Need code to apply median filter and then gaussian filter to patches of an image

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Nethra
Nethra 2013-11-21
回答： Bruno Pop-Stefanov 2013-11-21
The image contain some noise and then median filter and then gaussian filter to remove the noise

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Bruno Pop-Stefanov
Bruno Pop-Stefanov 2013-11-21
You can use medfilt2 to perform 2D median filtering on an image. Example:
% Read image
img = imread('yourimage.jpg');
% Median filtering
filtered_img = medfilt2(img);
You can use fspecial to create a Gaussian filter and use imfilter to filter the image with that filter. Example:
% Read image
img = imread('yourimage.jpg');
% Gaussian filter of size 11-by-11 and std 3 pixels
h = fspecial('gaussian', 11, 3);
% Convolve
filtered_img = imfilter(img, h);

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