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# VNNormalizedPointForImagePointUsingRegionOfInterest(_:_:_:_:)

Projects a point from a region of interest within the image coordinates into normalized coordinates.

```
func VNNormalizedPointForImagePointUsingRegionOfInterest(_ imagePoint: CGPoint, _ imageWidth: Int, _ imageHeight: Int, _ roi: CGRect) -> CGPoint
```

## Parameters

`imagePoint`

The input point in image coordinates.

`imageWidth`

The width of the image.

`imageHeight`

The height of the image.

`roi`

The region of interest within the image-coordinate space.

## Return Value

A point in the normalized-coordinate space.

## Discussion

---

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