Method for compensating for color differences between different images of a same scene
    1.
    发明公开
    Method for compensating for color differences between different images of a same scene 审中-公开
    补偿同一场景的不同图像之间的颜色差异的方法

    公开(公告)号:EP3001668A1

    公开(公告)日:2016-03-30

    申请号:EP14306471.5

    申请日:2014-09-24

    IPC分类号: H04N1/60

    摘要: The method comprises the steps of:
    - for each combination of a first and second illuminants, applying its corresponding chromatic adaptation matrix to the colors of a first image to compensate such as to obtain chromatic adapted colors forming a chromatic adapted image and calculating the difference between the colors of a second image and the chromatic adapted colors of this chromatic adapted image,
    - retaining the combination of first and second illuminants for which the corresponding calculated difference is the smallest,
    - compensating said color differences by applying the chromatic adaptation matrix corresponding to said retained combination to the colors of said first image.

    摘要翻译: 该方法包括以下步骤: - 用于在第一和第二光源的每一种组合,将其对应的色彩适应矩阵到第一图像的颜色以补偿:诸如以获取彩色angepasst颜色形成彩色angepasst图像并计算之间的差 第二图像和此色angepasst图像的色angepasst颜色的颜色 - 保持第一和第二光源的组合的量,对应的计算的差异是最小的, - 通过将所述色彩适应矩阵补偿所述颜色差异对应于所述 保持组合所述第一图像的颜色。

    Method of mapping source colors of images of a video content into the target color gamut of a target color device
    3.
    发明公开
    Method of mapping source colors of images of a video content into the target color gamut of a target color device 审中-公开
    在的目标彩色设备的颜色的目标范围为视频内容的图像的源色彩的分配的方法

    公开(公告)号:EP2890107A1

    公开(公告)日:2015-07-01

    申请号:EP13306869.2

    申请日:2013-12-26

    申请人: Thomson Licensing

    IPC分类号: H04N1/60

    摘要: According to the invention, the mapping operations are subdivided into two main steps : first, a content-dependent mapping of colors from a source content color gamut into an intermediate color gamut which is common to all images to map, and second, a device-dependent mapping of colors from this intermediate color gamut into the target color gamut.

    摘要翻译: 。根据本发明,映射操作被细分为两个主要步骤:首先,从源内容的色域颜色的依赖于内容的映射到在中间色域的所有这是共同的所有图像映射,和第二,一种与设备 从该中间色域到目标色域的颜色相关的映射。

    Method of mapping source colors from a source color gamut into a target color gamut
    4.
    发明公开
    Method of mapping source colors from a source color gamut into a target color gamut 审中-公开
    埃菲尔·法尔福恩·冯·奎尔法恩

    公开(公告)号:EP2887636A2

    公开(公告)日:2015-06-24

    申请号:EP14198090.4

    申请日:2014-12-16

    申请人: Thomson Licensing

    IPC分类号: H04N1/60

    摘要: The method comprises:
    - either a first step of color gamut mapping applied directly to the incoming RGB color coordinates resulting into mapped source coordinates R"G"B" and a second step where these source coordinates are transformed into target coordinates R'G'B',
    - or, a first step where the incoming source coordinates RGB are transformed into target coordinates R"G"B" and a second step of color gamut mapping applied directly to the target coordinates R"G"B" resulting into mapped target coordinates R'G'B'.

    摘要翻译: 该方法包括: - 颜色映射的第一步骤直接应用于输入的RGB色坐标,得到映射源坐标R“G”B“,第二步是将这些源坐标转换成目标坐标R'G'B '或 - 或者,将入射源坐标RGB的第一步骤变换为目标坐标R“G”B“,并且将色域映射的第二步骤直接应用于导致映射目标坐标的目标坐标R”G“B” R'G'B”。

    Color improvement of selected part of an image
    5.
    发明公开
    Color improvement of selected part of an image 审中-公开
    Farbverbesserung einesausgewähltenTeils eines Bildes

    公开(公告)号:EP2871634A1

    公开(公告)日:2015-05-13

    申请号:EP13306523.5

    申请日:2013-11-06

    申请人: Thomson Licensing

    IPC分类号: G09G5/02

    摘要: This method comprises notably the steps of:
    - color transforming the selected part of this image,
    - color calibrating these selected part such that a first display device reproduces approximately the same colors as a second display device,
    - replacing the selected part of this image by this transformed and calibrated selected part.

    摘要翻译: 该方法特别包括以下步骤: - 对该图像的所选部分进行颜色变换, - 对这些选定部分进行颜色校准,使得第一显示装置再现与第二显示装置大致相同的颜色, - 将该图像的所选部分替换为 这个变换和校准的选定部分。

    Method of embedding of an image with a color transform
    6.
    发明公开
    Method of embedding of an image with a color transform 有权
    Verfahren zur Einbettung eines Bildes mit einer Farbtransformation

    公开(公告)号:EP2874398A3

    公开(公告)日:2015-06-10

    申请号:EP14191654.4

    申请日:2014-11-04

    申请人: Thomson Licensing

    摘要: The method comprises the generation of a deteriorated image associated with a first bit rate (R1) and of a deteriorated color transform associated with a second bit rate (R2), an evaluation of a first distortion (dE1) by comparison of the image with a first test image obtained by the application of the color transform to the deteriorated image, and of a second distortion (dE2) by comparison of the image with a second test image obtained by the application of the deteriorated color transform to the image, and the determination of a final conjoint bit rate (R f ) associated with a best trade-off between a conjoint bit rate (R = R1 + R2) and a global distortion (dE = dE1+DE2).
    The optimized deteriorated image and the optimized deteriorated color transform are then embedded based on this conjoint bit rate (R f ).

