async partial void OnFilterSelectorChanged(UISegmentedControl sender)
{
switch (sender.SelectedSegment)
{
case 0:
// Set up a manual image filtering chain
var vignetteFilter = new GPUImageVignetteFilter();
vignetteFilter.VignetteEnd = 0.6f;
vignetteFilter.VignetteStart = 0.4f;
var sepiaFilter = new GPUImageSepiaFilter();
sepiaFilter.AddTarget(vignetteFilter);
var imageSource = new GPUImagePicture(inputImageUrl);
imageSource.AddTarget(sepiaFilter);
vignetteFilter.UseNextFrameForImageCapture();
await imageSource.ProcessImageAsync();
using (var currentImage = vignetteFilter.ToImage())
using (var pngData = currentImage.AsPNG()) {
pngData.Save(path1, true);
}
imageView.Image = UIImage.FromFile(path1);
break;
case 1:
// Do a simpler image filtering
var imageFilter = new GPUImageSketchFilter();
using (var quickFilteredImage = imageFilter.CreateFilteredImage(inputImage))
using (var pngData = quickFilteredImage.AsPNG()) {
pngData.Save(path2, true);
}
imageView.Image = UIImage.FromFile(path2);
break;
}
}
async partial void OnFilterSelectorChanged (UISegmentedControl sender)
{
switch (sender.SelectedSegment) {
case 0:
// Set up a manual image filtering chain
var vignetteFilter = new GPUImageVignetteFilter ();
vignetteFilter.VignetteEnd = 0.6f;
vignetteFilter.VignetteStart = 0.4f;
var sepiaFilter = new GPUImageSepiaFilter ();
sepiaFilter.AddTarget (vignetteFilter);
var imageSource = new GPUImagePicture (inputImageUrl);
imageSource.AddTarget (sepiaFilter);
vignetteFilter.UseNextFrameForImageCapture ();
await imageSource.ProcessImageAsync ();
using (var currentImage = vignetteFilter.ToImage ())
using (var pngData = currentImage.AsPNG ()) {
pngData.Save (path1, true);
}
imageView.Image = UIImage.FromFile (path1);
break;
case 1:
// Do a simpler image filtering
var imageFilter = new GPUImageSketchFilter ();
using (var quickFilteredImage = imageFilter.CreateFilteredImage (inputImage))
using (var pngData = quickFilteredImage.AsPNG ()) {
pngData.Save (path2, true);
}
imageView.Image = UIImage.FromFile (path2);
break;
}
}
