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数字图像处理alpha版
- 本软件是由作者经过数字图像处理课程的学习,采用vc++.net将其基本算法实现,其算法主要包括: 1.点运算(灰度直方图,直方图均衡处理,线性运算,二值化,灰度化等) 2.几何运算(旋转,放缩,镜像,平移) 3.几何空间增强(均值,中值滤波器,k近邻均值,中值滤波器,Roberts,sobel,priwitt,laplacian,wallis锐化算子等) 4.频率域增强(基2FFT进行空间域到频率域的转换,高斯,理想,巴特沃斯高低通滤波器) 5.形态学(膨胀,腐蚀,开,闭运算,边缘提取) 6.图
fft.rar
- implement 1D and 2D FFT and Inverse 2D FFT ,obtain the power spectrum from a set of FFT coefficients and achieve the Butterworth Lowpass Filter,implement 1D and 2D FFT and Inverse 2D FFT ,obtain the power spectrum from a set of FFT coefficients and a
数字图像处理算法
- 数字图像处理:先进行傅里叶变换,然后低通滤波;最后还原。并附有余弦变换对照结果。,DIP:first FFT,then Butterworth filter,last inverse the course,also the DCT for comparition.
Dsp_c.rar
- dsp算法40例,包括fft、滤波器、谱运算等 1. 将模拟滤波器转变为数字滤波器。 2. 由得到幅频响应 。 3. 用Burg算法求AR模型的参数。 4. 由AR模型参数得到功率谱。 5. 用Levinson算法求解Yule-Walker方程以得到 阶AR模型的参数 。 6. 实现双线性Z变换。 7. 设计巴特沃斯模拟低通滤波器,求出转移函数 。 8. 设计切比雪夫I型模拟低通滤波器,求出转移函数 。 9. 直接由定义求 点复序列 的DFT 。 10.利用经典的Cooley
Fourier filter
- 程序包中包括Chebyshev低通滤波器、巴特沃斯模拟低通滤波器、Cholesky分解、DFT算法、FFT算法,可以直接移植到嵌入式系统或DSP中实现。-Package includes Chebyshev low-pass filter, Butterworth low-pass filter simulation, Cholesky decomposition, DFT algorithm, FFT algorithm, can be directly transplanted to the
ClassDesign
- 设计了一个图像处理的类,有sobel、Laplacian等边缘检测算法的实现,还有FFT、理想高通、低通滤波器、巴特沃斯滤波器的实现-Designed a type of image processing, a sobel, Laplacian edge detection algorithm such as the realization, as well as FFT, the ideal high-pass, low pass filter, Butterworth filter to a
pracsim1
- 通信基本仿真,适合初学者学习的代码,包括了调制,分析等等:使用IIR filter的经典模拟滤波器(巴特沃斯Butterworth,切比雪夫Chebyshev),Bartlett周期图谱,加窗Bartlett周期图谱,基带波形仿真,IIR的贝塞尔滤波器Bessel Filter,二进制对称信道Binary Symmetric Channel仿真,比特序列,Remez滤波,BPSK复合基带信号仿真,载波生成器,椭圆滤波器Elliptical Filter,FFT,FSK调制及解调,高斯噪声Gaus
pracsim-2
- 通信基本仿真2适合初学者学习的代码,包括了调制,分析等等:使用IIR filter的经典模拟滤波器(巴特沃斯Butterworth,切比雪夫Chebyshev),Bartlett周期图谱,加窗Bartlett周期图谱,基带波形仿真,IIR的贝塞尔滤波器Bessel Filter,二进制对称信道Binary Symmetric Channel仿真,比特序列,Remez滤波,BPSK复合基带信号仿真,载波生成器,椭圆滤波器Elliptical Filter,FFT,FSK调制及解调,高斯噪声Gaus
pracsim-3
- 通信基本仿真3,适合初学者学习的代码,包括了调制,分析等等:使用IIR filter的经典模拟滤波器(巴特沃斯Butterworth,切比雪夫Chebyshev),Bartlett周期图谱,加窗Bartlett周期图谱,基带波形仿真,IIR的贝塞尔滤波器Bessel Filter,二进制对称信道Binary Symmetric Channel仿真,比特序列,Remez滤波,BPSK复合基带信号仿真,载波生成器,椭圆滤波器Elliptical Filter,FFT,FSK调制及解调,高斯噪声Gau
highpassfilter
- 问题是高切滤波或低通滤波,如果采用硬件实现,速度最快,但是现在计算机速度这么快,硬件实现起来相对麻烦,成本高,且灵活性性差, 软件实现相对方便多了,具体体的操作步骤如下(频率域) 先对数据作正FFT,再对变换后的频域数据乘以滤波因子,滤波因子的选择有理想高通、巴特沃斯高通、指数高通、梯形高通,一般选择梯形高通滤波因子,具体原因你可从数字信号处理的书上找到,,接下来将数据再作逆FFT就是了,还有就是在空间域作滤波,这里有一个带同滤波的程序的程序,你可参考一下,(将低切参数设为零就是
fft
- 巴特沃斯、切比雪夫滤波器指标和设计,完成相应滤波功能-Butterworth, Chebyshev filter indicators and design, complete the appropriate filtering
frequencyfilt-hpf
- FFT Filters provide precisely controlled low- and high-pass filtering (smoothing and sharpening, respectively) using a Butterworth characteristic. The image is converted into spatial frequencies using a Fast Fourier Transform, the appropriate filter
matlAB-ge-zhong-bian-huan
- 基于matlAB的切比雪夫、FFT频谱分析、FFT线性卷积、巴特沃斯程序代码,自己编写的-Based on The Chebychev matlAB the FFT spectrum analysis, FFT linear convolution code Butterworth own written
DSP
- 数字信号处理:巴特沃滤波器和切比雪夫滤波器的仿真比较 增加信号截取长度和插零对fft分辨率的影响-Digital Signal Processing: Butterworth filter and a cut than the Chebyshev filter simulation comparison fft resolution to increase the length of the signal interception and zero insertion
Digital_Image_Process_Example
- 本展示程式,采用Borland C++ Builder编译器开发, 参考书籍为 Digital Image Processing, Prentice Hall, 2002. (2nd edition) 具备功能如下: 空间域处理 Spatial domain proc.. 灰阶值转换 Gray Level Trans.. 遮罩型滤波器 Spatial Filter 统计型滤波器 Statistics Filter 梯度运算
cwplib
- Among other things it contains: prime factor fft routines allocation of multi-dimensional arrays complex number manipulation big matrix handling routines interpolation routines Butterworth filters differentiator approximations sorting
fft
- 对两组时间-力这两组数据进行傅里叶变换及巴特沃斯低通滤波-Time for two- force these two sets of data and Fourier transform Butterworth low-pass filter
dsplab205_exe
- DSPLab is a library of delphi components for digital signal processing. The library contains two components: IIR Filter and FFT. IIR Filter is Butterworth, Bessel and Chebyshev infinite-impulse-response (IIR) filters, with lowpass, highpass, bandpass
Filtering
- FFT and inverse FFT are implemented in C.Low pass and high pass filtering using butterworth ,gaussian,ideal filters are implemented
fft
- 可以生成一种巴特沃斯滤波器,滤波器系数存储在文件里,在对信号进行数字滤波有比较好的应用。-Can produce a Butterworth filter, the filter coefficients are stored in the file, the signal in the digital filter has a better application.