---
title: minimumSize
framework: vision
role: symbol
role_heading: Instance Property
path: vision/vndetectrectanglesrequest/minimumsize
---

# minimumSize

The minimum size of a rectangle to detect, as a proportion of the smallest dimension.

## Declaration

```swift
var minimumSize: Float { get set }
```

## Discussion

Discussion The value should range from 0.0 to 1.0 inclusive. The default minimum size is 0.2. Any smaller rectangles that Vision may have detected aren’t returned.

## See Also

### Configuring Detection

- [minimumAspectRatio](vision/vndetectrectanglesrequest/minimumaspectratio.md)
- [maximumAspectRatio](vision/vndetectrectanglesrequest/maximumaspectratio.md)
- [VNAspectRatio](vision/vnaspectratio.md)
- [quadratureTolerance](vision/vndetectrectanglesrequest/quadraturetolerance.md)
- [VNDegrees](vision/vndegrees.md)
- [minimumConfidence](vision/vndetectrectanglesrequest/minimumconfidence.md)
- [VNConfidence](vision/vnconfidence.md)
- [maximumObservations](vision/vndetectrectanglesrequest/maximumobservations.md)