---
title: "Blur.Radius Property "
canonical: https://www.graphicsmill.com/docs/gm/P_Aurigma_GraphicsMill_Transforms_Blur_Radius.htm
product: "Graphics Mill"
---

# Blur.Radius Property 
 
Gets or sets the blur radius.
 
**Namespace:** [Aurigma.GraphicsMill.Transforms](https://www.graphicsmill.com/docs/gm/N_Aurigma_GraphicsMill_Transforms.htm.md)
 **Assembly:** Aurigma.GraphicsMill (in Aurigma.GraphicsMill.dll)
 
## Syntax
  
```csharp
public float Radius { get; set; }
```
 
### Property Value
The blur radius must be positive. The default value is `2`.
 
## Remarks
  
Radius means how much neighbour pixels the algorithm fetches (for radius = 1 it will take 8 neighbours, for radius = 2 it will use already 24 neighbour pixels, etc). That's why in general the larger radius, the slower blur works. However Graphics Mill implements special algorithms which are optimized for large radiuses, that's why this rule not always works.
   
## See Also

### Reference

- [Blur Class](https://www.graphicsmill.com/docs/gm/T_Aurigma_GraphicsMill_Transforms_Blur.htm.md)
- [Aurigma.GraphicsMill.Transforms Namespace](https://www.graphicsmill.com/docs/gm/N_Aurigma_GraphicsMill_Transforms.htm.md)