---
title: surface
framework: coreimage
role: symbol
role_heading: Instance Property
path: coreimage/ciimageprocessoroutput/surface
---

# surface

An output surface object that your Core Image Processor Kernel can write to.

## Declaration

```swift
var surface: IOSurfaceRef { get }
```

## See Also

### Providing Output Image Data

- [baseAddress](coreimage/ciimageprocessoroutput/baseaddress.md)
- [metalTexture](coreimage/ciimageprocessoroutput/metaltexture.md)
- [pixelBuffer](coreimage/ciimageprocessoroutput/pixelbuffer.md)