首页> 外文会议>Advances in Multimedia Information Processing - PCM 2008 >Tone Adjustment of Underexposed Images Using Dynamic Range Remapping
【24h】

Tone Adjustment of Underexposed Images Using Dynamic Range Remapping

机译:使用动态范围重新映射调整曝光不足图像的色调

获取原文
获取原文并翻译 | 示例

摘要

We present a new method for automatically adjusting the tonal values of underexposed digital images. We make the most of the dynamic range of digital images, and adjust the tonal values through dynamic range remapping, with a specifically defined tone mapping operator. The operator comprises two concatenate terms. The first one is a global operator that adjusts the tonal values of underexposed image with a linear scale transformation as well as a nonuniform intensity reduction function. The second one is a local operator used for noise suppression and detail enhancement. With such operator, tone values of underexposed images are faithfully adjusted. Meanwhile, noises are suppressed without introducing noticeable artifacts into resulting images. Our method runs with high efficiency. Experimental results demonstrate its effectiveness.
机译:我们提出了一种自动调整曝光不足的数字图像的色调值的新方法。我们充分利用了数字图像的动态范围,并使用专门定义的色调映射运算符通过动态范围重新映射来调整色调值。运算符包含两个串联项。第一个是全局算子,它使用线性比例转换以及不均匀的强度降低功能来调整曝光不足图像的色调值。第二个是用于噪声抑制和细节增强的本地运算符。使用这种操作器,可以忠实地调整曝光不足图像的色调值。同时,抑制了噪声而没有在结果图像中引入明显的伪像。我们的方法运行效率很高。实验结果证明了其有效性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号