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基于RCT-DWT-SPIHT的彩色图像无损压缩算法研究

Lossless Compression Algorithm for Color Image Based on RCT-DWT-SPIHT
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摘要 研究了基于RCT-DWT-SPIHT的彩色图像无损压缩算法,结果表明这一算法可以更好地完成图像的无损压缩编码.对24幅彩色国际标准测试图像的仿真实验结果表明,算法比较JP2,RAR,ZIP,PNG,TGA,PCX,TIF算法平均而言无损压缩比分别提高了7%,30%,41%,44%,62%,63%,66%左右.变换可由加法和移位完成,便于硬件实现. The lossless compression algorithm for color images based on the RCT-DWT-SPIHT is researched.The results show that this method can be better accomplished lossless image compression coding.International standards of 24 color images of the simulation test results show that this algorithm is more than JP2,RAR,ZIP,PNG,TGA,PCX,TIF lossless compression algorithm is on average increased by 7%,30%,41%,44%,62%,63%,66%.This transformation can be additive and shift complete,easy hardware implementation.
出处 《北华大学学报(自然科学版)》 CAS 2009年第6期561-564,共4页 Journal of Beihua University(Natural Science)
基金 国家自然科学基金资助项目(60672156) 吉林省科技支撑计划重点资助项目(20080320)
关键词 SPIHT DWT RCT 无损压缩 SPIHT DWT RCT Lossless compression
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