Image Processing Operations based on Partial Differential Equations

Carolina Toledo Ferraz, João do Espírito Santo Batista Neto

Abstract. This work presents the implementation of linear and non-linear Partial Differential Equations - PDEs (heat equation, more specifically) for image processing tasks such as image smoothing with edge and non-edge preserving capabilities. It also shows how edge detection can be attained through geometrical invariants.

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a) Original image; b) non-edge preserving smoothing; c) edge preserving smoothing; d) edge extraction of (b)