Short note on Laplacian Filters.

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written 5.5 years ago by

teamques10 ★ 65k

Second-order derivatives is better suited for most applications for sharpening.

By constructing a filter based on discrete formulation of second- order derivatives.

Simplest isotropic derivative operator: Laplacian

Laplacian Filter is created or designed as:

Following figure.11 shows various Laplacian Masks taking 4-neighbours and 8-neighbours.

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Figure 11

Problem: While applying Laplacian …

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