increment_sign — CODEMATCH code op

• Data kinds: image2d → image2d

• Call: import fullseye as fs; fs.ledger.increment_sign(image, axis='h') (to call the implementation directly, import codematch; codematch.increment_sign(image, axis='h'); from the registry, opscodematch.get("increment_sign"))

Usage

Sign of the increment to the neighbouring pixel, b = [I(next) >= I(this)] (uint8 1 / 0).

> The detailed description below is the original text — the summary and the headings are translated.

axis="h"(既定)は行に沿って右隣と比べ、形は (H, W-1)。axis="v" は下隣と比べ、形は (H-1, W)。等しい画素の組は 1(論文の >= の規約)。狭義単調増加の明るさの変換 g では increment_sign(g(I)) == increment_sign(I) が厳密に成り立つ(ISC の不変性の芯)。

Detailed usage guide

• robust_code_matching family guide

References (sample data, literature)

• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).

• Operator provenance and references — the sources of the research/methods this op family came from.

• The canonical algorithm (author, year) and its uses are named in the family usage guide above.

Runnable examples (verified samples that actually call this op)

• (none yet)

Ops the type connects to (they accept image2d as input)

orientation_code · ocm_match · isc_match · scc_match · radial_reach_filter

Same category (code)

orientation_code

*Provenance: codematch.py — CODEMATCH operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.