摘要
针对图像数据量随分辨率增大而增大的问题,为了有效地对遥感数据进行传输和存储,本文提出了一种利用小波变换实现图像数据压缩的方法,研究了阈值对图像压缩比和能量保持比的影响.实验结果证明了小波变换是一种压缩比高,能量保持比大,压缩速度快的一种图像压缩方法.
Point to problem that the image data's increase with the increase of resolving power, in order to store and transmit the remote image data efficiently, a kind of image compression method is presented in this paper, and the effection of the threshold to the image compression ratio and energy-keeping was studied at the same time. The experiment result proved that the wavelet transform is a kind of high compression and energy-keeping ratio, fast compression speed data compression method.
出处
《吉林师范大学学报（自然科学版）》
2005年第2期17-18,29,共3页
Journal of Jilin Normal University:Natural Science Edition
关键词
小波
变换域
阈值
压缩比
wavelet
transform field
threshold
compression ratio
