基于EZW的地震图像小波压缩算法与实现

摘要

The paper introduced the seismic image knowledge and SEG-Y file format,and wavelet transform theory,fi-nally did the EZW algorithm analysis and research,and realized image compression to the earthquake based on the algo-rithm.By using the embedded wavelet coding method higher compression ratio and strong resistance to error can be ob-tained,seismic data visualization mapping refers to the seismic data can be observed visual entities,the seismic data in mem-ory is two-dimensional,mapping and the image according to the visualization can compress the image again.Reflects the im-portant role in the study of seismic image for the oil field exploration,and can make people more deep understanding of the image compression algorithm.%介绍了地震图像知识、SEG-Y 文件格式以及小波变换基础理论，对 EZW算法进行了分析和研究，并基于该算法实现了对地震图像的压缩。采用嵌入式小波编码方法能取得较高的压缩比以及较强的抗误码性，地震数据可视化是指将地震数据映射成可观测到的视觉实体，将地震数据在内存中二维化，并映射成图像，这时就可以对图像再次进行压缩。本文体现了地震图像对于油田勘探研究的重要作用，使人们更为深入地了解了图像压缩算法。