PNG图像解码中高速Huffman解码器的设计

PNG Graphics Hardware Decoding of High-Speed Huffman Decoder Design

改变以往PNG图像中Huffman解码器的软件实现方式,将PNG图像中Huffman解码器用硬件实现,加速PNG图像解码.研究了Huffman解码器在专用集成电路中的实现问题,以PNG图像中的Huffman解码为研究对象,在研究码表的特点和压缩数据的基础上设计出高速的Huffman解码电路.实现的Huffman硬件解码器经EDA工具测试和MATLAB验证,可以完全无失真地解码PNG图像.

Change original PNG software decoding, update decode algorithm, implement hardware huffman decoder, speed up PNG decode proecess. This paper discuss the implementation of Huffman decoder in ASIC based on the feature of table and compressed data. The result under the test of EDA tools and matlab shows the Huffrnan decoder for PNG decode without distortion.