Description: 运用contourlet变换和小波变换对图像进行去噪处理,并将二者的去噪效果通过PSNR进行对比.文中包含去噪.m文件和求PSNR的.m文件.程序中注释详细,值得参考.通过测试的代码.-Use Contourlet transform and wavelet transform for image denoising treatment, and the denoising effect of the adoption of both PSNR comparison. Paper contains denoising. M documents and PSNR for the. M file. Program notes in detail, it is also useful. Through test code. Platform: |
Size: 171008 |
Author:chy |
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Description: 用matlab实现color moments算法，先把rgb图像转换到HSV空间，然后计算每个分量的一二三阶矩，最后组成9维向量进行比较。-Using color moments algorithm matlab realize, first convert rgb images to HSV space, and then calculated for each component of the 123-order moments, the final composition of 9-dimensional vector for comparison. Platform: |
Size: 1024 |
Author:杨红菊 |
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Description: Matlab source code for DCT-based watermarking for grayscale images. DCT-based watermark recovering without resorting to the uncorrupted original image. Digital watermarking has been proposed as a viable solution to the need of copyright protection and authentication of multimedia data in a networked environment, since it makes possible to identify the author, owner, distributor or authorized consumer of a document.
A new watermarking technique to add a code to digital images is presented: the method operates in the frequency domain embedding a pseudo-random sequence of real numbers in a selected set of DCT coefficients. Watermark casting is performed by exploiting the masking characteristics of the Human Visual System, to ensure watermark invisibility. The embedded sequence is extracted without resorting to the original image, so that the proposed technique represents a major improvement to methods relying on the comparison between the watermarked and original images.
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Size: 98304 |
Author:omar |
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Description: 本文实现了在连续视频数据流中几种不同的运动检测算法，他们都是基于当前帧图像和前一帧图像的比较，程序使用了AForge.NET framework库。其中的示例代码支持下面几种视频格式：AVI文件、网路相机的JPEG和MJPEG，本地的采集设备(USB相机等)。-This article implements a continuous video data stream in several different motion detection algorithms, they are based on the current frame and previous frame image comparison, the program uses the AForge.NET framework library. Sample code which supports the following video format: AVI file, network camera JPEG and MJPEG, the local collection devices (USB cameras, etc.). Platform: |
Size: 1349632 |
Author:憨豆 |
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Description: 图像分割是把图像划分成具有实际意义的互补交迭的区域的集合。在图像分割之前，图像区域的数目未知，而在分割后各个区域同时满足均匀性和连通性的条件，故图像分割是一个复杂的过程，目前大多数研究都是针对某一类型图像或者某一具体应用的分割。图像阈值化分割的基本思想是确定一个阈值，然后把每个像素点的像素值和阈值相比较，根据比较的结果把像素划分为两类，前景(1)或背景(0)。该方法的关键是确定一个最优的阈值。常用的阈值确定方法有直接门限法、类间最大方差法(otsu法)、分水岭算法、最小误差法、最大熵法等。该段代码就是图像的阈值分割。-The image segmentation is divided into the practical significance of the emerging area of complementary set. In the image segmentation, before the number of image region, the unknown, and after each area in division at the same time satisfy the uniformity and connectivity condition, so the image segmentation is a complicated process now, most research are for a certain type image or a particular application of the division. Image threshold segmentation of the basic idea is to determine a threshold, then put each pixel threshold value of the pixels and compared, according to the result of the comparison the pixel divided into two categories, the prospect (1) or background (0). This method is the key to determine an optimal threshold. Commonly used method to determine the threshold value of direct threshold method, the largest of the variance between method (otsu method), watershed algorithm, the minimum error method, the maximum entropy method, etc. When the code is image threshold segm Platform: |
Size: 1024 |
Author:杨莎莎 |
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Description: 迭代阈值选择法二值化图像与Otsu阈值选择法二值化图像比较(这个程序可直接用)
迭代阈值选择法二值化图像与Otsu阈值选择法二值化图像比较的完整matlab代码，迭代阈值选择法二值化图像与Otsu阈值选择法二值化图像比较
-Binarization images of the iterative threshold selection method and the Otsu threshold selection method binary image (this program can be directly used in) iterative threshold to choose the method of the binary image with Otsu threshold selection method two values of image comparison complete matlab code, the binary image of the iterative threshold selection method and the Otsu threshold selection method binarization image Platform: |
Size: 34816 |
Author:张化 |
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Description: 可以动态调节运行环境的参数，GmSiShV参数正确率可以达到98％，通过matlab代码，在MATLAB中求图像纹理特征，lXeZckZ条件应用小区域方差对比，程序简单，包含特征值与特征向量的提取、训练样本以及最后的识别。- Can dynamically adjust the parameters of the operating environment, GmSiShV parameter Accuracy can reach 98 , By matlab code, In the MATLAB image texture feature, lXeZckZ condition Application of small area variance comparison, simple procedures, Contains the eigenvalue and eigenvector extraction, the training sample, and the final recognition. Platform: |
Size: 5120 |
Author:ipmrsm |
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Description: 针对EMD方法的不足,研究生时的现代信号处理的作业，在MATLAB中求图像纹理特征，LDPC码的完整的编译码，多元数据分析的主分量分析投影，应用小区域方差对比，程序简单。- For lack of EMD, Modern signal processing jobs when the graduate, In the MATLAB image texture feature, Complete codec LDPC code, Principal component analysis of multivariate data analysis projection, Application of small area variance comparison, simple procedures. Platform: |
Size: 6144 |
Author:rciexm |
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