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Description: YUV视频序列PSNR的计算源码，对数字视频处理的朋友有一定的参考价值。支持YUV4:0:0, 4:1:1, 4:2:0, 4:2:2 and 4:4:4格式。
The function computes the psnr between two yuv videos. It considers the video signal as a whole and it doesn't average the psnr's of the single frames.
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Size: 1958 |
Author: blufly |
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Description: 两个常用的数字水印评价函数：信躁比比（SNR）和峰值信躁比（PSNR）-two commonly used digital watermarking evaluation function : Oh habibi letter (SNR) and peak letter impatient than (PSNR)
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Size: 1024 |
Author: 东东 |
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Description: 几个关于图像质量评价的函数。包括psnr峰值信噪比，均方误差rms，正则均方误差nmse等。可用于去噪图像和压缩图像的质量评价-several image quality evaluation of the function. Including psnr PSNR, mean square error rms, it is mean-square error nmse other. Images can be used for de-noising and compression of image quality evaluation
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Size: 2048 |
Author: 王晓甜 |
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Description: PSNR 用来计算峰值信噪比的函数。可以输入两个yuv文件得出平均值-PSNR peak signal-to-noise ratio used to calculate the function. 2 can import documents obtained average yuv
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Size: 5120 |
Author: 段云 |
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Description: Arnold图像置乱Matlab代码
％％ -------------------------------------------------------------------- ％％
％ Function: Arnold图像置乱
％ Arnold: x =(x+y) mod N, y =(x+2y) mod N
％ 变换周期(N,M): (128,96),(256,192),(512,384)
％ Argument: dPSNR: 置乱后PSNR
％ outImg: 置乱后输出图像
％ inImg: 输入图像
％ iTimes: 置乱次数
％ Version: 1.01.20070409
％％ -------------------------------------------------------------------- -Arnold image scrambling Matlab code----------%%---------------------------- %%% Function : Arnold image scrambling% Arnold : x = (x y) mod N, y = (x 2y) mod N% transform cycle (N, M) : (128,96), (256,192), (512,384)% Argument : dPSNR : Scrambling after PSNR% outImg : Scrambling% of the output image inImg : input image% iTimes : Scrambling frequency% Version : 1.01.20070409-------------------------%%----------------------------------------
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Size: 1024 |
Author: kuhasu |
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Description: This program compress and recostruct using wavelets. We can select level of decomposition(here maximum 4 levels are given) of images using selected wavelet.
For eg:-wavelets can be haar, db1, db2,dmey...............
Decomposition can be viewed in figure.
(Please note that select 256X256 image for better result.)
Then compression can performed,
PERFL2 give compression score.
Then reconstruction can be performed.
Each decompsition we can choose different threshold values.
For each threshold value we can calculate mse,psnr,pq(picture quality),
bit ratio etc. To get pq install pqs function . -This program compress and recostruct using wavelets. We can select level of decomposition (here maximum 4 levels are given) of images using selected wavelet.For eg:-wavelets can be haar, db1, db2, dmey ........ ....... Decomposition can be viewed in figure. (Please note that select 256X256 image for better result.) Then compression can performed, PERFL2 give compression score.Then reconstruction can be performed.Each decompsition we can choose different threshold values . For each threshold value we can calculate mse, psnr, pq (picture quality), bit ratio etc. To get pq install pqs function.
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Size: 3072 |
Author: 陈语恬 |
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Description: 1．选择一幅图像，对该图像进行DCT块操作（将图像分成8×8小块，对每个小块进行DCT变换）。
2.利用屏蔽矩阵对DCT系数进行区域选择，然后进行逆变换（IDCT），合成原图像，计算合成图像的PSNR。
3.选择一小波函数，对一幅图像进行分解，显示各变换系数，观察其规律，并进行小波逆变换，合成原图像。
-1. Select an image, the image DCT block operations (the image is divided into 8 × 8 small pieces of each small piece for DCT transform). 2. The use of shielding on the DCT coefficient matrix of regional choices, and then inverse transform (IDCT), synthesis of the original image, calculating the synthetic image PSNR. 3. To select a wavelet function, decomposition of an image to show the transform coefficients, to observe its laws, and inverse wavelet transform, the original synthetic image.
