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基于颜色视觉过程的高动态范围图像映射方法

Keywords: 高动态范围图像,低动态范围,显示设备,颜色视觉

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Abstract:

为解决低动态范围显示设备显示高动态范围图像所产生的问题,提出一种基于颜色视觉过程的高动态范围图像映射方法.此方法通过模拟人眼颜色视觉处理信息的过程压缩图像的动态范围,解决动态范围压缩导致细节丢失等问题.模拟光感应细胞的响应机制,在各适应性亮度下,进行色度适应性调整,并获得其适应性亮度下的相对响应值;利用主成分分析(PCA)方法转换到正交对立颜色空间,模拟颜色视觉中的边缘相阻机制,进一步处理后得到适合低动态范围显示设备的图像.在实验中,通过主观和客观评价,并与国际上一些映射方法比较发现,该方法适用于各

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