---
title: "HistogramEqualize.Histogram Property "
canonical: https://www.graphicsmill.com/docs/gm/P_Aurigma_GraphicsMill_Transforms_HistogramEqualize_Histogram.htm
archived: false
applies_to:
  - product: "Graphics Mill"
    versions: ["12.1", "6.x-12.x (may differ)"]
    entity_id: "https://www.graphicsmill.com/#software-application"
---

# HistogramEqualize.Histogram Property 

**Applies to:** Graphics Mill 12.1, 6.x-12.x (may differ)
 
Gets or sets a histogram to be equalized.
 
**Namespace:** [Aurigma.GraphicsMill.Transforms](https://www.graphicsmill.com/docs/gm/N_Aurigma_GraphicsMill_Transforms.htm.md)
 **Assembly:** Aurigma.GraphicsMill (in Aurigma.GraphicsMill.dll)
 
## Syntax
  
```csharp
public Histogram Histogram { get; set; }
```
 
### Property Value
A [Histogram](https://www.graphicsmill.com/docs/gm/T_Aurigma_GraphicsMill_Histogram.htm.md) to equalize. The default value is `null`.
 
## Remarks
 If histogram is not set (this property is `null`), algorithm automatically builds it from the bitmap at which the effect is applied (depending on [HistogramMode](https://www.graphicsmill.com/docs/gm/P_Aurigma_GraphicsMill_Transforms_HistogramEqualize_HistogramMode.htm.md) property). Otherwise it will build LUT that equalizes this histogram and apply it on the image.
   
## See Also

### Reference

- [HistogramEqualize Class](https://www.graphicsmill.com/docs/gm/T_Aurigma_GraphicsMill_Transforms_HistogramEqualize.htm.md)
- [Aurigma.GraphicsMill.Transforms Namespace](https://www.graphicsmill.com/docs/gm/N_Aurigma_GraphicsMill_Transforms.htm.md)