In my last post I mentioned using 5x5 Gaussian kernel as a Point Spread Function to make an image blurry.
What occured to me last night is that these Gaussian kernels are demonstrated so many times in image processing without any explanation of the underlying function used. A Gaussian function is in fact continuous and not like the 5x5 matrix I showed at all.
So to explain a bit more lets derive our 5x5 Gaussian kernel in the last post from the 2D Gaussian function (I've installed LaTex plugin to wordpress to make it a bit more readable):
Showing posts with label Gaussian Kernel. Show all posts
Showing posts with label Gaussian Kernel. Show all posts
Friday, 27 March 2009
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