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arXiv 2007.10802eess.IV
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考虑相机非线性响应的多曝光图像融合色调校正方法

Hue-Correction Scheme Considering Non-Linear Camera Response for Multi-Exposure Image Fusion

Kouki Seo, Chihiro Go, Yuma Kinoshita, Hitoshi Kiya

摘要:

提出了一种新的多曝光图像融合(MEF)的色调校正方案。到目前为止,已经研究了各种MEF方法来生成更高质量的图像。然而,由于缺乏具有正确色调的参考图像,与图像处理的其他领域不同,很少有考虑色调失真的MEF方法。在所提出的方案中,我们生成一个HDR图像作为参考色调校正,从输入的多曝光图像。然后,在RGB颜色空间中的恒定色调平面的基础上,通过使用HDR图像的色调信息来去除由MEF方法融合的图像中的色调失真。仿真结果表明,该方法能够有效地校正传统MEF方法所引起的色调失真。实验结果也表明,该方案可以生成高质量的图像,而不管输入的多曝光图像的曝光条件。

英文摘要:

We propose a novel hue-correction scheme for multi-exposure image fusion (MEF). Various MEF methods have so far been studied to generate higher-quality images. However, there are few MEF methods considering hue distortion unlike other fields of image processing, due to a lack of a reference image that has correct hue. In the proposed scheme, we generate an HDR image as a reference for hue correction, from input multi-exposure images. After that, hue distortion in images fused by an MEF method is removed by using hue information of the HDR one, on the basis of the constant-hue plane in the RGB color space. In simulations, the proposed scheme is demonstrated to be effective to correct hue-distortion caused by conventional MEF methods. Experimental results also show that the proposed scheme can generate high-quality images, regardless of exposure conditions of input multi-exposure images.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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