---
title: "Histogram.BuildSum Method (Pipeline)"
canonical: https://www.graphicsmill.com/docs/gm/M_Aurigma_GraphicsMill_Histogram_BuildSum_1_cbd5a33e.htm
product: "Graphics Mill"
---

# Histogram.BuildSum Method (Pipeline)
 
Builds a sum histogram using the pipeline approach.
 
**Namespace:** [Aurigma.GraphicsMill](https://www.graphicsmill.com/docs/gm/N_Aurigma_GraphicsMill.htm.md)
 **Assembly:** Aurigma.GraphicsMill (in Aurigma.GraphicsMill.dll)
 
## Syntax
  
```csharp
public static Histogram BuildSum(Pipeline pipeline
)
```
 
### Parameters
 
 - pipeline
     - Type: [Aurigma.GraphicsMill.Pipeline](https://www.graphicsmill.com/docs/gm/T_Aurigma_GraphicsMill_Pipeline.htm.md)
A [Pipeline](https://www.graphicsmill.com/docs/gm/T_Aurigma_GraphicsMill_Pipeline.htm.md) to build the histogram for.
 
### Return Value
A [Histogram](https://www.graphicsmill.com/docs/gm/T_Aurigma_GraphicsMill_Histogram.htm.md) based on average of pixel channels values.
   
## See Also

### Reference

- [Histogram Class](https://www.graphicsmill.com/docs/gm/T_Aurigma_GraphicsMill_Histogram.htm.md)
- [BuildSum Overload](https://www.graphicsmill.com/docs/gm/O_T_Aurigma_GraphicsMill_Histogram_BuildSum.htm.md)
- [Aurigma.GraphicsMill Namespace](https://www.graphicsmill.com/docs/gm/N_Aurigma_GraphicsMill.htm.md)