摘要
提出提升小波变换,在此基础上,对由MPEG—4标准编码产生的根据提升小波变换的双向相邻图像质量剧烈波动的缺陷进行调整。利用三次样条函数进行样条逼近算法,对调整后的图像进行压缩。通过对图像进行分析与仿真,使图像质量和压缩比提高,与此同时优化了边缘效应。
wavelet algorithm is proposed on the basis of wavelet transform,on the basis of this,the standard MPEG-4 code generated based on lifting wavelet transform image quality fluctuation of bilateral adjacent defects are adjusted.After the three orders spline function approximation derived algorithm,the adjusted image compression.By the method of analysis and simulation,so that the image quality and compression ratio is increased,at the same time optimization edge effect.
出处
《科学技术与工程》
北大核心
2013年第17期4866-4872,共7页
Science Technology and Engineering
关键词
小波算法
条形编码
边缘优化
wavelet algorithm bar code edge optimization
