An image edge detector is described which produces chained edge points with sub-pixel accuracy.The method incorporates the main ideas of the classic Canny and Devernay algorithms. Theanalysis shows that a slight modification to the original formulation improves the sub-pixelaccuracy of the edge points.
active 2023-08-15 → 2025-07-16 (UTC)
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Line chart, 702 days from 2023-08-15 to 2025-07-16. Pushes: 2 total, peak 2 in a day. Pull requests: 0 total, peak 0 in a day. Issues: 0 total, peak 0 in a day. Comments: 1 total, peak 1 in a day. Stars: 22 total, peak 1 in a day.
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Stars, PRs, issues and forks are under-captured in the later part of this window. GH Archive progressively stopped capturing non-push events during 2026 — −95% or worse by the end of the window. Every series here except Pushes fades for that reason, so a decline above reflects the archive, not this repository. Pushes stay reliable throughout, so read them, and the contributor counts derived from them, as the real signal. Data health has the measurements.
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- Issue comment#1cainiaocq2024-07-19 03:40function cu_chain_edge_points has some problems
Totals cover only the window loaded into ClickHouse and count events, not GitHub's lifetime totals — 22 stars here means stars gained during the window, not the repo's star count.