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- (1)实现图像文件的打开、保存、另存为、打印功能; (2)图像直方图统计和直方图均衡,要求显示直方图统计,比较直方图均衡后的效果; (3)能对图像加入各种常见噪声,并通过几种滤波算法实现去噪并显示结果。比较去噪效果; (4)频谱处理,能够分析图像频谱,显示频谱图; (5)实现空域滤波中的平滑滤波和锐化滤波。 -Digital Image Processing
2-DFFT
- 该实验的目的是开发一个 2-D FFT程序包。要求程序能完成下面的功能: (a) 用因子 (-1)x+y 乘以输入图像,以实现滤波的中心化变换; (b) 用一个实矩阵乘以一个复数矩阵,即用实矩阵中的元素同时乘以复数矩阵对应位置上的复数的实部与虚部。 可以通过调用两个图像的乘法程序来实现对应元素的相乘; (c) 计算反付立叶变换; (d) 结果乘以 (-1)x+y ,并取其实部; (e) 计算频谱。 -The purpose of this ex
Pd-SNR
- 认知无线电网络中频谱检测过程中检测概率随信噪比的关系-In CR networks,the relation between SNR level and detection probability
picture
- 使用matlab,画出一百个点的图(频谱分析)-Matlab, draw the diagram of one hundred points (spectral analysis)
pinpuyuan
- 数字图像处理傅里叶频谱圆,便于确定滤波器中心,以及截至频率!-Fourier spectrum of digital image processing, round, easy to determine the filter center, as well as the frequency!
UltroSound-RF-signal-processing
- 使用matlab工具对RF信号进行处理.频谱分析以及图像重建.-RF signal processing using matlab tools. Spectrum analysis and image reconstruction.
Square-wave
- matlab 实现傅里叶变换 fs FT DFS DFT FFT 以及余弦函数的抽样 离散傅里叶变换 频谱 函数叠加后的傅里叶变换 频谱 -matlab to achieve the Fourier transform fs FT DFS DFT FFT and cosine functions sampling discrete Fourier transform the spectrum of the Fourier transform of the spectrum function su
Sine-signal-superposition
- 分别画两个频率不同的正弦信号及他们叠加的信号,y1、y2及他们的叠加信号进行采样,进行傅里叶变换,幅频图,频谱图-Videos two sinusoidal signals of different frequencies, and their superimposed signal, Y1, Y2 and their superimposed signal to be sampled, the Fourier transform, amplitude and frequency diagram
segmented-function
- 分段函数,进行采样,画出采样图,幅频图,频谱图-Piecewise function, sampling draw sample Figure Figure amplitude-frequency spectrogram
sequencedfs
- 序列进行离散傅里叶级数变换,画出相位图,频谱图。改变序列长度,然后重复上述过程-Sequence of discrete Fourier series transform, draw the phase diagram, spectrogram. Change the length of the sequence, and then repeat the process
fft
- 实现图像的傅里叶变换和频谱图…………实现图像的傅里叶变换和频谱图-The Fourier transform of the image and frequency spectrum
lab3
- 编写16点基4-FFT算法的MATLAB程序(studentname.m文件)。 产生16点输入序列x,算出16点频谱序列X,用stem(X)显示频谱图形。-4-FFT algorithm
bpskd
- 使用matlab实现的BPSK信号产生和加入噪声前后的频谱对比以及FFT测频和一阶差分法测频对比-Using matlab to achieve the BPSK signal generator and adding noise before and after the spectrum contrast and FFT frequency measurement and first-order differential method to measure the frequency cont
Fourier
- 实现一维离散信号的傅里叶频谱分析,并进行结果显示-One-dimensional discrete signal Fourier spectrum analysis, and the results show that
untitled
- 将正弦函数取样后与自生产图像叠加,将叠加后的图像做傅里叶变换,得到频谱图像-Sampling the sine function with self-production image overlay, superimposed images to do Fourier transform to obtain the spectrum image
Matlab
- 采用matlab进行傅里叶变换,将图像变换成频谱形式的图像。-Using MATLAB Fourier transform, the image is converted into a spectrum in the form of image.
2DFFT-IFFT
- 这是我做的一个二维傅里叶变换的程序,可以对图像进行2DFFT变换得到频谱图,并利用2DIFFT得到原图像-I do a two-dimensional Fourier transform procedure, 2DFFT transform spectrogram image and utilize 2DIFFT original image
sound-spectroanalyzer
- 基于MATLAB的简易声音信号频谱分析仪设计源码及设计报告。可以实现音频信号的不同频段滤波。-MATLAB simple voice signal spectrum analyzer design source code and design reports. Can achieve a filtering of the different frequency bands of the audio signal.
GDI
- 绘制并动态显示频谱图,利用GDI绘图,动态显示频谱图的流向等-GDI programming is about Spectrum map~~~~~~
demo
- 音频信号的处理:导入一个时长若干秒的音频信号,得到该音频文件的频率fs和幅度A,显示信号的时域图和频谱图,加入频率为fs/3,幅度为2A的噪声,分析、显示并播放有噪声时时域图和频谱图,以及滤除噪声后的信号的时域图和频谱图。-Audio signal processing: Import a duration of several seconds of the audio signal to obtain a frequency fs, and the amplitude A of the aud