CoreImage.CIVignette Class
The CIVignette CoreImage filter

See Also: CIVignette Members

Syntax

[ObjCRuntime.iOS(5, 0)]
[ObjCRuntime.Mac(10, 9, false)]
public class CIVignette : CIFilter

Remarks

The following example shows this filter in use

C# Example

// Create a CIImage from a file.
CIImage flower = CIImage.FromCGImage (UIImage.FromFile ("flower.png").CGImage);

// Construct the Vignette filter
var vignette = new CIVignette()
{
	Image = flower,
	Intensity = 2F,
	Radius = 10F,
};
	
// Get the adjusted image from the Filter.
var output = vignette.OutputImage;
	
// To render the results, we need to create a context, and then
// use one of the context rendering APIs, in this case, we render the
// result into a CoreGraphics image, which is merely a useful representation
//
var context = CIContext.FromOptions (null);

var cgimage = context.CreateCGImage (output, output.Extent);

// The above cgimage can be added to a screen view, for example, this
// would add it to a UIImageView on the screen:
myImageView.Image = UIImage.FromImage (cgimage);
        

With the following source:

Produces the following output:

"Flower" © 2012 Milica Sekulic, used under a Creative Commons Attribution-ShareAlike license: http://creativecommons.org/licenses/by-sa/3.0/

Related content

Requirements

Namespace: CoreImage
Assembly: Xamarin.iOS (in Xamarin.iOS.dll)
Assembly Versions: 0.0.0.0