搜索资源列表
用MATLAB读取一幅图像
- 用MATLAB读取一幅图像,并且计算其图像信噪比,Using MATLAB to read an image and calculate the image SNR
Nlayer_denoise.rar 小波阈值去噪
- 小波阈值去噪。对图像加噪,并进行小波1到4层分解去噪,给出信噪比走势图,Wavelet threshold denoising. Image noise, and 1-4 layers of wavelet decomposition of de-noising, signal to noise ratio is given chart
psnr.rar
- 该函数是用于计算峰值信噪比和信噪比的程序,it can be used to calculate psnr and snr
add_noising
- my_noise文件是已知信号方差,加入信号噪声,可以加入高斯噪声,淑盐噪声,等其他噪声十分有用 其他两个函数时加入噪声信噪比SNR,但是有一点,这种方法并不准确,不能保证加入噪声信噪比为SNR,实际测试中可以看出,但是可以加入相同的信噪比的噪声-my_noise document is known to signal variance, by adding signal noise, Gaussian noise can be added, suk salt noise, noise, a
elint
- 这是一本关于电子情报雷达信号分析的电子版,主要内容包括电子情报的特征和基础、模拟和数字系统的信噪比考虑、信号功率、极化、波数分析、天线扫描分析、脉内分析、脉冲重复间隔分析、载频分析、脉冲串去交错、确定elint参数的极限以及elint数据文件 -This is an electronic intelligence on the radar signal analysis of the electronic version, the main contents include the char
project1
- 可添加随机噪声、高斯噪声、椒盐噪声,并比较几种去噪算法的峰值信噪比-Can add random noise, Gaussian noise, salt and pepper noise, and compare several denoising algorithm PSNR
final
- 小波变换处理带噪语音信号,对于低信噪比的情况下相当有效,直接改文件名就可完成-Wavelet Transform of Noisy Speech signal processing for low SNR case quite effectively, direct to the file name can be completed
Watermark_3
- 信息隐藏与水印技术系列实验之三:DWT变换域可见图像水印算法(开发工具:vc2005):实现在一个256色灰度载体图像变换域数据中嵌入一个256色灰度文本图像水印。其主要功能如下: (1)可以载入不同的载体图像和水印图像,但载体图像和水印图像在本软件中被限制为256色灰度图像,若要用其它图像甚至彩色图像,请修改源码。 (2)水印在载体图像中的嵌入位置及嵌入强度可以设置。 (3)可以计算原始图像和含水印图像的峰值信噪比(PSNR),以对含水印图像进行客观质量评价。 (4)源码结构清
ComputePSNR
- 计算图像经小波变换,低频部分重建后,与原图像的信噪比!-Images by calculating the wavelet transform, after the low-frequency part of the reconstruction of the original image signal to noise ratio!
IMageQualityEvaluatingFunction
- 两个图像质量评价函数,psnr峰值信噪比,正则均方误差nmse,能可用于去噪图像和压缩图像的质量评价,很有用啊。-Two image quality evaluation of the function. Including psnr PSNR, it is mean-square error nmse other. Images can be used for de-noising and compression of image quality evaluation.
psnr
- 计算峰值信噪比,可以用于检查图像密写的效果-Calculation of peak signal to noise ratio, images can be used to check the effect of Steganography
pingjia
- 图像处理效果评价,评价指标包括峰值信噪比,熵,以及均方误差,具体公式请参考相关文献-photo
ObjectiveFidelityCriteria
- 本实验要求编写一个计算压缩-解压缩图像的均方根误差、均方信噪比的程序。该程序是一个通用程序。编写程序产生图示的结果。使用上面的保真度准则程序计算可视信息的损失特性。-Prepared in this experiment, a calculation of compression- decompression of the root-mean-square error of image, mean square signal to noise ratio of the procedure. Th
image_processing_quantize
- 该代码用于给出在matlab环境下求峰值信噪比及比特率。-The matlab code for the given environment in order to peak signal to noise ratio and bit rate.
filter_Rough
- 这个程序时对图像进行粗略去噪处理,可以输出去噪后 图像及信噪比-This program pairs a rough denoising image processing, can output images and SNR after denoising
PSNR
- 峰值信噪比在信号处理中经常用到,这是一个将原始图像和压缩图像的峰值信噪比进行比较的例子。-Peak signal to noise ratio is often used in signal processing, which is a the original image and compressed image peak signal to noise ratio compared examples.
testimages
- 用来做信噪比、峰值信噪比和均方差检测的图像,比较经典,都是灰度图像-Used for signal to noise ratio, peak signal to noise ratio and standard deviation detection images, more classic, all gray image
PSNR
- 两个图片的峰值信噪比,用MATLAB实现的,程序里面有详细的例子讲解-PSNR of two images, realized with the MATLAB
数字图像处理上机实验
- 数字图像处理计算图像峰值信噪比 利用JND进行图像增强(Calculate peak signal to noise ratio)
WPSNR
- 计算信噪比的测试程序代码,利用对比敏感度函数(CSF)测量失真图像的空间频率。(Calculation of the test code SNR, the contrast sensitivity function (CSF) measurement of the spatial frequency of image distortion.)