# BitmapExtensionMethods.MakeGreyScale examples

Examples for [MakeGreyScale](https://developer.rhino3d.com/api/gh2/type/grasshopper2.extensions.bitmapextensionmethods/makegreyscale.md) in Grasshopper2.Extensions.BitmapExtensionMethods.

## C#

```cs
using Grasshopper2.Extensions;

// As an extension method
data.MakeGreyScale(metric, retainAlpha, gradient);

// As a static method
BitmapExtensionMethods.MakeGreyScale(data, metric, retainAlpha, gradient);
```

## Python

```python
import clr
clr.AddReference('Grasshopper2')
import Grasshopper2.Extensions
clr.ImportExtensions(Grasshopper2.Extensions)

# As an extension method
data.MakeGreyScale(metric, retain_alpha, gradient)

# As a static method
Grasshopper2.Extensions.BitmapExtensionMethods.MakeGreyScale(data, metric, retain_alpha, gradient)
```