Real-world algorithm demonstration, applied to a NASA portrait.Image: NASA / Eileen Collins · scikit-image (public domain)View source ↗
Prompt
Apply Laplacian Edges, creating a signed grayscale relief of local brightness changes around a neutral gray base. Outline boundaries with adjacent light and dark bands, emphasizing fine texture, sharp transitions, and slight noise. Remove original color and broad photographic shading. Keep the original subject and composition.
02WristSpatialFilteringA comparison showing spatial filtering kernels and their results on a hand X-ray. Panel f demonstrates the zero-crossing edge detection characteristic of the Laplacian operator on anatomical structures.Kieranmaher · Public domain · Wikimedia Commons03Usm-unsharp-maskA spiral pattern demonstrating unsharp masking. The bottom half exhibits the light and dark halos at intensity transitions, which result from adding a Laplacian-filtered version of the image back to the original.Nevit Dilmen · Public domain · Wikimedia Commons04LaplacetfMathematical surface plots of discrete Laplacian kernels. They represent the transfer functions used in spatial filtering to calculate second-order derivatives for edge detection in digital images.Jkrieger 13:07, 21. Sep 2006 (CEST) · Copyrighted free use · Wikimedia Commons05AI illustration: A clock mechanism is shown with light-dark double outlines on all metalliA clock mechanism is shown with light-dark double outlines on all metallic edges. The contrast changes highlight both the large gears and the fine surface textures of the components.Illustration generated for the Atlas (AI)06AI illustration: A stone statue displays white halos along its contours against a dark bacA stone statue displays white halos along its contours against a dark background. The processing result detects high-frequency details in the hair and the cracks across the marble surface.Illustration generated for the Atlas (AI)07AI illustration: A canyon landscape undergoes edge detectionA canyon landscape undergoes edge detection. The right side shows light-dark double halos on hard cliff edges and fine noise in textured areas, representing the Laplacian's response to gradient changes.Illustration generated for the Atlas (AI)
