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基于matlab的语音信号处理快速傅里叶变换程序(Fast Fourier Transform Program for Speech Signal Processing Based on MATLAB)

使用4阶龙格库塔定理计算一阶微分方程组，方程组有3个方程(RK calculation of differential equations)

实现对一幅灰度和彩色图像作的离散余弦变换,选择适当的DCT系数阈值对其进行DCT反变换.(The realization of a piece of gray and color images for the discrete cosine transform, select the appropriate thresholds for DCT coefficients of its inverse transform DCT.)

基于信息熵的迭代法求最佳阈值，并附参考论文及KSW熵法求阈值的程序。两个程序经实验测试通过无误。(Entropy-based iterative method for optimal threshold, together with reference papers and KSW entropy threshold method procedures. Two experimental test procedures correctly.)

说明：  sift特征提取，ransac剔除匹配点进行优化，实现图像拼接。(SIFT feature extraction, RANSAC eliminate matching points for optimization, to achieve image mosaic.)

说明：  实现了打开一副位图，显示起像素分布的直方图(Figure shows the histogram of open spaces)

matlab实现的小波图像压缩，序列图像压缩处理，效果很理想(Matlab realization of wavelet image compression, image compression sequence, and the effect is very satisfactory)

光学图象几何畸变的快速校正算法Fast optical image geometric distortion correction algorithm(Fast optical image geometric distortion correction algorithm Fast optical image geometric distortion correction algorithm)

gif格式图片生成，包括动画生成，是非常好的入门学习资料。(gif format image generation, including animation generation, is a very good learning materials.)

点云特征提取 详细 实用 经典的讲述过程及方法(Point Cloud Feature Extraction practical details about the processes and methods of classic)