小波变换在图像压缩中的应用和研究现状

The Application of Wavelet Transform to the Image Compression and the Present Condition of Study

小波变换是在短时傅立叶变换的基础上发展起来的一种具有多分辨率分析特点的时-频分析方法。由于小波变换在时域和频域同时具有良好的局部特性,自产生以来取得了巨大的发展并得到了广泛的应用。本文论述了小波变换的研究现状与应用进展,主要介绍了小波变换在图像压缩方面应用的原理和主要压缩方法。

The Wavelet Transform is a time-frequency analysis method,which developed on the basis of shoryt-term Fourier transform and has the characteristic of multi-resolution analysis. Because the wavelet transform has the good partial characteristic in the time domain and the frequency range, have since been made tremendous development and has been widely used. This Paper discussed the research present and application progress of the wavelet transform ; mainly introduced the wavelet transform applies in the image compression of principle with compression methed.