Image Lossless Compression Using Improved Espiht Technique
نویسنده
چکیده
Lossless compression is a new technique for reduction of data quantity without reducing the quality of an image. The storage and transfer of compressed data is faster as compared to uncompressed data. To achieve high compression ratio and compression time, we use modified Embedded Zero Tree Wavelet (EZW), improved Enhanced Set-Partitioning In Hierarchical trees (ESPIHT) techniques. These techniques are best suited for large sized multimedia data. Peak signal to noise ratio are improved up to 44.17 db. The Mean square error is reduced up to 0.503007.
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تاریخ انتشار 2017