print_quality opimage2d → tableimport fullseye as fs; fs.ledger.grade_barcode1d(image, symbologies=None, *, n_scans=10, aperture_x=0.5, angle_deg=None, expected_text=None) (実装を直接呼ぶなら import symgrade; symgrade.grade_barcode1d(image, symbologies=None, *, n_scans=10, aperture_x=0.5, angle_deg=None, expected_text=None)、台帳から引くなら opssymbol.get("grade_barcode1d"))画像の 1-D シンボルの印字品質の等級(n_scans 本の走査線の平均)を返す(table)。
Grade a 1-D symbol in a reflectance image: read it (:func:barcode1d.read_barcode1d)
to find the bar direction and the module width X, filter the image with a
circular measuring aperture of aperture_x · X diameter (default 0.5 X), take
n_scans profiles evenly over 10 %..90 % of the bar height and grade each
(:func:grade_barcode_profile). symbol_grade = mean of the profile grades
(0..4), letter its letter; parameters = per-parameter lists over the scans
and parameter_grade_mean their mean grades; limiting = the parameters that
most often set a profile’s grade. With expected_text a profile that decodes to
a different string is graded 0 (misread counts them) — a misread is worse than
a no-read.
限界 / limits: 開口は円(画素で積分)、反射率は画像の値そのまま。走査線は画像の端まで 伸ばし、各走査線で読めたシンボルの両側の静寂域 + 1 X だけを評価に使う。
空の入力は ValueError。
拒否(ValueError): 2-D でない、非有限、n_scans < 1、aperture_x が
[0, 2] の外。シンボルが見つからなければ :class:barcode1d.Barcode1DError。
py -3.11 examples/poc_symbol_package_1d.pytable を入力に取れる)render_symbol · symbol_read_trials · symbol_read_pod · ocr_classify · ocr_read_line · ocr_read_trials
print_quality)grade_barcode_profile · grade_datacode2d
Provenance: symgrade.py — SYMBOL operator registry. この per-op ノートは tools/opdocs.py md が自動生成(手編集しない)。
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.