Second-generation Wavelet Transform Applied To Image Lossless Compression Dsps To Achieve

Abstract: This paper discusses implementation of lifting scheme for wavelet transform used in lossless compression of image on the platform of TMS320C6201 DSPs.The second generation wavelet transforms based on lifting scheme can construct lossless integer to integer wavelet transforms.the lifting scheme has a lot of algoritmic advantages:efficiency,parallelism,in-place calculation.so it can be well implemented on DSPs.This paper also discusses improving implementation of wavelet transform.Taking advantage of the fixed-point calculation performance of TMS320C6201, the implementation can calculate integer wavelet transforms using fixed-point calculation. Furthermore.symmetric extension is used to simplify boundary treatment.so the implementation on TMS320C6201 DSPs become more easy.The program is optimized to improve execution speed and can be used in real system.At last.analyzing performance of this system and experiment results.this paper describes a scheme of image compression card,this scheme will be developed in the next step.