标签: lzw

基于FPGA的LZW压缩算法实现方案.

FPGA是一个技术密集型的行业，没有坚实的技术功底，很难形成有竞争力的产品。从技术上来看FPGA未来的发展，至少在几年内还是遵循摩尔定律的规则，工艺不断升级，目前xilinx16nm工艺的FPGA已经成熟商用，xilinx下一代产品会升级到7nm，重点应该还是瞄准通信和可能出现的新兴行业如大数据处理等。有这方面需求的网友不妨来共同学习探讨。

Datatransmissionandstoragecostmoney.Themoreinformationbeingdealtwith,themoreitcosts.Inspiteofthis,mostdigitaldataarenotstoredinthemostcompactform.Rather,theyarestoredinwhateverwaymakesthemeasiesttouse,suchas:ASCIItextfromwordprocessors,binarycodethatcanbeexecutedonacomputer,individualsamplesfromadataacquisitionsystem,etc.Typically,theseeasy-to-useencodingmethodsrequiredatafilesabouttwiceaslargeasactuallyneededtorepresenttheinformation.Datacompressionisthegeneraltermforthevariousalgorithmsandprogramsdevelopedtoaddressthisproblem.Acompressionprogramisusedtoconvertdatafromaneasy-to-useformattooneoptimizedforcompactness.Likewise,anuncompressionprogramreturnstheinformationtoitsoriginalform.Weexaminefivetechniquesfordatacompressioninthischapter.Thefirstthreearesimpleencodingtechniques,called:runlength,Huffman,anddeltaencoding.Thelasttwoareelaborateproceduresthathaveestablishedthemselvesasindustrystandards:LZWandJPEG.CHAPTERDataCompression27Datatransmissionandstoragecostmoney.Themoreinformationbeingdealtwith,themoreitcosts.Inspiteofthis,mostdigitaldataarenotstoredinthemostcompactform.Rather,theyarestoredinwhateverwaymakesthemeasiesttouse,suchas:ASCIItextfromwordprocessors,binarycodethatcanbeexecutedonacomputer,individualsamplesfromadataacquisitionsystem,etc.Typically,theseeasy-to-useencodingmethodsrequiredatafilesabouttwiceaslargeasactuallyneededtorepresenttheinformation.Datacompressionisthegeneraltermforthevariousalgorithmsandprogramsdevelopedtoaddressthisproblem.Acompressionprogramisusedtoconvertdatafromaneasy-to-useformattooneoptimized……