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基于局部适应性的高动态范围图像显示方法 被引量:7

Method for displaying high dynamic range images based on local adaptive
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摘要 在高动态范围环境中,人眼依靠局部适应性也能够观察到细节变化。提出了一个基于区域信息的局部适应亮度计算方法来模拟局部适应性。使用区域生长法对图像进行分割,然后采用基于区域的双边滤波技术来计算每一像素的局部适应亮度,再联合色调映射算子获得可显示的低动态范围图像。实验结果显示,输出的图像避免了光晕,同时较好地保持了细节。 The visual system is able to perceive details in an environment with a high dynamic range by means of local adaptation. A region-based method for calculating local adaptation luminance was proposed to imitate the local adaptation mechanism. It segmented image with region growing, Then local adaptation luminance was computed via region-based bilateral filter. It outputted low dynamic range images in conjunction with tone mapping operator. The resulting images preserve details without halo artifacts.
出处 《计算机应用》 CSCD 北大核心 2007年第4期989-990,1029,共3页 journal of Computer Applications
关键词 区域生长 双边滤波 色阶重建 高动态范围图像 辐射度图 region growing bilateral filter tone reproduction High Dynamic Range (HDR) image radiance map
作者简介 王家亮(1977-),男,江西吉水人,硕士研究生,主要研究方向:图形图像处理.jerrynet_wang@yahoo.com.cn 顾耀林(1948-),男,江苏无锡人,教授,主要研究方向:计算机图形图像处理,并行计算.
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