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spiht_ac_psnr
- 集成了快速算术编码的spiht图像编码算法,我增加了psnr的计算.-the rapid integration of spiht arithmetic coding algorithm for image coding, I increased psnr calculations.
psnr_absolutepath
- 计算图像峰值信噪比psnr的matlab源程序,相对路径转绝对路径的matlab程序-computing image PSNR psnr the Matlab source, relative to the absolute path of Matlab procedures
YUVPSNR
- 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
97wave222
- 一个97小波原代码,我们注意到如果把源程序的float 改为short后PSNR将有很大降低。 用提升的方法还是好些！-a wavelet 97 original code, We note that if the source of the float to short after PSNR will be much lower. The method used to upgrade or better!
PSNR-1
- Peak Signal to Noise Ratio
Arnold_Matlab_code
- 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 ％ outIm
mi-fil
- 图像中值滤波，利用中值滤波和低通滤波进行比较，分析PSNR，得出性能差别-image filtering, using median filter and a low-pass filter, PSNR analysis, the performance differences come
codefile
- 对图像进行二维离散小波变换, 变换级数大于等于3级, 并进行重构, 最后计算重构图像的峰值信噪比(PSNR).-images of two-dimensional discrete wavelet transform, transform Series is greater than or equal to 3, and reconstruction, Image Reconstruction final calculation of the peak signal-to-noise rati
waveletharrsoft
- 小波软阈值去噪soft harr.rar 将文件所在目录设为工作目录，然后打开wavlet.fig,在noise提示框下输入噪声强度，在0-0.1之间（不能为零）。然后点process按钮，就会显示实验结果，包括原图像，加噪图像，去噪图像的对比以及当前的psnr值。 wavlet.m是程序文件。-wavelet soft thresholding soft harr.rar file directory as the working directory. wavlet.fig then open
5961138972006928223402599535
- 小波软阈值去噪soft harr.rar 小波软阈值去噪soft harr.rar 将文件所在目录设为工作目录，然后打开wavlet.fig,在noise提示框下输入噪声强度，在0-0.1之间（不能为零）。然后点process按钮，就会显示实验结果，包括原图像，加噪图像，去噪图像的对比以及当前的psnr值。 wavlet.m是程序文件。-wavelet soft thresholding wavelet soft harr.rar soft thresholding soft harr.r ar
blindwatermark
- 数字水印程序，包括多分辨嵌入水印、提取水印程序，盲水印嵌入、提取程序，以及滤波攻击和JPEG攻击程序，PSNR和相似度计算公式（MATLAB）-digital watermarking procedures, including multiresolution embedded watermark, watermark extraction procedure, blind watermark embedding and extraction procedures, Filtering and
digitalimage1
- 图象的直方图处理及全尺度变换和各种性能指标的计算，如psnr,mse等-image histogram processing and full scale transformation and various performance indicators, such as psnr, mse etc.
images001
- 实现PSNR的MATLAB代码，功能是比较两图象的峰峰值。-achieve PSNR MATLAB code is more functional image of the two-peak.
cmp_yuv
- purpose computes PSNR between two raw YUV images compile gcc -g -o cmp_yuv cmp_yuv.c -lpgm -lpbm -lm -purpose computes PSNR between two raw YUV i mages compile gcc-g-o cmp_yuv cmp_yuv.c - lpgm - lpbm - lm
lsb
- 用matlab实现的基于LSB的数字水印算法。算法可以在BMP灰度图像中嵌入水印，水印信息为二值图像，并将其扩展到与原始图像同样大小，进行重复嵌入，提高鲁棒性。同时算法中给出了PSNR值以评价水印图像的效果，
image_comparaison
- This file include how to compute the PSNR between two images.
vi2
- 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
cox1_1101523995
- cox 的水印源码, 有多个檔，psnr, RGB to YIQ, YIQ to RGB
pnsr
- 求图像峰值信噪比PSNR的代码matlab版
imageprocessing6
- 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。