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Fix line-height calc in image-annotations annotate.py (#2266)

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font.getbbox() returns (left, top, right, bottom), so text line height must
be bottom - top (bbox[3] - bbox[1]). The label placement code used
bbox[3] - bbox[0] (bottom - left), mixing an x-coordinate into a height and
producing a slightly wrong label-box height (empirically off by 0-4px
depending on font). The debug heatmap labeling in the same module already
uses the correct bbox[3] - bbox[1], so this brings placement in line.
This commit is contained in:
Artur Spychaj
2026-07-13 02:07:01 +02:00
committed by GitHub
parent dab055f03d
commit 0aaced5332
1 changed files with 2 additions and 1 deletions
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skills/image-annotations/SKILL.md
+2 -1
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@@ -416,7 +416,8 @@ def annotate_image(image_path, annotations, *,
cyan = (eb[0] - em_pad, eb[1] - em_pad, eb[2] + em_pad, eb[3] + em_pad) cyan = (eb[0] - em_pad, eb[1] - em_pad, eb[2] + em_pad, eb[3] + em_pad)
lines = spec['label'].split('\n') lines = spec['label'].split('\n')
tw = max(font.getbbox(line)[2] - font.getbbox(line)[0] for line in lines) tw = max(font.getbbox(line)[2] - font.getbbox(line)[0] for line in lines)
line_h = font.getbbox('Ay')[3] - font.getbbox('Ay')[0] bbox = font.getbbox('Ay')
line_h = bbox[3] - bbox[1]
th = line_h * len(lines) + 4 * (len(lines) - 1) th = line_h * len(lines) + 4 * (len(lines) - 1)
pw, ph = tw + 2 * TEXT_PAD, th + 2 * TEXT_PAD pw, ph = tw + 2 * TEXT_PAD, th + 2 * TEXT_PAD
cands = _find_candidates(pixels, W, H, cyan, pw, ph, font) cands = _find_candidates(pixels, W, H, cyan, pw, ph, font)