一种基于小波分量相似性的图像放大方法  

An Image Zooming Method Based on Similarity of Wavelet Component

作　　者：邢国波[1] 张绍兰[1] 

机构地区：[1]山东建筑大学计算机科学与技术学院,济南250101

出　　处：《计算机与数字工程》2007年第4期126-128,共3页Computer & Digital Engineering

摘　　要：图像放大技术在许多方面有着重要的应用,本文提出一种基于小波回归的图像放大技术。该方法主要分为三步:首先将待放大图像进行小波分解,其次对分解后各个频带的分量采用不同的放大方法,(即低频分量用原始图像代替,其它三个高频分量用不同分辨率图像的分量相似性方法得到),最后利用小波逆变换得到放大结果。实验结果表明该方法是行之有效的。Image enlargement has been widely used in many applications.In this paper,a novel image enlarged technique based on wavelet decomposition and similarity technique is presented.The method is mainly divided into three steps:(1) use wavelet to decompose the original image into 4 components:(2) different enlarged methods are used for different components(the low component is replaced by the original image,the left three high components are obtained by the similarity of wavelet components with different resolutions) and(3):the final enlarged result is obtained by inverse wavelet transform.Experimental results and discussions show the proposed method is effect.

关 键 词：图像放大 小波分解 相似性 

分 类 号：TN911.73[电子电信—通信与信息系统]