CODEWITHSUNDEEP
matlab
HossBender
HossBender

Reputation: 1079

Matlab Fspecial Filtering an Image

How can I use fspecial to apply an averaging filter to the image clown?

I have loaded the clown image into matlab and I have written h=fspecial('average', 3). Now how do I use h to apply the averaging filter to clown?

Upvotes: 0

Views: 419

Answers (2)

eigenchris
eigenchris

Reputation: 5821

You use the avgImage = conv2(myImage,h) function to perform a 2D convolution.

You might consider using h=fspecial('gaussian',[5 5],1) since gaussians give better blurring results, unless you specifically want to take the average.

Upvotes: 1

rayryeng
rayryeng

Reputation: 104464

Since you have access to fspecial, that means you have the image processing toolbox. I would recommend you use imfilter instead, as it is specifically designed to filter images and takes advantages of Intel Integrated Performance Primitives (IIPP) if your processor supports it. Very simply, do:

averageImage = imfilter(inputImage, h);

inputImage is the image you read in (presumably with imread), and averageImage is the output filtered image.

Upvotes: 0

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