---
title: "GrayscaleChannelCombiner Class"
canonical: https://www.graphicsmill.com/docs/gm/T_Aurigma_GraphicsMill_GrayscaleChannelCombiner.htm
product: "Graphics Mill"
---

# GrayscaleChannelCombiner Class
 
Creates a grayscale image by combining two grayscale images.
 
**Namespace:** [Aurigma.GraphicsMill](https://www.graphicsmill.com/docs/gm/N_Aurigma_GraphicsMill.htm.md)
 **Assembly:** Aurigma.GraphicsMill (in Aurigma.GraphicsMill.dll)
 
## Syntax
  
```csharp
public sealed class GrayscaleChannelCombiner : ChannelCombiner
```
 
## Remarks
  
**Note** 
The merging channels must be of the same dimensions and resolution.
 
## Inheritance Hierarchy
  
- System.Object
    - [Aurigma.GraphicsMill.PipelineElement](https://www.graphicsmill.com/docs/gm/T_Aurigma_GraphicsMill_PipelineElement.htm.md)
        - [Aurigma.GraphicsMill.ChannelCombiner](https://www.graphicsmill.com/docs/gm/T_Aurigma_GraphicsMill_ChannelCombiner.htm.md)
            - Aurigma.GraphicsMill.GrayscaleChannelCombiner
 
## Thread Safety
 Static members of this type are not safe for multi-threaded operations. Instance members of this type are not safe for multi-threaded operations.
   
## See Also

### Reference

- [GrayscaleChannelCombiner Members](https://www.graphicsmill.com/docs/gm/AllMembers_T_Aurigma_GraphicsMill_GrayscaleChannelCombiner.htm.md)
- [Aurigma.GraphicsMill Namespace](https://www.graphicsmill.com/docs/gm/N_Aurigma_GraphicsMill.htm.md)

### Manual

- [Reading and Writing Channels](https://www.graphicsmill.com/docs/gm/reading-and-writing-channels.htm.md)