摘要
在大气散射环境下图像成像受到光照和暗原色因素影响,成像的去雾效果不好,为了提高暗原色图像去雾能力,提出一种基于局部均值降噪和多尺度亮度分解的大气散射环境下暗原色图像去雾算法。构建大气散射模型,采用分块区域分割技术进行大气散射环境下暗原色图像的边缘信息构造和分块区域匹配,结合多尺度亮度分量补偿方法进行图像的大气散射补偿和透射率控制,采用小波多尺度分解方法进行大气散射暗原色图像动态特征提取,采用局部均值降噪方法进行雾化图像降噪,获取图像的边缘信息进行暗原色透射补偿,消除雾化块区域的暗通道干扰信息,采用多尺度亮度分解方法恢复出无雾图像的细节信息和色彩,实现图像去雾优化。仿真结果表明,采用该方法进行图像去雾的质量较好,算法复杂度较低,图像输出的信噪比较高。
In the atmosphere scattering environment, imaging is affected by light and dark primary color factors, and the effect of fog removal bad. In order to improve the ability of dark primary color image to remove fog, a new defogging algorithm for dark primary color images in atmospheric scattering environment based on local mean noise reduction and multi-scale luminance decomposition is proposed. The atmospheric scattering model is constructed, and the edge information of dark primary color image is constructed and the block region matching is carried out by using block region segmentation technique in atmospheric scattering environment. The atmospheric scattering compensation and transmittance control of the image are carried out by combining the multi-scale luminance component compensation method. The wavelet multi-scale decomposition method is used to extract the dynamic features of the atmospheric scattering dark primary color image. The local mean denoising method is used to reduce the noise of atomized image, and the edge information of the image is obtained to compensate for the dark primary color transmission, and the dark channel interference information in the atomized block area is eliminated. The multi-scale brightness decomposition method is used to restore the detailed information and color of the fog-free image, and to realize the optimization of the image de-fogging. The simulation results show that the proposed method has good quality, low complexity and high SNR of image output.
作者
王映丽
Wang Yingli(Guangzhou Huali Science and Technology Vocational College,Guangzhou 511325,China)
出处
《电子测量技术》
2019年第12期95-99,共5页
Electronic Measurement Technology
关键词
大气散射环境
暗原色
图像
去雾
atmospheric scattering environment
dark primary color
image
defogging
