annotate_scale_bar — ANNOTATE `paper` op

• Data kinds: image2d → image2d

• Call: import annotate; annotate.annotate_scale_bar(img, units_per_pixel, unit='µm', corner='rb', target_fraction=0.2, margin=14, color='neutral', thickness=5, font_size=13, box_alpha=0.55, text_color=None, scheme='okabe_ito', font_path=None, layout=None) (or opsannotate.get("annotate_scale_bar"))

Usage

Returns an image (image2d): a scale bar of a round length placed in a corner (with value and unit).

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

:func:scale_bar は長さを呼び手が決めるのに対し、こちらは画素分解能から

長さを選ぶ(:func:annotate_scale_bar_layout)。上隅では文字をバーの下に、

下隅では上に置く。

Raises

------

ValueError

:func:annotate_scale_bar_layout と同じ + 文字が画像に収まらない。

Detailed usage guide

• figure_annotation family guide

Background guides (the physics and conventions behind this op)

• dataset_conventions — 学習データセット規約の知識 — COCO / YOLO / VOC と外観検査での落とし穴

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)

• paper_figure — py -3.11 examples/paper_figure.py

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

text_box · arrow · leader_line · label_points · crosshair · legend_box · color_bar · scale_bar

Same category (`paper`)

annotate_leader_layout · annotate_leader · annotate_markers · annotate_legend · annotate_dimension_layout · annotate_dimension · annotate_angle_layout · annotate_angle

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

annotate_scale_bar — ANNOTATE paper op