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基于加权抛物线插值与小波变换的图像放大算法

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Indexed by:期刊论文

Date of Publication:2008-01-01

Journal:计算机工程与应用

Included Journals:PKU、ISTIC、CSCD

Volume:44

Issue:1

Page Number:48-50

ISSN No.:1002-8331

Key Words:图像放大;小波变换;加权抛物线插值

Abstract:图像放大问题的焦点是如何在图像放大过程中保持良好的视觉分辨率和清晰度.论文首先对加权抛物线插值算法进行了改进,在此基础上提出一种加权抛物线插值结合小波变换的图像放大算法,并对小波变换后的小波系数低频带作了幅值增强处理.实验结果表明,相对于传统的图像放大算法,该算法不仅较好地保留了原始图像的细节信息,而且还提高了放大后图像的亮度和清晰度.

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