[图形图像处理] LSB
信息隐藏，实现了最低有效位的隐写替换，并计算峰值信噪比和对比提取信息后的误码率
Information hiding implements the steganography substitution of the least significant bit, and calculates the peak signal-to-noise ratio and the BER after extracting the information by contrast. (2018-10-30, matlab, 880KB, 下载2次)
[图形图像处理] 雷达成像技术
《雷达成像技术》电子版，作者是刘永坦。本书系统地阐述了星载合成孔径雷达（SAR）和逆合成孔径雷达（ISAR）二维成像的基本理论与技术、信号处理技术、系统总体技术、系统实现及应用，为进一步研究成像雷达奠定较坚实的基础。
The electronic version of radar imaging technology is written by Liu Yongtan. This book systematically expounds the basic theory and technology of space-borne synthetic aperture radar (SAR) and inverse synthetic aperture radar (ISAR) two-dimensional imaging, signal processing technology, system technology, system implementation and application, laying a solid foundation for further research on imaging radar. (2018-10-18, matlab, 13472KB, 下载11次)
[图形图像处理] 4441
毕业设计有用，中介真值程度度量，基于中介真值程度度量的图像分割包括压缩比、运行时间和计算复原图像的峰值信噪比。
Graduation useful The true extent of the value of the intermediary measure, measure the true extent of the agency based on the value of image segmentation Including compression ratio, image restoration computing uptime and peak signal to noise ratio. (2017-05-04, matlab, 7KB, 下载1次)
[图形图像处理] ying-V8.8
包括最后计算压缩图像的峰值信噪比和压缩效果的源码,已调制信号计算其普相关密度，实现用SDRAM运行nios，同时用SRAM保存摄像头数据。
Including the final calculation of the compressed image peak signal to noise ratio and compression of the source, Modulated signals to calculate its density Pu-related, Implemented with SDRAM run nios, while saving camera data SRAM. (2017-04-18, Objective-C, 4KB, 下载1次)
[图形图像处理] jingbao
是学习PCA特征提取的很好的学习资料，包括压缩比、运行时间和计算复原图像的峰值信噪比,Gabor小波变换与PCA的人脸识别代码。
Is a good learning materials to learn PCA feature extraction, Including compression ratio, image restoration computing uptime and peak signal to noise ratio, Gabor wavelet transform and PCA face recognition code. (2016-12-16, matlab, 6KB, 下载3次)
[图形图像处理] image-yuandaima
使用灰度图像对各种去噪方法进行测试，使用半软阈值方法对图像进行去噪，均值滤波方法进行去噪(对比用)，计算灰度图像的峰值信噪比。
Use grayscale images on a variety of methods of noise attenuation test, using a semi-soft threshold method for image denoising, denoising mean filtering method (Comparative), calculate the peak signal to noise ratio grayscale images. (2016-04-04, matlab, 624KB, 下载10次)
[图形图像处理] Untitled2
1、将图像Chrysanthemum按质量等级分别为10、30、50、70、90存储成jpg文件，并分别命名为Chrysanthemum_010.jpg、Chrysanthemum_030.jpg、…… 、Chrysanthemum_090.jpg。
2、观察并说明jpg文件质量的变化情况。
3、计算压缩比，并画出压缩比随质量等级变化的曲线。
4、读取文件：Chrysanthemum_010.jpg、Chrysanthemum_030.jpg、…… 、Chrysanthemum_090.jpg。
5、计算峰值信噪比并画出峰值信噪比随质量等级变化的曲线。
1, the image by respectively according to the quality grade 10, 30, 50, 70, 90 stored as JPG file, and respectively named Chrysanthemum_010. JPG, Chrysanthemum_030. JPG,... , Chrysanthemum_090. JPG.
2, observe and explain the change of quality JPG files.
3, calculate the compression ratio, and draw the curve of the compression ratio change with quality grade.
4, read the file: Chrysanthemum_010. JPG, Chrysanthemum_030. JPG,... , Chrysanthemum_090. JPG.
