assignment

说明：  用matlab编的koch曲线，此程序画出了类似雪花的分形曲线(using Matlab series koch curve, which depicts the procedure similar to snowflakes, the fractal curve)

将一张图片由直角坐标转换为极坐标，并且分别显示图片(the trans of coordination)

回归法做图像变化检测。有图片有结果，有论文说明，可参照使用。(Regression method to do the image change detection. The outcome of a picture, a paper note, reference may be used.)

使用matlab 编写用有限元法求解偏微分方程的实例。(Examples of the use of matlab prepared to solve partial differential equations using the finite element method)

提升小波用于图像融合很重要，应用很广泛。此程序已在电脑上仿真实现。(Lifting Wavelet image fusion is very important, a wide range of applications. This program has been in the computer simulation.)

说明：  主要应用于对地震信号，数据的去噪，构造了地震数据然后去噪对比结果，(It is mainly used to denoise seismic signals and data, construct seismic data and then denoise the contrast results.)

非局部平均算法是一种自适应的空域滤波算法，可以看作Yaroslavsky滤波和双边滤波算法的改进。(Nonlocal average algorithm is a kind of adaptive spatial filtering algorithm, can be seen as Yaroslavsky filter and the improvement of bilateral filtering algorithm.)

使用matlab编辑文本并输出，作为Parmela的输入文件，同时通过matlab的Dos功能执行粒子模拟计算，节约时间。(Edit text using matlab and output, as the input file Parmela through Dos function matlab implementation of the particle simulation, saving time.)

清音的对数幅度谱，短时过零率，平均能量，基音周期(Voiceless logarithmic amplitude spectrum, short-term zero crossing rate, average energy, pitch period)

this is for block diagonalisation