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Size: 2048 |
Author: syq |
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Description: 这个是一个获取两个图像相似度的函数，对于图像处理和数字水印方面的编程者来说，会经常去计算两个图像的psnr值，从而来确定图像的相似度，使用matlab可以很方便的计算两个图像的psnr，但是由于matlab专业性很强，而且有没有版权保护，所以对于大批的使用VC语言的这方面的编程者，由于要经常使用而显得很麻烦。
通过调用get_psnr函数可以很方便的就得到两个图像的相似度。
-This is a similarity to obtain a function of two images for image processing and programming aspects of digital watermarking are concerned, will keep the two images to calculate the PSNR value, thereby to determine the similarity of images, the use of matlab can be easily the calculation of the two images psnr, but because matlab highly professional, and has no copyright protection, and therefore the use of a large number of VC language programming in this area, and due to frequent use, there appears to be very troublesome. Get_psnr by calling the function can be easily obtained from the two images on the similarity.
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Size: 1024 |
Author: 莫雨 |
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Description: 函数功能：本函数将完成对输入图像的峰值信噪比计算-Function: This function will be completed on the input image of the peak signal to noise ratio calculation
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Size: 1024 |
Author: rachel |
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Description: 用MATLAB读取一幅图像，并且计算其图像信噪比-Using MATLAB to read an image and calculate the image SNR
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Size: 1024 |
Author: 张龙 |
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Description: 一个计算图像或者是视频Psnr的函数以及D-thr function of calculating Psnr and its dll
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Size: 7501824 |
Author: lee |
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Description: Function that calculate the PSNR and WSNR of two imagines
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Size: 1024 |
Author: Diego |
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Description: 两个图像质量评价函数，psnr峰值信噪比，正则均方误差nmse，能可用于去噪图像和压缩图像的质量评价，很有用啊。-Two image quality evaluation of the function. Including psnr PSNR, it is mean-square error nmse other. Images can be used for de-noising and compression of image quality evaluation.
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Size: 1024 |
Author: sanmu |
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Description: 计算两幅图像峰值信噪比的matlab函数-Calculate PSNR of two images of the matlab function
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Size: 1024 |
Author: yaoheng |
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Description: This the function used to find the PSNR value of the image.-This is the function used to find the PSNR value of the image.
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Size: 1024 |
Author: Veerendra C Angadi |
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Description: 计算图像峰值信噪比的函数PSNR。这是图像处理中必备的一个性能指标，非常好用。附有LENA图像。-Calculate a function of PSNR of the image peak signal to noise ratio. This is essential in image processing performance, very easy to use. Accompanied by LENA image.
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Size: 168960 |
Author: 石笑天 |
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Description: function PSNR2 = psnr(I,I_iter)
计算峰值信噪比
I : 原始信号
I_iter : 加噪信号-function PSNR2 = psnr (I, I_iter) calculate the peak signal to noise ratio I: the original signal I_iter: adding noise signal
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Size: 2048 |
Author: alison |
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Description: 峰值信噪比的函数，用来衡量视频的压缩质量-Function of the peak signal-to-noise ratio, used to measure the video compression quality
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Size: 2048 |
Author: 李林伟 |
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Description: 几个关于图像质量评价的函数。包括psnr峰值信噪比，均方误差rms，正则均方误差nmse等。可用于去噪图像和压缩图像的质量评价-Several image quality evaluation of the function. Including psnr PSNR, mean square error rms, it is mean-square error nmse other. Can be used for image denoising and compression of image quality evaluation
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Size: 2048 |
Author: king |
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Description: 用于计算图像的psnr，以函数的方式存在，可以自由调用-Psnr for computing the image, the function exists in the way, they can call
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Size: 1065984 |
Author: 罗先生 |
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