Description: 中值滤波是对一个滑动窗口内的诸像素灰度值排序，用其中值代替窗口中心象素的原来灰度值，它是一种非线性的图像平滑法，它对脉冲干扰级椒盐噪声的抑制效果好，在抑制随机噪声的同时能有效保护边缘少受模糊-Median filter is a sliding window from inside the gray value pixel sequencing, using a window center pixel value to replace the original gray value, it is a non-linear image smoothing method, its pulse-grade salt and pepper noise interference inhibition effective in suppressing random noise at the same time can effectively protect the edge of less fuzzy Platform: |
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Author:fujay |
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Description: 图像处理中的中值滤波源代码，能够较好的模糊图像，除去椒盐噪声。-Image processing median filter source code, be able to better fuzzy images, remove the salt and pepper noise. Platform: |
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Author:gillyamylee |
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Description: 中值滤波是常用的降噪算法，它可以保留比较尖锐的边界，但是却容易模糊图象的细节。尽管已经有一些改进
算法，但效果并不十分理想。文章介绍了一种保细节中值滤波算法，采用了多尺度多方向的窗口，根据图象各部分特性自
适应地选择窗口进行中值滤波。实验结果证明，文章的算法优于其他几种常用的中值滤波算法。
-Median filter is commonly used in noise reduction algorithm, which can retain relatively sharp boundary, but the details easy to fuzzy images. Despite some improved algorithm, the effects are not very good. In this paper, the details of a security filtering algorithm using the multi-scale multi-orientation of the window, according to characteristics of the various parts of the image selection window for adaptive median filter. The experimental results proved that the article is better than several other commonly used algorithm of median filtering algorithm. Platform: |
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Author:陈卿 |
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Description: 下载并读入被噪音污染的Noisychurch图像数据，用Matlab 编程采用下述方法分
别实现该图像的增强操作：
1） 用空域法实现图像的增强，分别采用如下模板操作：2x2 和3x3 的幅值为1
的模板，比较去噪和模糊的折中效果；采用3x3 的中值滤波器进行去噪操作；
采用Laplacian 模板[0 -1 0 -1 5 -1 0 -1 0]进行锐化操作。
2） 用频域法实现该图像的低通和高通滤波，选择合适的截止频率。
3） 用小波分析法实现该图像的低通和高通滤波，注意离散小波分析的分解和重
构算法的运用。
4） 比较上述三种处理方法的结果。 -Download and read by the noise pollution Noisychurch image data using Matlab programming using the following method to achieve the image enhancement operation: 1) image enhancement airspace law, respectively, using the following template operation: 2x2 and 3x3 amplitude a template comparison denoising and fuzzy compromise denoising operation with a 3x3 median filter using Laplacian template [0-10 -15-1 0-10] for sharpening operation. . 2) low-pass and high-pass filtering of the image using the frequency-domain method, select the appropriate cut-off frequency. 3) low-pass and high-pass filtering of the image using wavelet analysis, pay attention to the use of discrete wavelet analysis decomposition and reconstruction algorithm. 4) comparing the results of the three processing method. Platform: |
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Author:Haibin Zhang |
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Description: 图像退化模糊图画加高斯噪声，经中值滤波器后恢复；退化图像经维纳滤波器后恢复。中值滤波，维纳滤波复原图像比较-The image degradation fuzzy picture plus Gaussian noise, and recover after a median filter restore the degraded image by the Wiener filter. Median filtering, Wiener filter restoration image Platform: |
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Author: |
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Description: 中值滤波器是一种最常用的非线性平滑滤波器。可消除图像中孤立的噪声点,又可产生较少的模糊。-Median filter is one of the most commonly used nonlinear smoothing filter. Isolated noise can eliminate the image, but also generate less fuzzy. Platform: |
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Author:李浩杰 |
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Description: Magnetic resonance (MR) images can be used to detect lesions in the brains of multiple sclerosis (MS)
patients and is essential for diagnosing the disease and monitoring its progression. An automatic method is
presented for segmentation of MS lesions in multispectral MR images. Firstly a PD-w image is subtracted its
corresponding T1-w image to get an image in which the cerebral spinal fluid (CSF) is enhanced. Then based on
kernel fuzzy c-means (KFCM) algorithm, the enhanced image and the corresponding T2-w image are segmented
respectively to extract the CSF region and the CSF combining MS lesions region. A raw MS lesions image is
obtained by subtracting the CSF region CSF combining MS region. By applying median filter and
thresholding to the raw image, the MS lesions are detected finally. Results are quantitatively uated on
BrainWeb images using Dice similarity coefficient (DSC). Finally, the potential of the method as well as its
limitations are discussed.-Magnetic resonance (MR) images can be used to detect lesions in the brains of multiple sclerosis (MS)
patients and is essential for diagnosing the disease and monitoring its progression. An automatic method is
presented for segmentation of MS lesions in multispectral MR images. Firstly a PD-w image is subtracted its
corresponding T1-w image to get an image in which the cerebral spinal fluid (CSF) is enhanced. Then based on
kernel fuzzy c-means (KFCM) algorithm, the enhanced image and the corresponding T2-w image are segmented
respectively to extract the CSF region and the CSF combining MS lesions region. A raw MS lesions image is
obtained by subtracting the CSF region CSF combining MS region. By applying median filter and
thresholding to the raw image, the MS lesions are detected finally. Results are quantitatively uated on
BrainWeb images using Dice similarity coefficient (DSC). Finally, the potential of the method as well as its
limitations are discussed. Platform: |
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Author:mahsy |
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Description: 中值滤波是对一个滑动窗口内的诸像素灰度值排序，用其中值代替窗口中心象素的原来灰度值，它是一种非线性的图像平滑法，它对脉冲干扰级椒盐噪声的抑制效果好，在抑制随机噪声的同时能有效保护边缘少受模糊。-Median filtering is the pixel on a sliding window in the value ordering, the original gray instead of window center pixel values by which value, it is a kind of nonlinear image smoothing method and its inhibition effect on pulse interference level of salt and pepper noise, can effectively protect the edge less fuzzy in suppressing random noise and. Platform: |
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Author:吴刚 |
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Description: Noise adaptive fuzzy switching median filter for salt and pepper noise reduction in matlab Platform: |
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Author:thae hua |
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Description: 均值滤波能滤除一些噪声,但是会使的边缘模糊,不能很好的保持变换特性-Median filter can filter out some noise, but can make the edges of the fuzzy, cannot remain good transformation characteristics Platform: |
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Author:xeonf |
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Description: 中值滤波可以保留目标边缘，这是中值滤波器相对于均值滤波器的最大优势。中值滤波具有去噪的性能，可以消除孤立的噪声点，可以用来减弱随机干扰和脉冲干扰，但是边缘不模糊。(Median filter can retain the target edge, which is the maximum advantage of median filter compared to mean filter. The median filter has the performance of denoising, which can eliminate the isolated noise point, which can be used to reduce the random interference and pulse interference, but the edge is not fuzzy.) Platform: |
Size: 10240 |
Author:梁LHM |
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