这是一个图像处理的实验报告-This is an image processing experimental report

一种基于分块 D C T的混沌半脆弱图像水印技术，半脆弱数字水印；混沌理论

DCT对距正DCT压缩，然后解码,主要用于图像的压缩和解压-DCT matrix DCT compression, and then decode，Mainly used for image compression and decompression

用JAVA语言实现的一个数字图像的傅立叶变换和离散余弦变换。用到了傅立叶变换的快速算法FFT和离散余弦变换DCT。 -JAVA programming language to achieve a digital image of the Fourier transform and discrete cosine transform. Use of the Fourier transform, fast algorithm FFT and discrete cosine transform D