Laplacian of Gaussian Filtering
Laplacian of Gaussian Filtering
This Demonstration shows the filtering of an image using a 2D convolution with the Laplacian of a Gaussian kernel.
This operation is useful for detecting features or edges in images.
The kernel is sampled and normalized using the Laplacian of the Gaussian function .
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π
4
σ
2
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y
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2
σ
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2
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σ
The standard deviation is chosen to be one fifth of the width of the kernel.
σ