DCT变换的VC实现，对研究DCT如何用C实现有很大的参考作用，或可直接调用...

用matlab编写找到向量维度的波峰波谷的值.-Prepared using matlab to find vector value of the dimension of the peaks and valleys.

新一代静止图像压缩编码标准JPEG2000概述* 丁贵广 郭宝龙 西安电子科技大学 机电工程学院 西安 710071 guiguangd@263.net 摘要随着多媒体技术应用的不断增加图像压缩技术不仅要求具有较高的压缩性能而且还要求有新的特征来满足一些特殊的要求为此国际标准化组织ISO指定了新一代静止图像压缩标准JPEG2000本文通过对JPEG2000中核心算法EBCOT的详细分析阐述了JPEG2000压缩标准新的特征以及与现有压缩标准相比显示出来的优越性能 关键词JPEG2000小波变换EBCOT彩色图像编码-new generation of static image compression coding standard JPEG2000 outlined* Ding Guang Guo Baolong Xi"an University of Electronic Science and Electrical and Mechanical Engineering College, Xi"an 710071 guiguangd@263.net Abstract multimedia technology with the increasing use of image compression technology not only requires a high compression performance, but also requires new features to meet the special requirements for this ISO designation of a new generation of still image compression standard JPEG2000 Based on the core JPEG2000 algorithm EBCOT the detailed analysis described JPEG2000 compression standard and the new features with the existing compression standard compared to demonstrate the superiority can Keywords

ICA算法The algorithm is equivalent to Infomax by Bell and Sejnowski 1995 [1] using a maximum likelihood formulation. No noise is assumed and the number of observations must equal the number of sources. The BFGS method [2] is used for optimization. The number of independent components are calculated using Bayes Information Criterion [3] (BIC), with PCA for dimension reduction.-ICA algorithm:The algorithm is equivalent to Infomax by Bell and Sejnowski 1995 [1] using a maximum likelihood formulation. No noise is assumed and the number of observations must equal the number of sources. The BFGS method [2] is used for optimization. The number of independent components are calculated using Bayes Information Criterion [3] (BIC), with PCA for dimension reduction.

计算小波变换的Mallat算法需要逐级分解和重构，而本文通过矩阵变换方法，给出不需逐级计算的小波分解和重构矩阵的构造方法，并给出9/7小波的分解和重构矩阵的基向量及波形图。-Calculation of the Mallat algorithm of wavelet transform decomposition and reconstruction needs level, and this article through the matrix transformation method of calculation without level wavelet decomposition and reconstruction of the structure matrix method of 9/7 wavelet decomposition and re- conformation of the base matrix and the wave vector.

此程序用提升法实现第二代小波变换,采用时域实现,步骤先列后行-This procedure used to enhance law to achieve the second-generation wavelet transform, using time-domain realization of the first steps out later

小波十讲，是一本世界范围公认的经典学术名著,是当代数学著作中一本影响巨大的绝妙好书-Wavelet

提升方法实现小波变换，大大提高了小波变换的速度，并且不会降低图像恢复质量，很有价值的算法实现-upgrade method wavelet transform and greatly enhance the speed of wavelet transform, and will not reduce the image restoration quality, great value Algorithm

ecg delineator based on DWT.

一种可实际应用的基于小波分析的数字水印方法。已通过验证。-A practical application of wavelet analysis based on digital watermarking methods. Has been verified.

本程序提供了garbo变换与反变换的功能代码-This procedure provides a Garbo transform and inverse transform of the function code