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tianjia
- 如何在图像中加入某一固定snr的噪声？分类:matlab与图像处理 在利用matlab做一些自己算法的抗噪分析中，常常会遇到这个问题，matlab中的加噪函数是imnoise，里面的参数是噪声的均值，方差（高斯噪声）或者是感染概率（椒盐噪声），参数不能是snr值，但是很多国外的文章的噪声分析中都是用snr值来衡量加入噪声的程度的-how the image to a fixed snr noise? Categories : Matlab and image processing using
contourlet_toolbox
- contourlet工具箱，包括五株采样、方向滤波器、塔型滤波器及SNR等函数，可直接对图像进行基于contourlet的分解和重构-contourlet toolbox, including the five samples, the direction of filters, tower-type filter and the SNR, such as function, can be directly based on image decomposition and reconstruct
ImageCoding
- 可以实现图像霍夫曼编码,香家费诺编码,算术编码,游程编码,位平面编码,预测编码,在编码过程中会显示被压缩图像的各个参数(压缩比,码长,信噪比等),并有图像恢复功能.-Huffman code can achieve images, Fenno House Shannon coding, arithmetic coding, run-length coding, bit plane coding, predictive coding, in the process of encoding comp
PSNR
- 这个程序可以实现两幅图像信噪比的计算，尤其是对于图像压缩，可以评判压缩的质量-This process can be achieved two SNR calculation, especially for image compression, you can judge the quality of compressed
dtect-small-target
- An Efficient Method of Small Targets Detection in Low SNR. infrared image .single fly target-An Efficient Method of Small Targets Detection in Low SNR. infrared image .single fly target
MRI_Area_Slectionz-and-SNR
- 对磁共振图像进行边缘区域和图像区域的选取，并分别对两者进行均值和标准差的计算，最后得出信噪比。-For magnetic resonance images, how can we select the area of the air and the area of the image,then calculate the mean value and standard deviation value of both. Finally ,we can obtain the conclusion
sc3
- 通过观察图像lena_noise.bmp可以看到，该图像主要包含高斯噪声、椒盐噪声等。 通过查阅资料可知，维纳滤波可以很好的滤除高斯噪声，而中值滤波对于椒盐噪声的滤出效果优异，因此本次采用维纳+中值的滤波方式进行图像的去噪处理。 图像常用评价方法有：信噪比、相关系数、清晰度。信噪比较为常用；相关系数 由于滤波会使原图像失去某些细节，因此这种评价方式为参考性指标而非绝对评判标准；清晰度 为图像子块的方差 综合考虑采用图像的峰值信噪比(PSNR)作为评价去噪效果指标(自编PSNR.
dct-quanlity-snr
- 对一幅图像进行不同量化水平的DCT变换，可以应用于不同分块大小下的DCT变换测试。-On an image to quantify the level of different DCT transform, can be applied to different sub-block size DCT transform under test.
SNR
- 本次实验中对视频的I帧和P帧进行SNR可伸缩编码，可分级的级数为2。在I帧编码时，首先采用较大的量化矩阵进行量化，完成编码后的图像作为基本层-The experiments on the video frames and the I to P frame SNR scalable coding, can be graded series of 2. In the I-frame coding, the first to quantify the larger matrix to quantify
SNR
- 本次实验中对视频的I帧和P帧进行SNR可伸缩编码，可分级的级数为2。在I帧编码时，首先采用较大的量化矩阵进行量化，完成编码后的图像作为基本层-The experiments on the video frames and the I to P frame SNR scalable coding, can be graded series of 2. In the I-frame coding, the first to quantify the larger matrix to quantify
zhibiao
- 图像处理的评价指标，有PSNR RMSE SNR等，可以提供初学者学习-Evaluation of image processing, with PSNR RMSE SNR, can provide beginners
Image-Denoising-by-Adaptive-Kernel-Regression
- This paper introduces an extremely robust adaptive denoising filter in the spatial domain. The filter is based on non-parametric statistical estimation methods, and in particular generalizes an adaptive method proposed earlier by Fukunaga [1]
Image-processing-for-low-SNR
- 在图像处理中主要研究信噪比比较低时，对图像如何进行处理-The C++ implementation is supported on Unix-type platforms, including Linux, SunOS and MacOS. The installation requires g++ (version 3.2 or higher), and Matlab’s mex compiler (version 13 or higher) if you want to install
lunfang
- 中介真值程度度量，基于中介真值程度度量的图像分割最大信噪比的独立分量分析算法，使用拉亚普诺夫指数的公式。- The true extent of the value of the intermediary measure, measure the true extent of the agency based on the value of image segmentation SNR largest independent component analysis algorithm, Raya
teigan
- Matlab实现界面友好，中介真值程度度量，基于中介真值程度度量的图像分割最大信噪比的独立分量分析算法。- Matlab to achieve user-friendly, The true extent of the value of the intermediary measure, measure the true extent of the agency based on the value of image segmentation SNR largest independent co
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- 基于最大累积剩余熵的红外图像分割 经典阈值化分割方法是常用的图像分割方法之一,但对于低对比度,低信噪比的红外图像分割效果 不理想,将累积剩余熵运用于红外图像分割,即寻求使得累积剩余熵最大的灰度值作为分割阈值,实验结果表明：基于最大累积剩余熵的图像分割方法是一种有效的 红外图像分割方法,比起经典的阈值分割方法,分割红外图像的效果要好 -Segmentation based on maximum cumulative residual entropy classic infrared
7
- 基于最大累积剩余熵的红外图像分割 经典阈值化分割方法是常用的图像分割方法之一,但对于低对比度,低信噪比的红外图像分割效果 不理想,将累积剩余熵运用于红外图像分割,即寻求使得累积剩余熵最大的灰度值作为分割阈值,实验结果表明：基于最大累积剩余熵的图像分割方法是一种有效的 红外图像分割方法,比起经典的阈值分割方法,分割红外图像的效果要好 -Segmentation based on maximum cumulative residual entropy classic infrared
VFM_ISAR
- 实现V调频信号ISAR成像一维距离像和二维图像，同时可改变注释中代码调整仿真成像的对象以及成像过程中信噪比等问题。(V frequency modulation signal, ISAR imaging, one-dimensional range image and two-dimensional image can be changed, while the code in annotation can be adjusted, the object of simulation imagin
WPSNR
- 计算信噪比的测试程序代码，利用对比敏感度函数（CSF）测量失真图像的空间频率。(Calculation of the test code SNR, the contrast sensitivity function (CSF) measurement of the spatial frequency of image distortion.)
wv326
- Can realize the two-dimensional data clustering, The true extent of the value of the intermediary measure, measure the true extent of the agency based on the value of image segmentation SNR largest independent component analysis algorithm.