摘要
DCT变换是图像压缩的一项重要技术,如何准确、快速进行图像压缩一直是国内外研究的热点。主要介绍基于DCT变换的图像压缩编码算法,给出具体的实现方法和步骤,并用Matlab进行了算法仿真。实验结果表明,该算法实现简单,在很大压缩范围内,都能得到很好的重建图像质量,满足不同场合要求不同图像质量的实际需要。这里利用Matlab做仿真实验,方法简单、速度快且误差小,大大提高了图像压缩的效率和精度。
The DCT transform is an important technique in the field of image compression. How to compress the image accurately and fast has been a research focus both at home and abroad all the time. This paper mainly introduces the algorithm of the image compress coding based on DCT,and shows details of realization. Then the algorithm is simulated by Matlah. Simulation experiments show that the algorithm is simple to realize. The reconstructed images are of good quality satisfying the demands of different image quality on various occasions under the circumstances of very large compression range. The innovation spot of this paper is that the method doing experiments with Matlab is simple, rapid and with little error. It can improve the efficiency and precision of the image compression greatly.
出处
《现代电子技术》
2008年第16期157-159,共3页
Modern Electronics Technique
