public static UIImage Blur(this UIImage image, float radius)
{
if (image == null)
return image;
try
{
var imageToBlur = CIImage.FromCGImage(image.CGImage);
if(imageToBlur == null)
return image;
var transform = new CIAffineClamp();
transform.Transform = CGAffineTransform.MakeIdentity();
transform.Image = imageToBlur;
var gaussianBlurFilter = new CIGaussianBlur();
gaussianBlurFilter.Image = transform.OutputImage;
gaussianBlurFilter.Radius = radius;
if (context == null)
context = CIContext.FromOptions(null);
var resultImage = gaussianBlurFilter.OutputImage;
var finalImage = UIImage.FromImage(context.CreateCGImage(resultImage, new RectangleF(PointF.Empty, image.Size)), 1, UIImageOrientation.Up);
return finalImage;
}
catch (Exception ex)
{
Console.WriteLine(ex);
return image;
}
}
public static UIImage Blur(this UIImage image, float radius)
{
try
{
var imageToBlur = CIImage.FromCGImage(image.CGImage);
var transform = new CIAffineClamp();
transform.Transform = CGAffineTransform.MakeIdentity();
transform.Image = imageToBlur;
var gaussianBlurFilter = new CIGaussianBlur();
gaussianBlurFilter.Image = transform.OutputImage;
gaussianBlurFilter.Radius = radius;
if (context == null)
{
context = CIContext.FromOptions(null);
}
var resultImage = gaussianBlurFilter.OutputImage;
var finalImage = UIImage.FromImage(
context.CreateCGImage(resultImage, new RectangleF(PointF.Empty, image.Size)), 1, UIImageOrientation.Up);
return(finalImage);
}
catch (Exception ex)
{
Console.WriteLine(ex);
return(image);
}
}
public static UIImage Blur(this UIImage image, float radius)
{
if (image == null)
{
return(null);
}
try
{
var imageToBlur = CIImage.FromCGImage(image.CGImage);
if (imageToBlur == null)
{
return(image);
}
var transform = new CIAffineClamp
{
Transform = CGAffineTransform.MakeIdentity(),
Image = imageToBlur
};
var gaussianBlurFilter = new CIGaussianBlur
{
Image = transform.OutputImage,
Radius = radius
};
if (context == null)
{
context = CIContext.FromOptions(null);
}
var resultImage = gaussianBlurFilter.OutputImage;
var finalImage = UIImage.FromImage(context.CreateCGImage(resultImage, new CGRect(CGPoint.Empty, image.Size)), 1,
UIImageOrientation.Up);
return(finalImage);
}
catch (Exception ex)
{
LogManager.Shared.Report(ex);
return(image);
}
}
CIImage AffineClamp ()
{
var affine_clamp = new CIAffineClamp () {
Image = flower
};
return Crop (affine_clamp);
}