---
title: alphaCoefficients
framework: coreimage
role: symbol
role_heading: Instance Property
path: coreimage/cicolorpolynomial/alphacoefficients
---

# alphaCoefficients

Polynomial coefficients for the alpha channel.

## Declaration

```swift
var alphaCoefficients: CIVector { get set }
```

## See Also

### Instance Properties

- [blueCoefficients](coreimage/cicolorpolynomial/bluecoefficients.md)
- [greenCoefficients](coreimage/cicolorpolynomial/greencoefficients.md)
- [inputImage](coreimage/cicolorpolynomial/inputimage.md)
- [redCoefficients](coreimage/cicolorpolynomial/redcoefficients.md)