局部累积直方图在彩色图像检索中的应用  

Application of Local Accumulation Histogram in Color Image Retrieval

作　　者：强振平[1] 刘辉[1] 

机构地区：[1]昆明理工大学信息工程与自动化学院,昆明650051

出　　处：《计算机与数字工程》2006年第6期123-125,157,共4页Computer & Digital Engineering

摘　　要：局部累积直方图通过对颜色空间进行相似色区间划分,在每个区间内应用累积直方图法对图像的颜色特征进行提取,使得根据颜色对图像的检索更加合理有效。本文通过在HSI空间对色调和饱和度进行合理划分,并对图像间色调、饱和度和亮度进行匹配、加权求和,给出了根据局部累积直方图计算图片间相似值的一种具体算法。实验证明,该算法实现简单,检索速度、查全率、准确率均高于一般累积直方图法。Local accumulation histogram divides color space into similar regions and uses accumulation histogram method in every region to acquire the color characteristic of the picture, thus making image retrieval which is based on color characteristic more rational and effective. Through experiment, we provide a concrete color image retrieval algorithm, which divides the hue and saturation in HSI color space, uses matching algorithm to two pictures and calculates similar amount. Tiffs algorithm＇ s realization is simple, and the speed of retrieval, recall and precision are higher than general accumulation histogram.

关 键 词：图像检索 局部累积直方图 HSI空间 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]