ITK Pre-Processing Algorithm Wrappers in Python/LaplacianFilter

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Laplacian Image Filter

This filter is implemented using the itkLaplacianImageFilter class in ITK. The filter finds the Laplacian of the image, which can be used to find out regions in image that have sudden changes in pixel intensities.

Parameters: None

In order to reduce the sensitivity of the filter to noise, it is customary to apply the Gaussian filter before applying the Laplacian filter. Fig. 1 shows the result obtained by applying the Laplacian image filter on seg_orig. Although the image represented here is an 8-bit PNG file, it is best to use an image format that supports real values, such as .img or .vtk.

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Fig. 1: Image obtained after applying the Laplacian filter on seg_orig.
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