一种易于硬件实现的JPEG-LS无损图像压缩算法

A Novel Algorithm for JPEG-LS Lossless Image Compression algorithm for Hardware Implementation

本文针对JPEG-LS无损图像压缩算法展开研究,算法采用C语言实现,并进一步优化,使其适合于硬件实现。分析其中的关键技术,常规模式编码、预测误差编码和游长模式编码,并将这些算法以公式和表格的形式详尽表示,降低了算法的复杂度,便于硬件描述语言编程实现。最后针对不同的图像进行了测试,得出了不同的压缩比,仿真结果表明图像的平滑度对图像的压缩比有较大的影响。

This paper studies the JPEG-LS lossless image compression algorithm, this algorithm using C language to achieve, And further optimization, easy to implement with hardware.The key technologies about the algorithm were analyzed, such as conventional mode coding, prediction error coding and run-length encoding mode. These algorithms are detailed expressed In the form of formulas and tables., reduces the complexity of the algorithm, easy to implement with hardware language. Finally, tested for different images come to different compression rates, the image simulation results show the smoothness of compressed image has a greater impact to the rates.