matei jordache
d4c5cf4670
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30 lines
1.0 KiB
Markdown
30 lines
1.0 KiB
Markdown
# Arc Revolve
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Subtract a cylindrical arc background. A circular arc of the given radius is rolled under each row (or column), and the envelope it traces is subtracted as the background.
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## Inputs
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| Name | Type | Required | Description |
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|------|------|----------|-------------|
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| field | DATA_FIELD | Yes | Input field |
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## Outputs
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| Name | Type | Description |
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|------|------|-------------|
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| leveled | DATA_FIELD | Field with arc background subtracted |
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| background | DATA_FIELD | The estimated arc background |
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## Controls
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| Name | Type | Default | Description |
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|------|------|---------|-------------|
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| radius | INT | 20 | Arc radius in pixels (1–1000) |
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| direction | dropdown | horizontal | Direction to apply the arc: horizontal, vertical, or both |
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## Notes
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- Larger radii produce smoother backgrounds that follow gentle curvature. Smaller radii track finer features.
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- The "both" direction takes the minimum of horizontal and vertical backgrounds.
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- Deep outliers are suppressed before fitting so that scratches or pits do not pull the arc down.
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