Description: 提出了一种基于小波域的图像数字水印算法·该算法将相互正交的两种水印(鲁棒水印和参考
水印)同时添加到经过DWT后的载体图像小波系数中,然后用小波反变换得到添加了水印的图像·用提取出
的参考水印来估计图像所受到的攻击,由于提取出的鲁棒水印所受的攻击与参考水印受到的攻击一样,因此
可以估计出原始的鲁棒水印·通过对嵌入水印的图像进行加入噪声、滤波、压缩以及裁剪等大量图像处理等试
验,均能正确检测出水印,表明该算法具有很好的感知效果和鲁棒性
-A wavelet-based image digital watermarking algorithm that the algorithm will be mutually orthogonal two watermarks (watermark robust watermarking and reference) at the same time added to the carrier after image after DWT wavelet coefficients, and then using wavelet transform has been Add a watermark image to use to extract a reference to estimate the watermark image by the attacks, as a result of the robust watermark extracted suffered attacks and the reference watermark by the same attack, it can be estimated through the original Robust Watermarking of the embedded watermark image by adding noise, filtering, compression and cutting, such as a large number of image processing such as testing, can correctly detect the watermark, show that the algorithm has good performance and robustness of perception Platform: |
Size: 190464 |
Author:李倩 |
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Description: MATLAB给图像添加高斯、椒盐、加性及乘性噪声(噪声生成)源代码Free Source Code for Adds diferent types of noise to an image-MATLAB add to the image Gaussian, salt and pepper, additive and multiplicative noise (noise generated) source code Free Source Code for Adds diferent types of noise to an image Platform: |
Size: 2048 |
Author:余永松 |
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Description: 这个程序用于在图片中增加各种噪声，如高斯椒盐噪声, 加性或乘性等多种混合噪声，用于其它程序的测试。-This procedure is used to increase the variety of picture noise, such as salt and pepper Gaussian noise, additive or multiplicative noise, such as a mixture for testing other programs. Platform: |
Size: 8192 |
Author:xlz |
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Description: MATLAB 给图像添加各种噪声：如椒盐噪声，高斯噪声、乘性噪声等等。-MATLAB add all kinds of noise to the image: If salt and pepper noise, Gaussian noise, multiplicative noise and so on. Platform: |
Size: 1024 |
Author:张娜 |
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Description: 空间滤波图像复原，使用matlab实现，对位图文件进行加噪后，处理-Spatial filtering image restoration, the use of matlab implementation of bitmap file to add noise, the treatment Platform: |
Size: 377856 |
Author:Adams |
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Description: 图像去噪的标准是什么，如何加入噪声，这些对初学者来说无异是很有帮助的。-Image Denoising What is the criteria for how to add noise, the same as those of beginners are very helpful. Platform: |
Size: 1024 |
Author:郭健 |
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Description: 基于MATLAB-GUI图形界面的数字图像处理软件 本系统设计基于GUI图形界面，用matlab语言编写代码，实现功能包括图象的读取、存储、显示、直方图均衡化、阈值化、小波分解、小波重构、加噪、去噪、平滑、锐化、边缘检测、图像分割等-MATLAB-GUI graphical user interface based on digital image processing software of the system design is based on GUI graphical interface, using matlab language to write code to achieve functionality, including image reading, storage, display, histogram equalization, thresholding, wavelet decomposition, wavelet reconstruction, add noise, denoising, smoothing, sharpening, edge detection, image segmentation, etc. Platform: |
Size: 2992128 |
Author:chengmengli |
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Description: Briefly with the following code I will try to embed the MSB of the baboon image into the picture of Lena by exploiting the LSB embedding technique. We will try also to add an WGN (white gaussian noise) to the image then after these operations we will write to file the results. The code is heavily commented, so I think that further explanations are not needed.Recover Platform: |
Size: 1024 |
Author:gege |
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Description: MATLAB® is a high-level technical computing language and interactive environment for algorithm development, data visualization, data analysis, and numeric computation. Using the MATLAB product, you can solve technical computing problems faster than with traditional programming languages, such as C, C++, and Fortran.You can use MATLAB in a wide range of applications, including signal and image processing, communications, control design, test and measurement, financial modeling and analysis, and computational biology. Add-on toolboxes (collections of special-purpose MATLAB functions, available separately) extend the MATLAB environment to solve particular classes of problems in these application areas.MATLAB provides a number of features for documenting and sharing your work. You can integrate your MATLAB code with other languages and applications, and distribute your MATLAB algorithms and applications.-MATLAB® is a high-level technical computing language and interactive environment for algorithm development, data visualization, data analysis, and numeric computation. Using the MATLAB product, you can solve technical computing problems faster than with traditional programming languages, such as C, C++, and Fortran.You can use MATLAB in a wide range of applications, including signal and image processing, communications, control design, test and measurement, financial modeling and analysis, and computational biology. Add-on toolboxes (collections of special-purpose MATLAB functions, available separately) extend the MATLAB environment to solve particular classes of problems in these application areas.MATLAB provides a number of features for documenting and sharing your work. You can integrate your MATLAB code with other languages and applications, and distribute your MATLAB algorithms and applications. Platform: |
Size: 27648 |
Author:maruni |
