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数字图像处理Matlab编程
- 本程序是对一幅图像进行变灰度、旋转、锐化、在图像上画圆或椭圆、直线等操作的程序。 说明：要实现相应功能的操作，需要在输入框内输入正确的表达式。举例如下： 画直线：x1=20,y1=15,x2=150,y2=100 画圆：x=100,y=100,r=20 画椭圆：x=100,y=100,r=20,a=16,b=9 旋转：x=30(度数)，ax=100,ay=90 锐化：x=80-this procedure is a gray image change, rotation, sharpening
用bandelet进行图像分割的matlab代码
- A Matlab Tour of Second Generation Bandelets 附有每部分代码的说明 function x = perform haar transform(x, dir); x = x(:); % to be sure we have a column vector J = floor( log2(length(x)) ); % number of scales if dir==1 % forward transform for j=1:J c = x(
Matlab 牛顿插值法
- x=a:(b-a)/n:b; %插值节点 y=f(x); plot(x,y,'b') %用蓝色线作被插函数图象 hold on z=a:(b-a)/(2*n):b; n=length(x); for j=2:n for i=n:-1:j y(i)=(y(i)-y(i-1))/(x(i)-x(i-j+1));%计算差商 end end u=y(n); m=length(z); for j=1:m for i=n-1:-1:1 u=y(i)
Matlab的M文件编写的数控插补2D直线算法仿真
- Matlab的M文件编写的数控插补2D直线算法仿真。具体参数可使用：X-500,Y-600，Fc-600，Fs-0，Fa-0，at--200.仿真的本意是为了验证DSP上同类插补算法的正确性,Matlab M-file to prepare the CNC interpolation algorithm for 2D simulation of a straight line. Specific parameters can be used: X-500, Y-600, Fc-600, Fs-0
fuzzy control.语言变量X，Y，Z的隶属度函数
- 语言变量X，Y，Z的隶属度函数.模糊控制规则表，还有matlab程序，阐述了模糊规则的生成过程！,good
segsnr.利用matlab进行语音信号的信噪比求解
- 利用matlab进行语音信号的信噪比求解。。,clc clear x=wavread( x1 ) y=wavread( y1 )
swqm.rar
- 三维曲线曲面比较演示系统程序设计 设计一个图形用户界面（GUI）演示常见的三维函数图形，至少包含“三维绘图” 、“选项” 、“退出”等菜单，三维绘图的包括：参数方程x=e-t/20cos(t), y= e-t/20sin(t),z=t其中t 为0到2π、参数方程x=t,y=t2,z=t3其中t为0到1之间（在同一图形界面中分别绘制它们的三维曲面和三维曲线图）。“选项”菜单主要包括：网格开关，图例开关，坐标边框开关，色度空间选择菜单，曲线颜色菜单。,Comparison of three-dim
Homography.rar
- 已知图象4点坐标和转换后图像相对应4点坐标， 利用openCV求出homograghy 3x3 矩阵， 然后输出变换后图像,There is an input image called "warpin". The goal is to warp this image so that the tiles are approximately square, that is the camera is rotated to look down, which produces an image call
101259378luv_rgb_yuv_lab_space
- Convert a color image between color representations. B = COLORSPACE(S,A) converts the color representation of image A where S is a string specifying the conversion. S tells the source and destination color spaces, S = dest<-src , or alte
shuxuejianmo_8.rar
- （拟合） 用给定的多项式，y=x3-6x2+5x-3，产生一组数据(xi,yi，i=1,2,…,n),再在yi上添加随机干扰(可用rand产生(0,1)均匀分布随机数,或用rands产生N(0,1)分布随机数)，然后用xi和添加了随机干扰的yi作的3次多项式拟合，与原系数比较。 如果作2或4次多项式拟合，结果如何？ ,(Fitting) with a given polynomial, y = x3-6x2+5 x-3, generated a set of data (xi, yi, i
fr.rar
- FR共轭梯度算法求极小值。y为给定函数，x为函数变量，x0为搜索起始点 返回值fm为极小值，xm为极小值点,FR conjugate gradient algorithm for the minimum. y for a given function, x as a function of variables, x0 the starting point for the search to return to the value of fm for the minimum, xm for th
PLSUVECV.rar
- PRINCIPLE: The UVE algorithm detects and eliminates from a PLS model (including from 1 to A components) those variables that do not carry any relevant information to model Y. The criterion used to trace the un-informative variables is the reliability
minortick
- 介绍了matlab中x，y坐标中小刻度标尺的几种画法-Matlab introduced several small-scale painting
ding
- 选取windows系统自带的ding.wav信号作为分析对象，在Matlab软件平台下，利用函数wavread对音频信号进行采样，记住采样频率和采样点数，听一下原始声音sound(y, fs, bits)。 （2）音频信号的频谱分析，先画出音频信号的时域波形；然后对音频号进行快速傅里叶变换fft(y,N)，N取32768，画出信号的频谱特性，加深对频谱特性的理解。 （3）根据频谱，反演时域特性，画出时域波形。寻找幅值最大的两个频率，此频率除以fft点数在乘以采样频率就是信号的主频，即可合
first
- 二维傅里叶变换,对图像进行二维傅里叶变换处理-Two-Dimensional Fast Fourier Transform The purpose of this project is to develop a 2-D FFT program "package" that will be used in several other projects that follow. Your implementation must have the capabilitie
nanewton1
- 牛顿迭代法 若高阶非线性方程组: u ( x , y) = 0 v ( x , y) = 0 可以用迭代公式 -Newton iteration if the higher-order nonlinear equations: u (x, y) = 0v (x, y) = 0 can be used iterative formula
conv
- 利用DFT和IDFT计算x(n)和y(n) 的10点、15点、20点圆周卷积，然后与线形卷积结果画图比较-Calculated using DFT and IDFT x (n), and y (n) 10 points, 15 points, 20 points cyclic convolution, and then drawing comparison with the linear convolution result
ssim_index
- Zhou Wang proposed a new idea of Structural Similarity Index (SSIM )for image quality measurement based on the assumption that the HVS is highly adapted to extract structural information from the viewing field. The Mean Structural Similarity Index (M
matlab
- 产生右图所示亮块图像 f1(x,y)（128×128大小，暗处=0，亮处=255），对其进行FFT，同屏显示原图f1和FFT(f1)的幅度谱图，若令f2(x,y)=（-1）x+y f1(x,y)，重复以上过程。以及旋转45度后进行变换-Generating shown bright block image F1 (x, y) (128128 size dark = 0, light at = 255), the FFT, the same screen display Original f1 a
lorenz
- lorenz系统分岔轨迹绘制，包含吸引子图，X,Y,Z相时间序列-lorenz draw bifurcation path, including the attractor graph, X, Y, Z-phase time-series