---
title: structuringElement
framework: accelerate
role: symbol
role_heading: Instance Property
path: accelerate/vimage/morphologyoperation/structuringelement
---

# structuringElement

The dilation or erosion structuring element.

## Declaration

```swift
var structuringElement: vImage.ConvolutionKernel2D<ComponentType>? { get }
```

## See Also

### Instance Properties

- [height](accelerate/vimage/morphologyoperation/height.md)
- [width](accelerate/vimage/morphologyoperation/width.md)