localSample
Extract the neighborhood of a pixel.
Contents
Syntax.
sample = localSample( X, r );
Description.
sample = localSample( X, r ) returns, for each pixel of the image, the values of the pixels in a search window of radius r around the pixel.
Example: compute a median filtering.
% Read image. init= imread('squared.png'); % Add Cauchy noise and display. gamma=5; input=addCauchyNoise(init, gamma); figure, imshow(uint8(input)), title('Image with Cauchy noise.') % Compute local samples with 6 radius window. sampleLocal= localSample(input, 6); % Compute median filtering. filtred = median(sampleLocal,3); % Plot the filtred image. figure, imshow(uint8(filtred)), title('Median filtering')

