结合饱和度调节的单曝光HDR图像生成方法

针对目前利用单幅低动态范围图像生成高动态范围图像过程中亮度的动态范围扩展与饱和度不匹配,从而导致扩展后图像泛白的问题,提出一种结合饱和度调节的由单幅图像生成高动态范围图像的方法.该方法将图像转换到H SV颜色空间,首先对亮度分量进行反色调映射及高光区域校正得到新的亮度分量,并对饱和度分量进行线性拉伸;然后计算原始亮度与...

Single Exposure HDR Image Generation Method Combined with Saturation Adjustment

Aiming at the problem that dynamic range expansion of brightness did not match saturation in the process of using a single low dynamic range image to generate high dynamic range (HDR) images, which resulted in image whitening after expansion. We proposed a method of generating HDR image from a single image combined with saturation adjustment. This method converted the image into HSV color space. Firstly, the new brightness component was obtained by inverse tone mapping and high-light region correction, and the saturation component was linearly stretched. Secondly, the correlation coefficient between original brightness and saturation was calculated, and then the new saturation component was obtained by fine-tuning the saturation component after stretching through correlation coefficient and new brightness component. Finally, the processed components were fused to get the high dynamic range image. The experimental results show that the method can produce high dynamic range images with bright colors, which is more in line with the visual characteristics of human eyes.