用java实现二维dct变换及其idct逆变换，-The realization of two-dimensional transform and its inverse transform dct

用JAVA实现的离散余弦变换，离散余弦变换是各种压缩算法用到的-JAVA Implementation of Discrete Cosine Transform, Discrete Cosine Transform is used in a variety of compression algorithms

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

求取一段由加速度传感器获取的加速度序列信号的离散余弦变换-For the discrete cosine transform for a period of acquisition by the acceleration sensor of acceleration signal