[图形图像处理] DSP-transponder-signal-processing
利用TMS320VC5509A为核心的DSP处理硬件,通过软件实现自适应Notch滤波和瞬时频率序列方差检测(VIRD)运算,在较低信噪比使用条件下完成对单频测距信号的可靠检测和判定
Using tms320vc5509a DSP core processing hardware, adaptive notch filter and variance of instantaneous frequency sequence detection (Vird) operation is realized by software, in low signal to noise ratio under the conditions of use complete reliable detection of single frequency ranging signal and judging (2016-02-20, C/C++, 71KB, 下载5次)
[图形图像处理] Imageguidedfiltering_CN
这篇文章中,我们提出一个新颖的显式图像滤波器称为引导过滤器。起源于一个局部的线性模型,指导滤波器通过考虑指导图像的内容计算滤波输出,这种滤波器可以输入图像本身或另一个不同的形象
In this article, we propose a novel explicit image filter called the boot filter. The filter is derived a local linear model, which can be used to calculate the filter output by considering the content of the image. (2015-08-04, Visual C++, 257KB, 下载3次)
[图形图像处理] TBD
基于改进粒子滤波的检测前跟踪算法_王丁.caj
基于粒子滤波的弱目标检测前跟踪算法研究_龚亚信.caj
基于粒子滤波的弱小目标检测前跟踪算法研究_孙星.caj
雷达弱小目标检测前跟踪技术研究_王艳群.caj
Improved particle filter tracking algorithm based on detection
(2014-07-15, PDF, 7189KB, 下载36次)
[图形图像处理] xiaobo--ruanyinzhezhong
小波变换用于图像去噪可以很好的解决物体的点奇异特性，本算法采用软硬折中阈值函数对图像进行去噪，里面包含测试图像和峰值信噪比
Wavelet transform for image denoising can solve the body good point singularity, the algorithm used for image denoising between soft and hard threshold function, which contains the test image and the peak signal to noise ratio (2014-06-15, matlab, 332KB, 下载11次)
[图形图像处理] curvelet--xinfangfa
曲线波变换用于图像去噪可以很好的解决物体沿曲线边缘的特性，本算法采用改进阈值的一种新方法对图像进行去噪，里面包含侧视图像和峰值信噪比
Curvelet transform for image denoising can solve problems well along the curve edge features, the algorithm uses a new method to improve the threshold for image denoising, which contains the side view image and peak signal to noise ratio (2014-06-15, matlab, 3224KB, 下载31次)
[图形图像处理] lee-frost-kuan
SAR图像的去噪，包含lee滤波器，frost滤波器，kuan滤波器，并且自己编写的信噪比函数
SAR image denoising, including lee filter, frost filter, kuan filter, and I have written a function of SNR (2014-04-01, matlab, 875KB, 下载144次)
[图形图像处理] 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.m函数).
By observing the image lena_noise.bmp can see that the image consists mainly of Gaussian noise, salt and pepper noise. Through access to information shows that the Wiener filter can be well filtered Gaussian noise, and median filter for impulse noise filter out excellent results, so this value using Wiener filtering method+ in image denoising. Image evaluation methods commonly used are: noise ratio, correlation coefficient, clarity. SNR is more commonly used correlation coefficient as filtering the original image will lose some of the details, so this evaluation method as the reference index rather than absolute criteria clarity of image sub-block variance considering the peak signal using image noise ratio (PSNR) as an evaluation index denoising (self PSNR.m function). (2013-07-09, matlab, 63KB, 下载28次)
[图形图像处理] psnr
几个关于图像质量评价的函数。包括psnr峰值信噪比，均方误差rms，正则均方误差nmse等。可用于去噪图像和压缩图像的质量评价
Several image quality evaluation of the function. Including psnr PSNR, mean square error rms, it is mean-square error nmse other. Can be used for image denoising and compression of image quality evaluation (2013-06-04, matlab, 2KB, 下载30次)
[图形图像处理] DCTJPEG
blkproc.m,DCHuffmanEncoding.m,ACHuffmanEncoding.m,zigzag.m,PSNR.m,
对灰度图像进行DCT变换,量化,ZigZag扫描,Huffman编解码,反量化,反DCT变换而重建图像。
其中，blkproc.m为分块DCT变换函数；
DCHuffmanEncoding.m，ACHuffmanEncoding.m分别为DC和AC变换系数的Huffman码表函数；
zigzag.m为ZigZag扫描函数；PSNR.m为求图像峰值信噪比函数。
Copyright 2008 Reserved @ Wang Chengyou @ Tianjin University, P.R.China.
