Medical Image Processing 1 (MIP1)
Image Signal Analysis and Processing (ISAP)
SS’09
Image Enhancement
Dr. Pierre Elbischger
School of Medical Information Technology
Carinthia University of Applied Sciences
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19.05.2009
Dr. Pierre Elbischger - MIP1/ISAP'SS09
2
Sharpening
using the Laplacian (1)
The principal of sharpening is to highlight fine details in an image or enhance details that have
been blurred, either in error or as a natural effect of a particular method of image acquisition. The
Nabla operation can be replaced by the convolution of the image with the Laplacian of Gaussian
filter kernel.
Sharpening, using the Laplacian
19.05.2009
Dr. Pierre Elbischger - MIP1/ISAP'SS09
3
Sharpening
using the Laplacian (2)
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