See Also: CIFalseColor Members
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); // Create the two new colors to be used in the filter var color0 = new CIColor (new CGColor (255F, 251F, 0F)); // A Yellowish Color var color1 = new CIColor (new CGColor (51F, 0F, 255F)); // A Purplish Color var falseColor = new CIFalseColor () { Image = flower, Color0 = color0, Color1 = color1 }; // Get the color adjusted image from the filter var output = falseColor.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/