This function tests the DCTJPEG codec (2013-03-24, Visual C++, 3KB, 下载11次)
[图形图像处理] dif_fermi_filter
对磁共振图像数据进行费米滤波，对滤波后图像进行边缘区域和图像区域的选取，并分别对两者进行均值和标准差的计算，最后得出信噪比。
For magnetic resonance images, we can use a Fermi filter to the image for filtering. After the selection of the area of the air and the area of the image,then calculate the mean value and standard deviation value of both. Finally ,we can obtain the conclusion the new SNR value . (2013-01-18, matlab, 985KB, 下载18次)
[图形图像处理] MRI_Area_Slectionz-and-SNR
对磁共振图像进行边缘区域和图像区域的选取，并分别对两者进行均值和标准差的计算，最后得出信噪比。
For magnetic resonance images, how can we select the area of the air and the area of the image,then calculate the mean value and standard deviation value of both. Finally ,we can obtain the conclusion the signal-to-noise ratio. (2013-01-18, matlab, 985KB, 下载11次)
[图形图像处理] psnr-and-nc
数字音频水印中，原始载体音频和含水印音频之间的峰值信噪比PSNR和原始水印与提取出来的水印之间的归一化相关系数NC
Digital audio watermarking normalized correlation coefficient between PSNR PSNR between the original carrier audio and watermarked audio and the original watermark and extracted watermark, NC (2013-01-05, matlab, 1KB, 下载45次)
[图形图像处理] tu-xiang-xiao-mu-biao-jian-ce
本源代码是自己编写的关于图像小目标的检测（matlab版），其中包括对不同对比度、信噪比下的图像小目标进行检测。
The source code is written about the image of his small target detection (matlab edition), including the different contrast, signal-to-noise ratio of image detect small targets. (2012-02-17, matlab, 8KB, 下载68次)
[图形图像处理] CooperativeSpectrumSensingBasedoSNRComparisonforCo
认为不同的认知节点信噪比( SNR)
导致了各节点本地检测结果的可靠性不同,故在此基础上提出了一种基于融合中心进行SNR比较
的认知无线电协作频谱检测算法。
That the different cognitive node SNR (SNR) has led to the detection results of the reliability of the local node is different on this basis it was proposed based on fusion center collaboration SNR compared cognitive radio frequency spectrum detection. (2010-04-29, Others, 482KB, 下载107次)
[图形图像处理] work
图像消噪是图像预处理的主要任务之一，其作用是为了提高图像的信噪比，突出图像的期望特征。本函数利用小波变换消除噪声，具有较好的实验结果。
Image denoising is one of the main tasks of image pre-processing, its role is to enhance the image signal to noise ratio, highlighting the expectations of the image features. This function is the use of wavelet transform to eliminate the noise, with good results. (2010-01-24, matlab, 11KB, 下载13次)
[图形图像处理] photoliangduzhengjian
调试时的计算机的配置：Windows2000/XP + Visual Studio 6.0 企业版 这是处理图象的亮度增减的原代码
注意，本目录中大部分程序只能对256色图像进行操作。
debugging the computer configuration : Windows2000/XP Visual Studio 6.0 Enterprise Edition is the image-processing The degree of change to the original code, Catalog most procedures only for 256-color image for the operation. (2007-05-22, Visual C++, 46KB, 下载2次)
[图形图像处理] photosuofang
调试时的计算机的配置：Windows2000/XP + Visual Studio 6.0 企业版 这是处理图象缩放的原代码．
注意，本目录中大部分程序只能对256色图像进行操作。
debugging the computer configuration : Windows2000/XP Visual Studio 6.0 Enterprise Edition is shrinking image processing up to the original code. Attention to the Catalog most procedures only for 256-color image for the operation. (2007-05-22, Visual C++, 192KB, 下载3次)
[图形图像处理] photoxuanzhuan
调试时的计算机的配置：Windows2000/XP + Visual Studio 6.0 企业版 这是处理图象旋转的原代码 ．
注意，本目录中大部分程序只能对256色图像进行操作。
debugging the computer configuration : Windows2000/XP Visual Studio 6.0 Enterprise Edition is handling this image rotation to the original code. Attention to the Catalog most procedures only for 256-color image for the operation. (2007-05-22, Visual C++, 49KB, 下载5次)
[图形图像处理] rhotopingyi
调试时的计算机的配置：Windows2000/XP + Visual Studio 6.0 企业版 这是处理图象平移的原代码
注意，本目录中大部分程序只能对256色图像进行操作。
debugging the computer configuration : Windows2000/XP Visual Studio 6.0 Enterprise Edition is image-processing shift attention to the original code, Catalog most procedures only for 256-color image for the operation. (2007-05-22, Visual C++, 49KB, 下载1次)
[图形图像处理] dwtprocedure
整个数字水印的程序。包括峰值信躁比的计算，各种攻击后的水印提取等等。
entire digital watermarking process. Including peak impatient than the letter, after the attacks watermark extraction, and so on. (2007-04-14, matlab, 4KB, 下载252次)