5, calculate the peak signal-to-noise ratio and draw the curve of the peak signal-to-noise ratio change with quality grades. (2015-04-19, matlab, 1KB, 下载1次)
[图形图像处理] CPC-1813CV6N_CN_C00
搭配CPC-3813CLD3N和CPC-3813CLD3N-MIL主板使用可以满足用户对接口的不同需求，其主要面向信息通信，网络存储，网络音频处理，网络图像处理，工业控制，军事等应用领域的CPCI产品。
With CPC-3813CLD3N and CPC-3813CLD3N-MIL motherboard to meet the different needs of the user interface, and its mainly for information and communication, network storage, network audio processing, network image processing, industrial control, military and other applications CPCI products. (2014-09-06, Visual C++, 557KB, 下载3次)
[图形图像处理] xiaoboyuzhi
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，本算法采用各种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 threshold function, which contains the test image and the peak signal to noise ratio (2014-06-15, matlab, 1456KB, 下载15次)
[图形图像处理] curvelet--banruanyuzhi
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，本算法采用半软阈值对图像进行去噪，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 used for image denoising semi soft threshold, which comprises a side view image and peak signal to noise ratio (2014-06-15, matlab, 1612KB, 下载14次)
[图形图像处理] curvelet--ruanyuzhi
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，本算法采用软阈值对图像进行去噪，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 used for image denoising threshold, which contains the side view image and peak signal to noise ratio (2014-06-15, matlab, 1613KB, 下载16次)
[图形图像处理] cuevelet--yinyuzhi
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，本算法采用硬阈值对图像进行去噪，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 adopts hard thresholding for image denoising, which contains the side view image and peak signal to noise ratio (2014-06-15, matlab, 1612KB, 下载10次)
[图形图像处理] 77880
数字图像处理是指将图像信号转换成数字格式并利用计算机对其进行处理的过程。图像增强是数字图像处理的过程中经常采用的一种方法，它对提高图像质量起着重要的作用。本文先对图像增强的原理进行概述，然后对图像增强的方法分类并给出直方图增强、对比度增强、平滑和锐化等几种常用的增强方法的理论基础，通过Matlab实验得出的实际处理效果来对比各种算法的优缺点，讨论不同的增强算法的技术要点，并对其图像增强方法进行性能评价。
Digital image processing means converts the image signal into a digital form and processed by computer process them. Image enhancement is the process of digital image processing, a method often used, it is to improve the image quality plays an important role. This article first for an overview of the principles of image enhancement, and image enhancement methods for classification and gives the histogram enhancement, contrast enhancement, smoothing and sharpening enhancement of several commonly used methods of theoretical foundation, through Matlab experimental results of actual processing results to compare the advantages and disadvantages of various algorithms, discuss different techniques enhancement algorithm, and its performance evaluation image enhancement methods. (2013-07-04, matlab, 867KB, 下载10次)
[图形图像处理] TI_wavelet_denoising_GUI
基于平移不变量小波去噪的GUI程序，平移不变量小波去噪是阀值去噪的进一步改进，去除了信吉布斯现象
Translation invariant wavelet denoising based GUI program is translation invariant wavelet denoising threshold denoising further improvement, in addition to the letter Gibbs phenomenon (2013-06-12, matlab, 414KB, 下载62次)
[图形图像处理] image-fusion
影像融合，包括基于高通滤波的加权融合和非加权融合、基于HIS变换的融合，其中基于HIS变换的融合需要较多时间，这是由于直方图匹配要花费很多时间，具体算法可以参考武大贾永红的《数字图像处理》一书
Image fusion, including the weighted and unweighted fusion based on highpass filter and the fusion based on HIS transformation. Among them, the fusion based on HIS transformation may take a little long time, caused by the histogram matching which is time consuming. For concrete algorithm, you are referred to the book Digital Image Processing written by Ronghong Jia in Wuhan University.
(2013-03-04, Visual C++, 90KB, 下载13次)
[图形图像处理] histogram-matching
直方图匹配，用C++编写的代码，效果我已经用Photoshop（直接查看其灰度直方图即可）和基于HIS变换的影像融合检验过了，效果是正确的。具体原理可以参考武大贾永红的《数字图像处理》一书。如果读者觉得执行效率偏低，可以把代码中标明的可以注释的部分注释掉即可，不过这样效果会差一些
Histogram matching, in C++. The results have been verified by the software PhotoShop by checking the histograms. For concrete algorithm, you are referred to the book Digital Image Processing written by Ronghong Jia in Wuhan University. (2013-03-04, Visual C++, 194KB, 下载46次)
[图形图像处理] noise
1. 用 butterworth和理想低通滤波器对受椒盐噪声和高斯噪声污染的图像进行平滑处理, 计算平滑前后的PSNR(峰值信噪比).
2. 用 3x3邻域平均平滑和3x3中值滤波对受椒盐噪声和高斯噪声污染的图像进行平滑处理, 计算平滑前后的PSNR(峰值信噪比).
3. 用 roberts算子和Laplace算子对一图像进行锐化处理, 得到其边缘二值图像.
Salt and pepper noise and Gaussian noise images with butterworth and the ideal low-pass filter for smoothing, calculating smooth before and after the PSNR (peak signal to noise ratio).
(2) 3x3 neighborhood average in smoothing and 3x3 median filter images by the salt and pepper noise and Gaussian noise smoothing, computing smooth around the PSNR (peak signal to noise ratio).
Roberts operator and Laplace operator on an image sharpening, get the edge binary image. (2012-05-12, matlab, 20KB, 下载30次)
[图形图像处理] MCU_1908
针对CMOS 图像传感器输出的Bayer 格式的图像数据, 利用TI 公司的TMS320DM642 数字信号处理器的专用视频端口,可以实现图像捕获、数据传输的无缝连接的特点, 构建了以DM642 为核心的图像实时处理系统。在DM642 中采用两种通用方法(双线性插值、边缘检测) 和文中提出的信号相关的方法, 将从Bayer 公司的CMOS 图像传感器所捕获的8 位Bayer 格式图像数据, 转换为24 位RGB 格式彩色图像数据, 并通过PSNR(信噪比) 和NCD(归一化彩色差异规范) 两种评估方法进行检测。从实验结果可以看出文中提出的方法相对于通用方法提高了图像的信噪比, 锐化图像的边缘, 减少了图像高频信息的错误像素的数量, 提高视觉质量。
Bayer TMS320DM642 (2010-09-30, C/C++, 1121KB, 下载175次)
[图形图像处理] 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）源码结构清晰，在其基础上可快速开发出自己的水印软件。
err (2008-12-20, Visual C++, 2886KB, 下载103次)