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Ang Perona-Malik anisotropic diffusion ay nagpapakinis ng mga patag na rehiyon habang pinapanatili ang matatalim na gilid. Tamang-tama para sa denoising habang pinapanatili ang mahalagang istraktura.
Bawasan ang ingay ng imahe gamit ang Perona-Malik anisotropic diffusion habang pinapanatili ang mga gilid at mahalagang mga hangganan ng istruktura.
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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.
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.