字亮度值,以形成修正的亮度值; 计算以一致且平滑地将数值移动到或远离预定数字色差值的方式修改原始数字色差值的颜色变换; 并使用颜色变换来修改数字彩色图像的像素的原始色差值,以产生修改的色差值。

    Method for determining a bounding surface for segmentation of an anatomical object of interest
    6.
    发明授权
    Method for determining a bounding surface for segmentation of an anatomical object of interest 失效
    用于确定感兴趣的解剖学对象的分割的边界表面的方法

    公开(公告)号:US08150120B2

    公开(公告)日:2012-04-03

    申请号:US12341000

    申请日:2008-12-22

    IPC分类号: G06K9/00 G06T17/00

    摘要: A method of bounding an anatomical object of interest in a 3-dimensional volume image includes displaying an image of at least a portion of the object, selecting a plurality of points in the displayed image, at least a first and second point of the plurality of points spanning the object, forming a non-rectilinear surface bounding the plurality of points, identifying a seed point within the surface and extracting a plurality of statistical values corresponding to image voxels disposed proximate the seed point, and classifying image voxels within the surface into a first class and a second class based on the plurality of statistical values.

    摘要翻译: 在三维体积图像中界定感兴趣的解剖学对象的方法包括显示所述对象的至少一部分的图像,在所显示的图像中选择多个点,所述多个图像中的至少第一和第二点 跨越对象的点,形成界定多个点的非直线表面,识别表面内的种子点,并提取对应于靠近种子点设置的图像体素的多个统计值,以及将表面内的图像体素分类为 基于多个统计值的第一类和第二类。

    METHOD FOR EDITING 3D IMAGE SEGMENTATION MAPS
    7.
    发明申请
    METHOD FOR EDITING 3D IMAGE SEGMENTATION MAPS 有权
    用于编辑3D图像分段的方法

    公开(公告)号:US20090279756A1

    公开(公告)日:2009-11-12

    申请号:US12341022

    申请日:2008-12-22

    IPC分类号: G06K9/00 G06T15/20

    摘要: A digital image editing method includes receiving a three-dimensional volume image of an anatomical object of interest, wherein the volume image is characterized by first and second mutually exclusive segmentation classes. The method also includes deriving a two-dimensional slice image from the volume image, selecting a single point on the slice image within the second segmentation class, and defining a plane in response to the selection of the single point, the plane dividing the second segmentation class into a target portion corresponding to the object and a remainder portion.

    摘要翻译: 数字图像编辑方法包括接收感兴趣的解剖学对象的三维体积图像,其中体积图像的特征在于第一和第二相互排斥的分割类别。 该方法还包括从卷图像中导出二维切片图像,在第二分割类别内选择切片图像上的单个点,以及响应于单个点的选择定义平面,该平面将第二分割 类进入与对象相对应的目标部分和余数部分。

    ANALYZING LESIONS IN A MEDICAL DIGITAL IMAGE
    8.
    发明申请
    ANALYZING LESIONS IN A MEDICAL DIGITAL IMAGE 有权
    医学数字图像分析

    公开(公告)号:US20080137921A1

    公开(公告)日:2008-06-12

    申请号:US11567857

    申请日:2006-12-07

    IPC分类号: G06K9/00

    摘要: A method of analyzing a lesion in a medical digital image using at least one point contained within a lesion to be analyzed includes propagating a wave-front surface from the point(s) for a plurality of steps; partitioning the wave-front surface into a plurality of wave-front parts wherein each wave-front part is associated with a different portion of the wave-front surface corresponding to a previous propagation step; and analyzing at least one feature associated with each wave-front part to classify anatomical structures associated with the lesion and normal anatomy within the medical digital image.

    摘要翻译: 使用包含在待分析的病变内的至少一个点来分析医学数字图像中的病变的方法包括:从多个点传播波前表面多个步骤; 将波前表面分割为多个波前部分,其中每个波前部分与波前表面的与先前传播步骤相对应的不同部分相关联; 以及分析与每个波前部分相关联的至少一个特征以对与所述医学数字图像内的病变和正常解剖结构相关联的解剖结构进行分类。

    Enhancing the tonal characteristics of digital images

    公开(公告)号:US07113649B2

    公开(公告)日:2006-09-26

    申请号:US10178260

    申请日:2002-06-24

    申请人: Edward B. Gindele

    发明人: Edward B. Gindele

    IPC分类号: G06K9/40

    CPC分类号: H04N1/4074

    摘要: A method of producing a tone scale function which can operate on a source digital image to improve tonal characteristics, includes generating the 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 to improve its tonal characteristics by: using a first function with a monotonically decreasing slope characteristic to produce the highlight tone scale segment that includes points that are equal to or greater than the reference point; and using a second function with a monotonically increasing slope characteristic to produce the shadow tone scale segment that includes points that are equal to or less than the reference point.

    Photography systems and methods utilizing filter-encoded images
    10.
    发明授权
    Photography systems and methods utilizing filter-encoded images 有权
    使用滤波器编码图像的摄影系统和方法

    公开(公告)号:US07092628B2

    公开(公告)日:2006-08-15

    申请号:US10269598

    申请日:2002-10-11

    IPC分类号: G03B17/24 G03B17/52

    摘要: In a photography method, a film image is scanned and digitized to provide a digital image. An identifier associated with the film image is read. The identifier points to a group of filter effects. Each filter effect has a preassigned digital modification. The modifications are not remedial for the respective filter effects. One of the filter effects is detected in the digital image. Responsive to the detecting of that filter effect, the preassigned digital modification is applied to the digital image.

    摘要翻译: 在摄影方法中,电影图像被扫描并数字化以提供数字图像。 读取与电影图像相关联的标识符。 标识符指向一组过滤器效果。 每个滤镜效果都有一个预分配的数字修改。 这些修改对于相应的过滤器效果不是补救。 在数字图像中检测到滤波效果之一。 响应于该滤波效果的检测,将预分配的数字修改应用于数字图像。