多摄像机图像拼接自动色彩均衡算法.pdfVIP

第 30卷第 12期 计算机应用 Vol. 30 No. 12 2010年 12月 Journal of ComputerApp lications Dec. 2010 : 1001- 9081( 2010) 12- 3236- 02 1 2 林景亮 , 陈岳林 ( 1. , 541004; 2. , 541004) ( jl_ lin@ 126. com) : 针对多摄像机视频图像, 分析了图像拼接技术中存在的问题, 讨论了目前图像 理中常用的图像色彩均 衡算法, 提出了一种基于图像像素均值统计的亮度和色彩均衡 理算法首先提取相邻两摄像机同步帧图像的重叠 区域并对重叠区图像进行通道分离( RGB), 把其中一幅作为参考图像, 另一幅作为目标图像, 分别统计两幅图像各颜 色通道像素均值差, 用差值强制修正整幅目标图像然后对修正后的图像和参考图像(整幅图像) 进行颜色空间转换 ( RGB到 H V) , 再次统计两幅图像亮度通道 (V 通道) 均值差, 用差值强制修正整幅目标图像亮度实验结果证明, 该算法能有效校正相邻摄像机图像的亮度和色差, 对后期的拼接融合 理起到了很好的改善效果 : 图像拼接; W allis变换; 均值统计; 颜色空间转换; 色彩均衡 : TP39 : A Autom atic color equalization algorithm of m u lti-cam era im age m osaic 1 2 LIN Jing-liang , CHEN Yue-lin ( 1. School of M echanical and ElectricalEng ineering, Guilin University of Electronic Technology, Guilin Guangxi 541004, China; 2. School of Inf ormation and Technology, Guilin University of ElectronicTechnology, Guilin Guangxi 541004, China) A bstract: Autom atic color equalization is a very mi portan t technology for mi age processing. The paper proposed a new color and b rightness equalization algorithm based on mi age pixel-mean statistical after the analysis of the problem s in mi ages m osaic, and current mi age color equalization algorithm s wh ich were comm only used in mi age m osaic w ere also d iscussed. F irstly, overlapsw ere extracted from two adjacent cam era smi ultaneous fram e mi ages, and channels ( RGB) w ere separated latterly. Then one cam era mi age w as used as a reference mi age, the other one as the target mi age, and the co