Search - psnr

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【Special Effects】 noised-vedio DL : 0: 本段代码是利用图片形成视频并利用对每帧图像加噪声来形成噪声视频，可用于视频PSNR检测-The section of code is the use of picture form video and use of each frame plus noise noise video detection for video PSNR
Update : 2024-05-17 Size : 1024 Publisher : 周明达
【Special Effects】 watermarking-image-aimage DL : 0: 在Matlab环境下实现图片的水印嵌入，利用离散小波变换，较好的实现了应有的功能，并且通过计算PSNR值很好的验证了水印算法的不可见性和鲁棒性。-Watermark image is realized in Matlab environment, using the discrete wavelet transform, achieve a better functions, and are in good agreement with the watermark imperceptibility and robustness by calculating the value of PSNR.
Update : 2024-05-17 Size : 622592 Publisher : 石海凤
【Picture Viewer】 hkj DL : 0: 对图片加噪声后进行soft threshold 处理,提高PSNR-Picture plus noise soft threshold processing, and improve the PSNR
Update : 2024-05-17 Size : 8359936 Publisher : sxx
【Software Engineering】 hw1Quantization DL : 0: 图像量化，计算PSNR.图像量化，计算PSNR-calculate the PSNR of a picture
Update : 2024-05-17 Size : 1024 Publisher : Zhao
【Wavelet】 DIP_wavelet-transform DL : 0: 利用二维Mallat小波分解原理，对一幅标准图像进行3级分解，获取小波高/低频系数，并分别用低频分量LL1、LL2、LL3小波系数进行图像重建，分别计算这三种情况和原始图像比较地PSNR-2D Mallat wavelet decomposition principle, a standard image 3 decomposition, to obtain of Wavelet high/low frequency coefficients, and the low-frequency component LL1, LL2, LL3 wavelet coefficients of image reconstruction, these three cases were calculated and the original image.Compare PSNR
Update : 2024-05-17 Size : 58368 Publisher : like
【Special Effects】 Wiener_image-restoration DL : 0: 将一幅的灰度图像用平均滤波器进行模糊，分别再加上一定的高斯噪声和均匀噪声，然后，用设计的滤波器进行对上述两幅图像进行复原，并计算两幅图像复原前后的PSNR。-A gray-scale image with the average filter fuzzy, respectively, plus a Gaussian noise and uniform noise, and then, with filters designed to recover the two images, and calculate the two images before and after the recoveryPSNR.
Update : 2024-05-17 Size : 131072 Publisher : like
【Special Effects】 6image-recover DL : 0: 将一幅M×N的灰度图像用3×3平均滤波器进行模糊，分别再加上一定的高斯噪声和均匀噪声。然后，设计一个维纳滤波器对这两幅图像进行复原，分别计算这两幅图像复原前后的PSNR。-Gray-scale image of a MN 33 average filter is vague, respectively, plus a Gaussian noise and uniform noise. Then, design a Wiener filter to recover these two images, the two images before and after the recovery of PSNR were calculated.
Update : 2024-05-17 Size : 1024 Publisher : 白元
【Special Effects】 A-Watermarking-Algorithm(MATLAB)-- DL : 1: 盲水印提取时不需要参考原始载体图像,在信息隐藏、版权保护等方面具有更广泛的应用前景。提出的盲水印算法在分块离散余弦变换(DCT)和离散小波变换(DWT)的基础上,利用关系双方DCT系数和DWT系数在受到攻击时具有相同变化趋势的特点,采用关系嵌入和量化嵌入的自适应选择嵌入策略,较大幅度地提高了盲水印提取的鲁棒性。同时在量化嵌入中采用抖动调制,实现了水印透明性和鲁棒性调节的便捷性。大量仿真实验结果表明该算法对噪声干扰、低通滤波、JPEG压缩、对比度增强等攻击有很好的鲁棒性和透明性。关键词数字水印盲水印关系嵌入量化嵌入离散余弦变换离散小波变换按这篇文章的算法，自己编的matlab,没有攻击时水印提取率为1，加水印后图像PSNR有45+，。有攻击后提取率也有0.9+。-Blind watermark extraction can be fulfilled without referring to the original host image. Therefore it hasmuch prospective applications in the fields of information hiding and copyright protection. Based on blocking Discrete Cosine Transform (DCT) and blocking DiscreteWaveletTransform (DWT), the proposed blind watermarking algorithm uses an embedding strategy of adaptively selecting either relationship embedding or quantization embedding. The relationship em- bedding comes from the observation thatboth themagnitudes of coefficients concerned in the relationship usually have thesame change trend when the image is attacked. This strategy remarkably improves the robustness ofwatermark extraction.In addition, dithermodulation is used in quantization embedding, bywhich the tradeoff between transparency and robus-tness ofwatermarking can be easily adjusted. Simulation results show that the algorithm is fairly robust against the attacks such as noise, filtering, compression, and contrast
Update : 2024-05-17 Size : 758784 Publisher : CXF
【Wavelet】 Wavelet-denoising DL : 0: 将小波技术应用于图像去噪，利用复数改进后输出去噪后的MSE和PSNR值-Wavelet denoising was applied to image processing, use a plural improvements after the output wavelet denoising of MSE and PSNR
Update : 2024-05-17 Size : 1024 Publisher : zjy
【Graph program】数字图像质量评估 DL : 0: 数字图像质量评估SSIM ，一种衡量两幅图像相似度的新指标，其值越大越好，最大为1，经常用到图像处理中，特别在图像去噪处理中在图像相似度评价上全面超越SNR（signal to noise ratio）和PSNR（peak signal to noise ratio）.
