An Enhanced Image Compression Codec using Spline-based Directional LiftingWavelet Transform and an Improved SPIHT Algorithm

被引：0

作者：

Boujelbene, Rania ^{[1
]}

Ben Jemaa, Yousra ^{[1
]}

机构：

[1] Univ Tunis El Manar, L3S Lab, ENIT, Tunis, Tunisia

来源：

PROCEEDINGS OF THE 16TH INTERNATIONAL CONFERENCE ON SOFTWARE TECHNOLOGIES (ICSOFT) | 2021年

关键词：

Image Compression; Spline-wavelet Transform; Directional Lifting; Improved SPIHT;

D O I：

10.5220/0010549306310638

中图分类号：

TP31 [计算机软件];

学科分类号：

081202 ; 0835 ;

摘要：

A novel lossy image-compression scheme is proposed in this paper. A two-step structure is embedded in this codec. A spline-based directional lifting wavelet transform is used to decorrelate the image data in the first step. Then in the second step, an improved Set Partitioning in Hierarchical Trees (SPIHT) algorithm based on binary tree is developed to code the wavelet coefficients. The numerical results demonstrated the efficiency of the proposed approach to achieve significant gains in terms of PSNR, BD-PSNR and SSIM for all test images. It offers better results compared to the existing ones.

引用

页码：631 / 638

页数：8

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