---
title: referenceRasterHeight
framework: corevideo
role: symbol
role_heading: Instance Property
path: corevideo/cvimagedisplaymaskrectangle/referencerasterheight
---

# referenceRasterHeight

Specifies the height in pixels of the 2D coordinate system to define the rectangle.

## Declaration

```swift
var referenceRasterHeight: UInt16
```

## Discussion

Discussion Usually matches the height of the video or the output device.