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이방성 확산

Perona-Malik 이방성 확산은 날카로운 모서리를 유지하면서 평평한 영역을 매끄럽게 만듭니다. 중요한 구조를 유지하면서 노이즈 제거에 이상적입니다.

가장자리와 중요한 구조적 경계를 유지하면서 Perona-Malik 이방성 확산으로 이미지 노이즈를 줄입니다.

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Frequently Asked Questions

What is anisotropic diffusion?

Anisotropic diffusion is an edge-preserving smoothing technique based on the heat equation. Unlike Gaussian blur which smooths everything uniformly, it adapts the diffusion rate based on local gradients — smoothing flat areas while leaving edges sharp.

How is it different from bilateral filtering?

Both preserve edges, but anisotropic diffusion is an iterative PDE-based method that naturally evolves over time, while bilateral filtering is a single-pass weighted average. Anisotropic diffusion often produces more natural-looking results for denoising.

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