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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: 5884 |
Author: 段云 |
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Description: 计算原始图像和压缩图像之间average psnr的工具，做多媒体分析方面的人都需要。
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Size: 27690 |
Author: zhangjiessie |
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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: 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: 计算原始图像和压缩图像之间average psnr的工具，做多媒体分析方面的人都需要。-Calculation of the original image and compressed image among average psnr tools make multi-media analysis are required.
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Size: 27648 |
Author: zhangjiessie |
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Description: Digitized images have replaced analog images as photographs or x-rays in many different fields. In their raw form, digital images require a tremendous memory capacity for storage and large amount of bandwidth for transmission. In the last two decades, many researchers have been devoted to develop new techniques for image compression. More recently, wavelets have become a cutting edge technology for compressing the images by extracting only the visible elements. In this paper a wavelet based image decomposition algorithm has been implemented. Also, a nonuniform threshold technique based on average intensity values of pixels in each sub band has been proposed to remove the insignificant wavelet coefficients in the transformed image. Experimental results are obtained to compare the Daub2, Daub3 and Daub4 compactly supported (Daubechies) orthogonal wavelets on various test images using two important performance parameters – compression ratio and PSNR
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Size: 281600 |
Author: Sid |
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Description: 例举了中值滤波，均值滤波等方法，以及用MSE和PSNR来判断图像质量。-Cites median filtering, average filtering method and the use of MSE and PSNR to judge image quality.
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Size: 168960 |
Author: chenshuyun |
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Description: 本篇論文提出的整合式解交錯(Integrated De-interlacing)的演算法，可以有效提昇移
動區域的畫面，但是當移動估計不正確時，反而會使移動補償後的畫面變得很差，為了
改善這種情況，因此結合移動可適性解交錯的優點，並將空間圖場內插(Spatial
Interpolation)的方式改成ELA(Edge Line Average)來設計，經過電腦模擬的結果發現，不僅在視覺上提高畫面的解析度，在某些影像峰值訊號雜訊比(Peak Signal Noise Ratio ,
PSNR)也比線平均解交 錯(Line Average De-interlacing)多出好幾分貝的畫質增益。
此外，在整合式解交錯演算法中也增加影片偵測(Film Detection)和影像加強(Image
Enhancement)的演算法設計，在這樣演算法的架構下，透過影片偵測的演算法，我們可
真實地還原3:2 Pull Down 的影片格式，而不會有鋸齒狀(Saw-Toothed)的畫面出現，而影
像加強的演算法，則可以在解交錯後，經過影像的調整，使輸出畫面呈現不同的效果，
達到消費者的需求。-The main theme of this thesis is an integrated de-interlacing system, which incorporates
several known and improved techniques in a nice manner to produce good de-interlaced image
quality. We first develop an accurate motion detector that classifies image regions into
stationary, low-motion, and high-motion categories. The simple field merging method is
applied to the stationary regions. The edge line average interpolation method is applied to the
slow-motion regions. Finally, the motion-compensated interpolation is applied to the
high-motion regions. In addition, hierarchical motion estimation and motion vector smoothing
techniques are employed to enhance the quality of estimated motion vectors. Our computer
simulation shows that the subjective image quality is improved by using the proposed scheme.
Also, its PSNR measures are better than the conventional spatial or temporal interpolation
schemes.
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Size: 1171456 |
Author: robin |
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Description: 图像质量评价的一个重要的指标：平均结构相似度（MSSIM），比PSNR有更好的性能，并且计算简单。-Image quality assessment is an important indicator: Average structural similarity (MSSIM), better than the PSNR performance, and easy to compute.