Update : 2013-04-16 Size : 15501 Publisher : unclewang_@126.com
【Special Effects】 PSNR DL : 0: 完成对彩色图像的灰阶变化和噪声滤除处理，并通过数学计算完成对ISNR的求解。-Complete color image gray-scale changes and filter out noise, and completed ISNR solving through mathematical calculations.
Update : 2024-05-17 Size : 1024 Publisher : momohyx
【matlab】 lee-filter DL : 0: This code consist of various filters and their comparison, The performance metrics are determined using PSNR value, SSIM value.
Update : 2024-05-17 Size : 205824 Publisher : shalo
【Picture Viewer】 data DL : 0: it is test image. it is useful for testing image PSNR or extracing feature.
Update : 2024-05-17 Size : 1936384 Publisher : esther
【matlab】 iwssim_iwpsnr DL : 0: This code calculate the PSNR between the original and the distored image, and give the value of this PSNR.
Update : 2024-05-17 Size : 4096 Publisher : Guettari
【matlab】 ImageQualityMeasures DL : 0: it contains image quality metrics PSNR , SSIM, SC, Avg diff etc.,
Update : 2024-05-17 Size : 917504 Publisher : rama
【Special Effects】 PSNR-(2) DL : 0: 代码图像以及matlab语言中函数的调用，保证运行结果-matlab
Update : 2024-05-17 Size : 11264 Publisher : 李华
【Special Effects】 pic1 DL : 0: matlab 读入某一图像，对图像灰度化的图形进行不同阶数的量化比较，计算psnr-matlab read a certain image, gray graphics quantitative comparison of the different orders, calculate psnr
Update : 2024-05-17 Size : 1024 Publisher : Xaptx
【2D Graphic】 zhongzhilvbo DL : 0: 分别在2幅灰度图像中加入一定量的高斯噪声和椒盐噪声，噪声强度自定。然后采用3×3的均值滤波器和3×3中值滤波器分别对噪声图像进行处理，给出两种处理方法的峰值信噪比(PSNR)；仿效“中值滤波”的方法，对原图像分别进行“极大值滤波”和“极小值滤波”，对所形成的图像给出说明。-Two gray-scale images a certain amount of Gaussian noise and salt and pepper noise , noise intensity since .
Update : 2024-05-17 Size : 137216 Publisher : 张聪聪
【Wavelet】 wavelet DL : 0: 对某一标准图像进行二维Mallat小波的3级分解，获得小波高/低频系数，分别用低频分量LL1、LL2、LL3的小波系数进行图像重建，分别计算这三种情况和原始图像比较的PSNR。-A standard image 3 2D Mallat wavelet decomposition, wavelet high/low frequency coefficients , respectively Low frequency component LL1 , LL2, LL3 wavelet coefficients for image reconstruction, respectively, to calculate the three And compared to the original image PSNR.
Update : 2024-05-17 Size : 45056 Publisher : 张聪聪
【Special Effects】 psnr_mse DL : 0: 自动计算一幅图像的峰值信噪比PSNR和均方误差MSE-Automatically calculate the psnr and mse of an image.
Update : 2024-05-17 Size : 60416 Publisher : 玄林江

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