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1. 发明公开

EP3054416A1 Method, system and device for generating more natural images 有权转让
标题翻译： 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）;

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