摘要
根据灰度图像的特点,提出了一种基于三次样条插值函数的直方图规定化方法,并用其对连铸板坯表面图像进行对比度增强。该算法是在直方图规定化的理论基础上,采用三次样条插值函数来拟合原直方图,并以拟合后的函数为规定函数对原图进行直方图规定化变换。通过实验并与采用高斯函数进行规定化处理后的效果图进行对比分析,验证了该算法的有效性和实用性。
According to characteristics of gray image,histogram specification algorithm was introduced,which obtained enhancement of continuous casting slab image.An improved algorithm adopting 3-spline interpolation to fit the original histogram image,and using fitting function was provided to process histogram specification as per theory of histogram specification algorithm.A comparative experimental analysis was made between improved histogram specification algorithm and traditional histogram specification algorithm based on Gaussian probability density function（Gaussian PDF）to examines and certifies its affect and practicability of modified algorithm.
出处
《连铸》
2010年第4期35-38,46,共5页
Continuous Casting
关键词
连铸板坯
直方图规定化
三次样条插值函数
高斯概率密度函数
continuous casting slab
histogram specification
3-spline interpolation
Gaussian probability density function
