摘要
照度不均匀图片分辨率较差,许多信息被掩盖,为了较好地去除光照影响,真实再现原场景,本文提出了一种改进的Gamma非线性灰度矫正函数,实现了对不同像素进行不同程度的灰度修正,另外,本文分析了所提出函数的参数对校正结果的影响,根据像素的分布自动地确定函数参数值,实现了照度不均匀图像的自动灰度修正。实验证明该方法与其他方法相比具有较好的校正效果。
The resolution ratio is relatively poor and a lot of information is covered for the uneven illumination of the photograph, in order to better removal of light effects and reproduce truly plain circumstances, this paper present an improved Gamma non-linear functions of gray-level correction and have realized the amendment carrying out gradation to varying degrees on different pixel. In addition, the main body of this paper analyses the impacts of the function parameters over adjustment result, according to the distribution of pixels to determine function parameters automatically, the gray-level of the uneven illumination image is amended automatically. Experiment proved that the method compared with other methods that have better correctional results.
出处
《微计算机信息》
2009年第18期292-293,274,共3页
Control & Automation