    摘要翻译: 该方法包括产生与第一比特率(R1)相关联的劣化图像和与第二比特率(R2)相关联的劣化颜色变换,通过将图像与图像比较,评估第一失真(dE1) 通过将图像与通过应用恶化的颜色变换获得的第二测试图像与图像进行比较,通过将颜色变换应用于劣化图像而获得的第一测试图像和第二失真(dE2),并且确定 (R = R1 + R2)和全局失真(dE = dE1 + DE2)之间的最佳权衡关系的最终联合比特率(R f)。 然后基于该联合位速率(R f)嵌入优化的劣化图像和优化的劣化颜色变换。

    Method and device for processing of non-aligned images and corresponding computer programme
    8.
    发明公开
    Method and device for processing of non-aligned images and corresponding computer programme 审中-公开
    方法和非对准的图像处理装置和对应的计算机程序

    公开(公告)号:EP2843619A3

    公开(公告)日:2015-03-11

    申请号:EP14180531.7

    申请日:2014-08-11

    申请人: Thomson Licensing

    IPC分类号: G06T7/00

    摘要: The invention relates to a method for image processing implementing a first step of alignment (11) of at least two images representative of a same scene and having different colours, known as source image and target image respectively, delivering a first aligned image.
    According to the invention, such a method also implements:
    - a second step of alignment (12) of said source image and said first aligned image, delivering a second aligned image,
    - a step of construction (13) of a confidence mask, corresponding to an image identifying the regions in which said first aligned image is correctly aligned with said second aligned image.

    摘要翻译: 本发明涉及一种用于图像处理实现对准(11)的至少两个图像代表同一场景中的第一步骤,并且具有不同的颜色,分别被称为源图像和目标图像,输送第一对准图像。 。根据本发明,寻求一种方法从而实现了: - 所述源图像和所述第一对准图像的对准(12)的第二步骤中,递送第二对准图像, - 结构的信心掩模的步骤(13),对应 的图像识别,其中所述第一对准图像被正确地与所述第二对准图像对准的区域。

    Method for controlling an image display device to allow an observer to perceive colours as another observer
    9.
    发明公开
    Method for controlling an image display device to allow an observer to perceive colours as another observer 有权
    启用方法,以便使观察者能够感知的颜色作为其他观察者一种控制图像显示装置

    公开(公告)号:EP2743657A1

    公开(公告)日:2014-06-18

    申请号:EP12306582.3

    申请日:2012-12-13

    申请人: Thomson Licensing

    IPC分类号: G01J3/46

    摘要: Method for transforming a first version of a color to be reproduced by a proof viewing device a into a second version of the same color to be reproduced by the same proof viewing device in a way that a first human observer perceives this color reproduced on said proof viewing device according to said second version as this color is perceived on a final color reproduction device by a second human observer having human visual characteristics different from those of the first observer.

    摘要翻译: 用于变换的颜色的第一版本的方法由一个证明观看设备一个到相同的颜色,以通过相同的证明的方式观看设备没有一个第一人类观察者被再现的第二版本被再现感知这种颜色转载在所述证明 观看设备gemäß到所述第二版本,因为这颜色是由具有不同于所述第一观察者的不同人的视觉特性的第二人类观察者感知到的最终色彩再现设备上。

    Algebraic method for defining a color gamut mapping function
    10.
    发明公开
    Algebraic method for defining a color gamut mapping function 审中-公开
    Algebraisches Verfahren zur Bestimmung einer Farbtonbereichsumsetzungsfunktion

    公开(公告)号:EP2091226A1

    公开(公告)日:2009-08-19

    申请号:EP08300092.7

    申请日:2008-02-13

    申请人: Thomson Licensing

    IPC分类号: H04N1/60

    CPC分类号: H04N1/6058

    摘要: This method comprises
    - the definition of a global perception error function, such that, for each source color of a set to map, a value is given for this global error function;
    - the definition of an energy function U(F) as a sum of the values of said global perception error function for all source colors of said set that is weighted for each source color of said set by its probability within said set,
    - definition of said gamut mapping method by an algebraic function that minimizes this energy function.
    Such a definition may be easily connected to actual Human Visual System-based criteria.

    摘要翻译: 该方法包括 - 定义全局感知误差函数,使得对于要映射的集合的每个源颜色,给出该全局误差函数的值; - 能量函数U(F)的定义,作为所述集合的所有源颜色的所有全部感知误差函数的值的总和,所述集合的所有源颜色通过其在所述集合中的概率被加权,所述集合的每个源颜色被定义为 通过使能量函数最小化的代数函数的所述色域映射方法。 这样的定义可能容易地与实际的基于人类视觉系统的标准相关联。