See Also: CIColorControls Members
The following example shows this filter in use
C# Example
// Load our Image from a file CIImage flower = CIImage.FromCGImage (UIImage.FromFile ("flower.png").CGImage); // Create the CIColorControls Filter var colorCtrls = new CIColorControls () { Image = flower, Brightness = .5F, // Min: 0 Max: 2 Saturation = 1.2F, // Min: -1 Max: 1 Contrast = 3.1F // Min: 0 Max: 4 }; // Get the Resulting image from the filter return colorCtrls.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/