---
title: "ColorAdjustmentProvider.BrightnessContrast Method "
canonical: https://www.graphicsmill.com/docs/gm/M_Aurigma_GraphicsMill_ColorAdjustmentProvider_BrightnessContrast_2_427c5821.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"
---

# ColorAdjustmentProvider.BrightnessContrast Method 

**Applies to:** Graphics Mill 12.1, 6.x-12.x (may differ)
 
Corrects brightness and contrast of the bitmap.
 
**Namespace:** [Aurigma.GraphicsMill](https://www.graphicsmill.com/docs/gm/N_Aurigma_GraphicsMill.htm.md)
 **Assembly:** Aurigma.GraphicsMill (in Aurigma.GraphicsMill.dll)
 
## Syntax
  
```csharp
public void BrightnessContrast(float brightnessAmount,float contrastAmount
)
```
 
### Parameters
 
 - brightnessAmount
     - Type: System.Single
The brightness modifier in range [-1, 1].

 - contrastAmount
     - Type: System.Single
The contrast modifier in range [-1, 1]. Minimum value (-1) will produce absolutely gray image, neutral value (0) does no effect, maximum value (1) makes the image extremely posterized.
   
## See Also

### Reference

- [ColorAdjustmentProvider Class](https://www.graphicsmill.com/docs/gm/T_Aurigma_GraphicsMill_ColorAdjustmentProvider.htm.md)
- [Aurigma.GraphicsMill Namespace](https://www.graphicsmill.com/docs/gm/N_Aurigma_GraphicsMill.htm.md)