【摘要】 图像压缩是数据压缩技术在数字图像上的应用,其目的是减少图像数据中的冗余信息,从而用更加高效的格式存储和传输数据。图像压缩可以是有损数据压缩也可以是无损数据压缩。这里所研究的是有损压缩技术,对于此类技术,变换编码是最常用的方法,如离散余弦变换(DCT)或者小波变换这样的傅里叶相关变换,然后进行量化和用熵编码法压缩。更多还原

【Abstract】 Image compression is the application of data compression technology in digital image,whose purpose is to reduce the redundant information in image data,so as to store and transmit the data more efficient.Image compression can either be lossy data compression or non-destructive data compression.The lossy compression technology,in which the transform coding methods are the most commonly used methods.Fourier related transform methods such as discrete cosine transform(DCT) and Wavelet transform,which was quantified and compressed by the method of entropy coding.更多还原