薄雾影响下的退化彩色图像处理方法

薄雾天气条件下,大气对成像光线的作用使摄取到的彩色图像产生退化,模糊不清,色彩暗淡.在分析这种退化彩色图像成因的基础之上,针对其特点,建立了一种去除此类退化彩色图像中的薄雾影响的图像处理方法,并将模拟大气散射作用的简化模型应用于反锐化掩蔽处理中.与单尺度Retinex算法SSR(singlescale retinex)相结合,在3个尺度上进行了去雾处理,进行颜色恢复和对比度提升.使用了高斯滤波器的无限脉冲响应IIR(infinite impulse response)实现的算法,提高了处理速度.实验结果证明,此方法具有改善薄雾影响的退化彩色图像质量的能力,且处理速度适合于现实的应用.

Processing method research of color image degraded by fog

Under the fog w eather , the color image taken by device is deg raded by atmospher ic effect on imaging ray. T he cause of the color imag e deg raded by fog w as analy zed first ly, according to w hose features, a processing method w as built up to w ipe of f the degraded ef fect on the image w ith the scattering effect 's simplified mo del. T he gauss unsharping masking algor ithm w as integ rated w ith SSR on thr ee scales, to restore the colo r and impro ve the contr ast . In this metho d, the alg orithm of g auss f ilter' s IIR play s an important role in accelerat ing the pro cessing . The ex perimental results pr ove that this method has st ro ng abil ity to improve the quality o f the degr aded color image, and it s processing ef ficiency is f it for the pr act ical application.