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Size: 2048 |
Author: 田野 |
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Description: 这是从网上整理出来的图像融合评价标准，总共有13项性能指标。包括平均梯度，边缘强度，信息熵，灰度均值，标准差(均方差MSE)，均方根误差，峰值信噪比（psnr），空间频率(sf)，图像清晰度，互信息(mi)，结构相似性(ssim)，交叉熵(cross entropy)，相对标准差。大家一起交流吧~-This is sorted out from the online image fusion evaluation criteria, there are a total of 13 performance indicators. Including the average gradient, edge strength, information entropy, gray are
Value, standard deviation (mean square error MSE), root mean square error, peak signal to noise ratio (psnr), spatial frequency (sf), image clarity, mutual information (mi), structure
Similarity (ssim), cross-entropy (cross entropy), the relative standard deviation. Exchange it with everyone ~
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Size: 8192 |
Author: 海洋 |
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Description: Based on the idea to exploit the statistical dependencies
from both temporal and inter-view reference pictures for
motion compensated prediction, this paper presents a sys-
tematic evaluation of multi-view video coding with opti-
mized prediction structures. The compression method is
based on the multiple reference picture technique in the
H.264/AVC video coding standard. The advantages of hier-
archical B pictures for temporal prediction are combined
with inter-view prediction for different temporal hierarchy
levels, starting from simulcast coding with no inter-view
prediction up to full level inter-view prediction. When using
inter-view prediction at key picture temporal level average
gains of 1.4 dB PSNR are reported, while additionally using
inter-view prediction at non-key picture temporal levels av-
erage gains of 1.6 dB PSNR are reported. For some cases
gains of more than 3 dB, corresponding to bit rate savings of
up to 50 , are obtained.-Based on the idea to exploit the statistical dependencies
from both temporal and inter-view reference pictures for
motion compensated prediction, this paper presents a sys-
tematic evaluation of multi-view video coding with opti-
mized prediction structures. The compression method is
based on the multiple reference picture technique in the
H.264/AVC video coding standard. The advantages of hier-
archical B pictures for temporal prediction are combined
with inter-view prediction for different temporal hierarchy
levels, starting from simulcast coding with no inter-view
prediction up to full level inter-view prediction. When using
inter-view prediction at key picture temporal level average
gains of 1.4 dB PSNR are reported, while additionally using
inter-view prediction at non-key picture temporal levels av-
erage gains of 1.6 dB PSNR are reported. For some cases
gains of more than 3 dB, corresponding to bit rate savings of
up to 50 , are obtained.
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Size: 570368 |
Author: qwxie |
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Description: 1. 用 butterworth和理想低通滤波器对受椒盐噪声和高斯噪声污染的图像进行平滑处理, 计算平滑前后的PSNR(峰值信噪比).
2. 用 3x3邻域平均平滑和3x3中值滤波对受椒盐噪声和高斯噪声污染的图像进行平滑处理, 计算平滑前后的PSNR(峰值信噪比).
3. 用 roberts算子和Laplace算子对一图像进行锐化处理, 得到其边缘二值图像.-Salt and pepper noise and Gaussian noise images with butterworth and the ideal low-pass filter for smoothing, calculating smooth before and after the PSNR (peak signal to noise ratio).
(2) 3x3 neighborhood average in smoothing and 3x3 median filter images by the salt and pepper noise and Gaussian noise smoothing, computing smooth around the PSNR (peak signal to noise ratio).
Roberts operator and Laplace operator on an image sharpening, get the edge binary image.
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Size: 20480 |
Author: Xucheng |
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Description: 计算均方误差MSE信噪比SNR峰值信噪比PSNR绝对平均误差的matlab函数-Calculate the mean square error MSE, SNR is the peak signal to noise ratio PSNR absolute average error of Matlab functions
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Size: 4096 |
Author: 新雨 |
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Description: 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.
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Size: 131072 |
Author: like |
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Description: 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.
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Size: 1024 |
Author: 白元 |
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Description: 这是一种实现图像去隔行的处理函数，PSNR值比一般的函数都要高，很不错的-This is a realization of image processing Deinterlacing function, PSNR values are higher than the average function, very good
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Size: 2048 |
Author: 林 |
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Description: Generate the code for adding user defined Gaussian Noise (in dB) and
a. Filter out the same using average filter (generate function)
b. Determine the frequency plot
c. Determine error image, SNR and PSNR
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Size: 62464 |
Author: Rokibul Ahmed |
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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
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Size: 53248 |
Author: Rokibul Ahmed |
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Description: THIS msvc project gives average snr value between two .yuv files
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Size: 9070592 |
Author: mounika |
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Description: 给定视频，求输入视频指定帧的平均psnr。- A given video , please input video frame specified average PSNR .
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Size: 1024 |
Author: ll |
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