搜索资源列表
adaptive_anisotropic_2D_gaussian_filter
- Gaussian filtering in one, two or three dimensions is among the most commonly needed tasks in signal and image processing. Finite impulse response filters in the time domain with Gaussian masks are easy to implement in either floating or fixe
dsp
- 数字信号处理 冲激响应 数字低通滤波器-digital signal processing impulse response wave digital lowpass filter
lvboqisheji
- 设计一个IIR数字低通滤波器, 逼近一组模拟滤波器的指标参数(通带截止频率Wp=2*pi*2000rad/s,阻带边界频率Ws=2*pi*3000rad/s,通带波纹 Rp=3db, 阻带衰减Rs=15db, 采样频率f=10000Hz); 分别用脉冲响应不变法和双线性变换法实现设计,列出传递函数并描绘模拟和数字滤波器的幅频和相频响应曲线。用上述设计滤波器完成几组给定信号的滤波,证明滤波器的有效性和滤波范围限制.-Design a IIR digital low-pass filter, app
A-new-adaptive-median-filter
- 一种新的自适应中值滤波方法。将3 x3窗口中心的极值点作为候选噪声点,若候选噪声点仍然是7 x7窗口的极值点,则该点即是噪声点。若以噪声点为中心的3 x3滤波窗口的中值不是噪声,则噪声用中值替换。重复以上过程,直到没有噪声点被替换。如果图像中仍然存在人的噪声团块,则噪声用相邻的三个信号点的灰度均值替换。实验结果表明,该方法能够有效去除脉冲噪声,并在抑制噪声的同时很好地保护图像的细节。-A new adaptive median filter. The extreme points of the
sc3
- 通过观察图像lena_noise.bmp可以看到,该图像主要包含高斯噪声、椒盐噪声等。 通过查阅资料可知,维纳滤波可以很好的滤除高斯噪声,而中值滤波对于椒盐噪声的滤出效果优异,因此本次采用维纳+中值的滤波方式进行图像的去噪处理。 图像常用评价方法有:信噪比、相关系数、清晰度。信噪比较为常用;相关系数 由于滤波会使原图像失去某些细节,因此这种评价方式为参考性指标而非绝对评判标准;清晰度 为图像子块的方差 综合考虑采用图像的峰值信噪比(PSNR)作为评价去噪效果指标(自编PSNR.
Untitled
- 程序目的是分别在灰度图像中加入一定量的高斯噪声和椒盐噪声,然后采用3×3的均值滤波器和3×3中值滤波器分别对噪声图像进行处理,给出两种处理方法的峰值信噪比(PSNR);仿效“中值滤波”的方法,对原图像分别进行“极大值滤波”和“极小值滤波”,对所形成的图像给出说明。-Program aims were a certain amount of Gaussian noise and impulse noise in grayscale image, and then using mean and me
nmyulse-step-step
- 单位脉冲,单位阶跃,正弦函数等连续信号的MATLAB表达式,-Unit impulse, unit step, sine function such as continuous signal expression in MATLAB,
ct277
- The commonly used digital signal modulation based on artificial neural network, Related impulse response analysis algorithm and inspection, Use Chaos and fractal analysis routines.
rsvwg
- Related impulse response analysis algorithm and inspection, There Wavelet Analysis Blind Signal Processing, Energy spectrum analysis and calculation.
4335
- LM386 audio signal amplification, Least-squares algorithm to fit a three-dimensional plane, Related impulse response analysis algorithm and inspection.