小型固定字典与分形图像压缩编码

Small Fixed Dictionary and Fractal Image Compression Coding

首先将“Julia曲线”按多种方式进行量化,接着将量化的“Julia曲线”用于分形图像压缩编码,改变了分形图像压缩编码以变化的压缩编码字典进行编码的缺点.此外,还建立一个小型固定字典,用以加速分形图像的压缩编码.实验结果表明,“Julia曲线”能很好地对图像进行压缩编码,并具有分形图像的解码优点.

Firstly,“Julia curves” is measured by many ways, then “Julia curves”of measurement is applied to coding fractal image and the defect that fractal image compression coding depends on changeable code compression dictionary is eliminated. In addition, a small fixed dictionary that is applied to speeding up fractal image compression coding is built. The experimental results show that the “Julia curves”can collage fractal image to be encoded very well and has some fractal image merit decoding.