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Description: MATLAB® is a high-level technical computing language and interactive environment for algorithm development, data visualization, data analysis, and numeric computation. Using the MATLAB product, you can solve technical computing problems faster than with traditional programming languages, such as C, C++, and Fortran.You can use MATLAB in a wide range of applications, including signal and image processing, communications, control design, test and measurement, financial modeling and analysis, and computational biology. Add-on toolboxes (collections of special-purpose MATLAB functions, available separately) extend the MATLAB environment to solve particular classes of problems in these application areas.MATLAB provides a number of features for documenting and sharing your work. You can integrate your MATLAB code with other languages and applications, and distribute your MATLAB algorithms and applications.-MATLAB® is a high-level technical computing language and interactive environment for algorithm development, data visualization, data analysis, and numeric computation. Using the MATLAB product, you can solve technical computing problems faster than with traditional programming languages, such as C, C++, and Fortran.You can use MATLAB in a wide range of applications, including signal and image processing, communications, control design, test and measurement, financial modeling and analysis, and computational biology. Add-on toolboxes (collections of special-purpose MATLAB functions, available separately) extend the MATLAB environment to solve particular classes of problems in these application areas.MATLAB provides a number of features for documenting and sharing your work. You can integrate your MATLAB code with other languages and applications, and distribute your MATLAB algorithms and applications. Platform: |
Size: 38912 |
Author:maruni |
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Description: 图像处理作业 用matlab显示直方图 累积分布函数 加高斯噪声 再用平滑降噪 都是自己编的程序-Given the test image "Lenna" 256*256 with 256 gray levels, do the following:
1) Using MATLAB display the test image.
2) Display the intensity histogram of the test image.
3) Using the image histogram and cumulative distribution function, locate the intensity value such that 20 of the output pixels are saturated to 0.
4) Add Gaussian noise(mean 2, variance 4) to the test image and display the noisy image.
5) Apply smoothing and median filtering to the noisy image and display the results.
Platform: |
Size: 241664 |
Author:ouyang |
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Description: 对图像进行添加噪声处理，并计算相应的峰值信噪比的matlab程序。-A matlab program: add noise to an image and calculate correspondly the Peak Signal to Noise Ratio . Platform: |
Size: 60416 |
Author:张青 |
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Description: Write MATLAB code that will do the following.
(a) Add Gaussian, Salt and Pepper and Speckle noise to image.
(b) Perform median filtering to remove noise and determine SNR and PSNR value.
(c) Perform average or low pass filtering to remove noise and determine SNR and PSNR value. (use 3×3, 5×5 and 9×9 window and discuss on the filtered image)
(d) Perform high pass filtering to detect edges.
(e) Perform High Boost filtering
Platform: |
Size: 53248 |
Author:Rokibul Ahmed |
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Description: matlab code
Proposed Algorithm
1. Consider the image to be resized to N x N (Original image I having N value of pixel)
2. Image is to be changed into gray and double for 2-D image.
3. Add noise to image using gaussian white filter.
4. Image de-noising using Isotropic Total variation filter can provide much better result than the LLSURE filter.
Where is the adjoint operator of with respect to standard inner product.
5. The corresponding Euler-Lagrange equation
6. Calculate Mean Square Error and Peak Signal Noise Ratio for de-noise image.
-matlab code
Proposed Algorithm
1. Consider the image to be resized to N x N (Original image I having N value of pixel)
2. Image is to be changed into gray and double for 2-D image.
3. Add noise to image using gaussian white filter.
4. Image de-noising using Isotropic Total variation filter can provide much better result than the LLSURE filter.
Where is the adjoint operator of with respect to standard inner product.
5. The corresponding Euler-Lagrange equation
6. Calculate Mean Square Error and Peak Signal Noise Ratio for de-noise image.
Platform: |
Size: 741376 |
Author:sandeep |
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Description: Matlab中实现SSIM算法，选取合适图片添加不同噪声，然后用三种去噪算法分别对添加噪声后的图片进行去噪，用SSIM图像相似度指标分析不同去噪算法对不同噪声的去除效果。(SSIM algorithm to achieve the Matlab, select the appropriate image with different noise, and then used to add noise after image denoising respectively three denoising algorithms, the effect of different denoising algorithm to remove noise of different SSIM image similarity index analysis.) Platform: |
Size: 3072 |
Author:李明222
|
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Description: ①线性灰度变换（函数形式）
② 编程计算图像的直方图，并与函数imhist比较
③ 执行直方图均衡化和规定化histeq
④ 给图像添加噪声
⑤ 执行均值滤波、高斯滤波和中值滤波
⑥ 执行拉普拉斯滤波
⑦ 执行低通滤波和高通滤波(Linear gray scale transformation (function form)
The histogram of the image is calculated and compared with the function imhist
Performing histogram equalization and normalized histeq
Add noise to the image
Performing mean filter, Gauss filter and median filter
Execution of Laplasse filter
Performing low pass filtering and high pass filtering) Platform: |
Size: 437248 |
Author:536536536 |
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