feat: adjust visualization to scale with image size#482
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tybulewicz merged 2 commits intomasterfrom Feb 24, 2026
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Pull request overview
Adds automatic scaling of visualization primitives so annotations remain readable on high-resolution images, using centralized default constants and propagating a computed scale factor through scenes/primitives.
Changes:
- Introduces
auto_scaletoVisualizerand computes a scale factor from image size. - Propagates
scalethrough scenes and applies it to font sizes, outline widths, keypoint sizes, and overlay labels. - Centralizes visualization defaults (font size, opacity, outline width, baseline) in
defaults.pyand adds unit tests.
Reviewed changes
Copilot reviewed 15 out of 15 changed files in this pull request and generated 6 comments.
Show a summary per file
| File | Description |
|---|---|
| tests/unit/visualizer/test_auto_scale.py | Adds unit tests for scale-factor computation and scale propagation/rendering behavior. |
| src/model_api/visualizer/visualizer.py | Adds auto_scale and scale-factor computation; passes scale into scenes. |
| src/model_api/visualizer/scene/segmentation/segmentation.py | Scales overlay label font sizes in segmentation overlays. |
| src/model_api/visualizer/scene/segmentation/instance_segmentation.py | Scales label, polygon outline, bbox outline, and overlay label font sizes. |
| src/model_api/visualizer/scene/keypoint.py | Scales keypoint radius and score font size. |
| src/model_api/visualizer/scene/detection.py | Scales bbox outline/font and overlay label font sizes. |
| src/model_api/visualizer/scene/classification.py | Scales classification label sizes. |
| src/model_api/visualizer/scene/anomaly.py | Scales anomaly overlays, bbox outline/font, label size, and polygon outline width. |
| src/model_api/visualizer/primitive/polygon.py | Uses centralized default opacity/outline width constants. |
| src/model_api/visualizer/primitive/overlay.py | Adds font_size and scales overlay label rendering parameters. |
| src/model_api/visualizer/primitive/label.py | Uses centralized default font size constant. |
| src/model_api/visualizer/primitive/keypoints.py | Adds configurable font size and uses centralized defaults. |
| src/model_api/visualizer/primitive/bounding_box.py | Adds configurable outline width/font size for bbox rendering. |
| src/model_api/visualizer/layout/hstack.py | Passes overlay font size into Overlay.overlay_labels(). |
| src/model_api/visualizer/defaults.py | Introduces centralized visualization default constants and baseline. |
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tybulewicz
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Feb 23, 2026
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What does this PR do?
Add auto_scale parameter to Visualizer that automatically scales drawing primitives (font sizes, line widths, keypoint radius) relative to a 1280px baseline for large images, with centralized default constants in defaults.py.
Fixes #480
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