Description: 这是一个实现图象加权信噪比算法，他能实现图象失真程度的衡量-This is a weighted signal-to-noise ratio images algorithm, he is able to achieve levels of image distortion measure Platform: |
Size: 3072 |
Author:杨永 |
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Description: 此程序用于返回图象变换前后的信噪比,只需简单输入图象名,即可返回结果-This procedure for the return of the signal to noise ratio images before and after transformation, you simply enter the image name, to return to the results of Platform: |
Size: 2048 |
Author:过容 |
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Description: 一个计算2副图像之间的峰值信噪比（PSNR）的matlab程序。-A calculation between two images of the peak signal to noise ratio (PSNR) of the matlab program. Platform: |
Size: 30720 |
Author:chenkaizhi |
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Description: 计算两幅图像的SNR信噪比的源代码MATLAB版-Calculation of two images PSNR peak signal to noise ratio of the source code version of MATLAB Platform: |
Size: 3072 |
Author:宁菲菲 |
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Description: 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 Platform: |
Size: 1024 |
Author:leiyu |
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Description: 对不同噪声强度的加噪图像，用粒子群优化算法优化结构元素，找到最优结构元素，对图像进行去噪操作，使恢复的图像达到最大峰值信噪比-Noise intensity for different images with noise, using particle swarm optimization algorithm to optimize the structure elements, find the optimal structure element, the image de-noising operation to restore the image to a peak signal to noise ratio Platform: |
Size: 130048 |
Author:吴琳珠 |
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Description: 求解两幅压缩前后图片A和B之间的峰值信噪比-To find the PSNR (peak signal-to-noise ratio) between two intensity images A and B, each having values in the interval[0,1]. The answer is in decibels (dB). Platform: |
Size: 1024 |
Author:zhaocong |
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Description: This package contains a beta MATLAB version of the VSNR function from
the paper "VSNR: A Wavelet-Based Visual Signal-to-Noise Ratio for
Natural Images," D. M. Chandler and S. S. Hemami, published in the IEEE
Transactions on Image Processing, September 2007. Platform: |
Size: 641024 |
Author:ahmed seghir |
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Description: 用matlab编程工具，编写具有操作界面的应用程序，通过菜单、对话框，选项框等界面控制，对算法进行演示。需要在应用系统中实现的算法及功能包括：
1、图像增强算法
（1）灰度线形变换：亮度及对比度可以调节（通过控制参数的改变，能够实时预览变化结果）；
（2）直方图均衡：可在界面上对比均衡前后的效果。
2、图像变换算法
（3）对一幅彩色图像进行DCT变换和反变换，对比结果和原图；
（4）仅保留左上角16X16的DCT系数，进行反变换，计算结果图的信噪比SNR。
3、图像分割算法
（5）采用最优阈值算法对灰度图像进行分割；
（6）用Canny算法对灰度图像进行边缘检测；
（7）用hough变换，检测边缘图像中的直线，并用不同颜色将检测出的直线叠加显示到原图像上。
-Preparation of a user interface with Matlab programming tools, applications, menus, dialog boxes, option boxes and other interface control, the algorithm demo. Algorithms and functions that need to be achieved in the application system including: 1, the image enhancement algorithm (1) gray linear transformation: the brightness and contrast can be adjusted (by controlling the change of the parameters, it is possible to real-time preview changes result) (2) Histogram equalization : contrast before and after equalization effect in the interface. 2, an image transformation algorithm (3) for a color image DCT transform and inverse transform, comparing the results and the original (4) to retain only the upper left corner of 16x16 DCT coefficient, the inverse transform, the signal-to-noise ratio SNR calculation results of FIG. . 3, image segmentation algorithm (5) The optimal threshold algorithm to gray-scale image segmentation (6) Canny algorithm for edge detection of gray-scale images ( Platform: |
Size: 822272 |
Author:张涛 |
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Description: 小波变换在图像融合中的应用求出图片的均值，信噪比，空间频率，峰值信噪比等-The application of wavelet transform in image fusion, including to the application of wavelet transform in image fusion for the image of the mean, the signal-to-noise ratio, spatial frequency, the average peak signal-to-noise ratio and other images, Platform: |
Size: 35840 |
Author:李杰 |
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Description: This function displays the PSNR (peak signal-to-noise ratio) between two images. The answer is in decibels (dB).
PSNR is very common in image processing. A sample use is in the comparison between an original image and a coded/decoded image. Typical quoted PSNR figures are in the range +25 to +35dB.
The syntax for this file is PSNR(A,B), where A and B are MATLAB Intensity Images, with matrix-elements in the interval [0,1]
The function can be adapted for images with 256 gray levels. Platform: |
Size: 1024 |
Author:yokiqust
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Search - signal to noise ratio for images in matlab