---
title: "TiffChannelType Enumeration"
canonical: https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_Codecs_TiffChannelType.htm
product: "Graphics Mill 5.5 for .NET"
---

This documentation is for the old version. [Go to the latest Graphics Mill docs](https://www.graphicsmill.com/docs/gm/)

# TiffChannelType Enumeration
 
Contains possible extra channel types.
 
**Namespace:** [Aurigma.GraphicsMill.Codecs](https://www.graphicsmill.com/docs/gm5/N_Aurigma_GraphicsMill_Codecs.htm.md)
 **Assembly:** Aurigma.GraphicsMill (in Aurigma.GraphicsMill.dll)
 
## Syntax
  
```
Public Enumeration TiffChannelType
```
 
```csharp
public enum TiffChannelType
```
 
## Members

|   |  Member name |  Description |
| --- | --- | --- |
 |   |  Color |  Color data. |
 |   |  Alpha |  Unassociated alpha data stores transparency information that logically exists independent of an image. |
 |   |  PremultipliedAlpha |  Associated alpha data stores opacity information which implies that not only alpha channel itself is stored in the file, but also color channels of each pixel are premultiplied with the corresponding alpha channel value. |
 |   |  Undefined |  Unspecified data stores some non-color information of the image. |
   
## See Also

### Reference

- [Aurigma.GraphicsMill.Codecs Namespace](https://www.graphicsmill.com/docs/gm5/N_Aurigma_GraphicsMill_Codecs.htm.md)