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    IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD
    2.
    发明公开
    IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD 审中-公开
    图像处理装置和图像处理方法

    公开(公告)号：EP3192256A1

    公开(公告)日：2017-07-19

    申请号：EP15748319.9

    申请日：2015-07-21

    申请人： Sony Corporation

    发明人： TSURU, Takumi ,  ETO, Hiroaki ,  HAMADA, Toshiya ,  KANAI, Kenichi ,  SHIRAISHI, Tomizo

    IPC分类号： H04N9/69

    CPC分类号： G06T5/009 ,  G06T2200/28 ,  G06T2207/20008 ,  G06T2207/20208 ,  H04N9/69

    摘要： An image processing apparatus and an image processing method which can transmit/receive or display a high-dynamic-range image suitably are provided. An image transmission apparatus transfers, as metadata of content, luminance conversion information, which is for conversion of HDR content (for example, with maximum luminance 2000 nit) into SDR content (having, for example, 100 nit), or differential information. Based on the metadata, an image reception apparatus generates luminance conversion information, in which received HDR content is adapted to a capability of a display (for example, with maximum luminance 500 nit or 1000 nit) in an output destination, and realizes display mapping which is not against an intention of a producer.

    摘要翻译： 提供可以适当地发送/接收或显示高动态范围图像的图像处理设备和图像处理方法。 图像传输装置将用于将HDR内容（例如，以最大亮度2000nit）转换成SDR内容（具有例如100nit）的亮度转换信息或差分信息作为内容的元数据传送。 基于元数据，图像接收设备生成亮度转换信息，其中接收到的HDR内容适应于输出目的地中的显示能力（例如，具有最大亮度500nit或1000nit），并且实现显示映射 并不违反制片人的意图。

    Method, system and device for generating more natural images
    5.
    发明公开
    Method, system and device for generating more natural images 审中-公开
    Verfahren，System und Vorrichtung zur ErzeugungnatürlichererBilder

    公开(公告)号：EP3054416A1

    公开(公告)日：2016-08-10

    申请号：EP15154172.9

    申请日：2015-02-06

    申请人： Universitat Pompeu-Fabra

    发明人： Bertalmio Barate, Marcelo José ,  Kane, David ,  Cyriac, Praveen

    IPC分类号： G06T5/00 ,  G06T5/40 ,  H04N1/407

    CPC分类号： G06T5/009 ,  G06T5/40 ,  G06T2207/10016 ,  G06T2207/10024 ,  G06T2207/20008 ,  G06T2207/20076 ,  H04N5/202 ,  H04N9/69

    摘要： A method, system and device for generating a more natural image where the method is characterized by comprising the following steps performed in an apparatus for processing an image: receiving a normalized image; computing luminance channel, computing histogram of said luminance, computing a cumulative histogram of said histogram, estimating a first parameter (Mid_X) related to the average of said cumulative histogram, a second slope parameter (Gamma_L) for small values of said cumulative histogram and a third slope parameter (Gamma_H) for large values of said cumulative histogram and estimating a gamma correction function (Gamma) from said cumulative histogram wherein said gamma correction function is a function of (Mid_X), (Gamma_L) and (Gamma_H); and finally applying said gamma correction function (Gamma) to every image channel (R, G or B) and obtaining a output image (I out ) and computing a contrast normalization process to said output image (I out ) and obtaining and final image (I final );

    摘要翻译： 一种用于生成更自然的图像的方法，系统和装置，其中所述方法的特征在于包括在用于处理图像的装置中执行的以下步骤：接收归一化图像; 计算亮度通道，计算所述亮度的直方图，计算所述直方图的累积直方图，估计与所述累积直方图的平均值相关的第一参数（Mid_X），用于所述累积直方图的小值的第二斜率参数（Gamma_L） 对所述累积直方图的大值进行第三斜率参数（Gamma_H），并且从所述累积直方图估计伽马校正函数（Gamma），其中所述伽马校正函数是（Mid_X），（Gamma_L）和（Gamma_H）的函数; 并且最终将所述伽马校正函数（Gamma）应用于每个图像通道（R，G或B）并获得输出图像（I out），并计算对所述输出图像（I out）的对比度归一化处理以及获得和最终图像 我最后）;

    GLOBAL DISPLAY MANAGEMENT BASED LIGHT MODULATION
    6.
    发明公开
    GLOBAL DISPLAY MANAGEMENT BASED LIGHT MODULATION 审中-公开
    AUF GLOBALEM ANZEIGEMANAGEMENT BASIERENDE LICHTMODULATION

    公开(公告)号：EP2949120A1

    公开(公告)日：2015-12-02

    申请号：EP14743128.2

    申请日：2014-01-22

    申请人： Dolby Laboratories Licensing Corporation

    发明人： KUNKEL, Timo

    IPC分类号： H04N9/64 ,  G06T5/00

    CPC分类号： H04N5/2355 ,  G06T5/009 ,  G06T5/50 ,  G06T15/30 ,  G06T15/506 ,  G06T2207/10016 ,  G06T2207/10024 ,  G06T2207/10152 ,  G06T2207/20008 ,  G06T2207/20208 ,  G06T2210/61 ,  G09G2320/0271 ,  G09G2320/0646 ,  H04N5/2352 ,  H04N5/57 ,  H04N9/64 ,  H04N21/4318

    摘要： A plurality of input images in an input video signal of a wide dynamic range is received. A specific setting of global light modulation is determined based on a specific input image in the plurality of input images. The specific setting of global light modulation produces a specific dynamic range window. A plurality of input code values in the specific input image is converted to a plurality of output code values in a specific output image corresponding to the specific input image. The plurality of output code values produces the same or substantially the same luminance levels as represented by the plurality of input code values. Any other pixels in the specific input image are converted to different luminance levels in the specific output image through display management.

