CoreImage.CIConstantColorGenerator Class
The CIConstantColorGenerator CoreImage filter

See Also: CIConstantColorGenerator Members


[ObjCRuntime.iOS(5, 0)]
public class CIConstantColorGenerator : CIFilter


The following example shows this filter in use

C# Example

// Create the ConstantColorGenerator
var colorGen = new CIConstantColorGenerator ()
	Color = new CIColor (UIColor.Blue)

// The Generator Filters need to be cropped before they can be displayed
var crop = new CICrop (IUCrop ()
	Image = colorGen.OutputImage,
	Rectangle = new CIVector (0, 0, window.Bounds.Width, window.Bounds.Height) 

// Get the final Image from the Crop Filter
var output = crop.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: "Sunrise near Atkeison Plateau" © 2012 Charles Atkeison, used under a Creative Commons Attribution-ShareAlike license: "canon" © 2012 cuatrok77 hernandez, used under a Creative Commons Attribution-ShareAlike license:

Related content


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