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Low-bit depth-high-dynamic range image generation by blending differently exposed images

机译:通过混合不同曝光的图像生成低位深度-高动态范围图像

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Recently, high-dynamic range (HDR) imaging has taken the centre stage because of the drawbacks of low-dynamic range imaging, namely detail losses in under- and over-exposed areas. In this study, the authors propose an algorithm for HDR image generation of a low-bit depth from two differently exposed images. For compatibility with conventional devices, HDR image generations of a large bit depth and bit depth compression are skipped. By using posterior probability-based labelling, luminance adjusting and adaptive blending, the authors directly blend two input images into one while preserving the global intensity order as well as enhancing its dynamic range. From the experiments on various test images, results confirm that the proposed method generates more natural HDR images than other state-of-the-art algorithms regardless of image properties.
机译:近来,由于低动态范围成像的缺点,即曝光不足和曝光过度区域的细节损失,高动态范围(HDR)成像已成为焦点。在这项研究中,作者提出了一种从两个不同曝光的图像生成低位深度的HDR图像的算法。为了与常规设备兼容,跳过了大位深度和位深度压缩的HDR图像生成。通过使用基于后验概率的标记,亮度调整和自适应混合,作者可以将两个输入图像直接混合为一个,同时保留全局强度顺序并增强其动态范围。从对各种测试图像进​​行的实验中,结果证实,与其他现有技术算法相比,不管图像属性如何,所提出的方法都能生成更多自然的HDR图像。

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    《Image Processing, IET》 |2013年第6期|606-615|共10页
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