    摘要翻译： 接收宽动态范围的输入视频信号中的多个输入图像。 基于多个输入图像中的特定输入图像来确定全局光调制的具体设置。 全局光调制的具体设置产生一个特定的动态范围窗口。 特定输入图像中的多个输入代码值被转换成与特定输入图像相对应的特定输出图像中的多个输出代码值。 多个输出代码值产生与多个输入代码值所表示的相同或基本上相同的亮度级。 特定输入图像中的任何其他像素通过显示管理转换为特定输出图像中的不同亮度级别。

    IMAGE PROCESSING METHOD WITH DETAIL-ENHANCING FILTER WITH ADAPTIVE FILTER CORE
    8.
    发明公开
    IMAGE PROCESSING METHOD WITH DETAIL-ENHANCING FILTER WITH ADAPTIVE FILTER CORE 审中-公开
    对细节增强滤波器和自适应滤波器核心图像处理

    公开(公告)号：EP2817956A1

    公开(公告)日：2014-12-31

    申请号：EP13752299.1

    申请日：2013-02-11

    申请人： Flir Systems AB

    发明人： OLSSON, Stefan

    IPC分类号： H04N1/409 ,  G06T5/50 ,  H04N5/21

    CPC分类号： G06T5/20 ,  G06T5/002 ,  G06T5/003 ,  G06T5/004 ,  G06T2207/10048 ,  G06T2207/20008 ,  G06T2207/20024 ,  G06T2207/20192 ,  H04N5/21

    摘要： The invention relates to an image processing method for filtering with an adaptive filter core size, characterized in that the following steps are included: (a) an original image is created, (b) an information measure is calculated on the basis of the original image, (c) a filter core size is calculated on the basis of the information measure, (d) the original image is low-pass filtered with an adaptive low-pass filter with filter core size to form a low-pass filtered image, (e) a high-pass filtered image is calculated by subtracting the low-pass filtered image from the original image, (f) a detail -enhanced image without light rings is obtained by a high-pass image scaled with a detail enhancement measure being added to the low-pass image. The invention additionally relates to an image processing device comprising an image recording device 11), an image processing unit (12), and an image display unit (13), in which: (a) the recording device (11) creates an original image, (b) an image processing unit (12) calculates an information measure on the basis of the original image, (c) an image processing unit (12) calculates a filter core size on the basis of the information measure, (d) the image processing unit (12) low-pass filters the original image with an adaptive low-pass filter with filter core size to form a low-pass filtered image, (e) the image processing unit (12) calculates a high-pass filtered image by subtracting the low-pass filtered image from the original image, (f) the image processing unit (12) calculates a detail -enhanced image without light rings by adding a high-pass image scaled with a detail enhancement measure to the low-pass image, (g) the image display unit (13) visualizes the detail- enhanced image without light rings.

    Noise detection and estimation techniques for picture enhancement
    10.
    发明公开
    Noise detection and estimation techniques for picture enhancement 有权
    用于图像增强的噪声检测和估计技术

    公开(公告)号：EP2375374A2

    公开(公告)日：2011-10-12

    申请号：EP11005330.3

    申请日：2008-03-25

    申请人： Intel Corporation

    发明人： Chiu, Yi-Jen

    IPC分类号： G06T5/00 ,  H04N5/21 ,  H04N17/00

    CPC分类号： H04N17/00 ,  G06T5/002 ,  G06T5/20 ,  G06T7/13 ,  G06T2207/10016 ,  G06T2207/20008 ,  G06T2207/20032 ,  H04N5/142 ,  H04N5/21

    摘要： A method of filtering noise from a picture may include determining a set of pixel noise metrics for a set of selected pixels in the picture based solely on information from the set of selected pixels in the picture. The method may also designate as valid a subset of pixel noise metrics in the set of pixel noise metrics whose associated pixels are not located at an edge or are not located in a complicated area of the picture. A set of block noise metrics may be calculated from the valid subset of pixel noise metrics, and a global noise metric for the picture may be ascertained from the set of block noise metrics. The picture may be filtered using the global noise metric to generate a filtered picture.

    摘要翻译： 从图片中滤除噪声的方法可包括仅基于来自图片中所选像素集合的信息来确定图片中的一组选定像素的一组像素噪声度量。 该方法还可以指定像素噪声度量集合中的像素噪声度量集合的有效性，其相关像素不位于边缘或不位于图像的复杂区域中。 可以从像素噪声度量的有效子集计算一组块噪声度量，并且可以从该组噪声度量中确定图片的全局噪声度量。 可以使用全局噪声度量对图片进行滤波以生成滤波后的图片。