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Unformatted text preview: Try a lot of different weights under Filters > Custom (with and without scaling and bias) Smoothing with Uniform weighting (box filter) Smoothing with Gaussian weighting with radius of different sizes - How can this do a 100x100 Gaussian Smooth so quickly? (Separability into 2 1-D smooths) Edge Detection (Horizontal, Vertical) then combine (with Opacity) to illustrate Gradient Magnitude Laplacian Sharpening 5. Median filter Zoom image up create white pixel, black pixel over small ROI right over the top of an edge. Then use Median Filter to clean it up without destroying the edge. 6. Unsharp Masking Reverse-engineer the Unsharp Masking Kernel. 7. The Laplacian Operator Derive the Laplacian Operator as the difference of the differences....
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- Winter '08