How to smoothing a image by image rows and columns based ?

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Selva Karna 2017-8-11

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回答： Image Analyst 2017-8-18

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Answer 1

Kushagr Gupta 2017-8-18

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From the limited amount of information provided in the question I am assuming you want to know how to filter (eg. smoothen) images.

Have a look at the functions ' imfilter ' and ' fspecial ' in the Image Processing Toolbox within MATLAB that can be used for performing smoothing.

Smoothing in general is a low pass operation and hence using a 'Gaussian' filter is a good way to start doing so. Play around with the kernel sizes and different types of filter to come up with something that suits your requirements.

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Answer 2

Image Analyst 2017-8-18

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在 MATLAB Online 中打开

Here's one way, with a moving mean "box" filter

windowWidth = 31; % Whatever.  Bigger number for smoother images.
kernel = ones(windowWidth) / windowWidth^2;
blurredImage = conv2(double(grayImage), kernel, 'same');
imshow(blurredImage, []);

Or you could use imfilter(), gaussfilt(), nlfilter(), etc.