async partial void OnResampleSelectorChanged(UISegmentedControl sender)
{
switch (sender.SelectedSegment)
{
case 0:
// Linear downsampling
var passthroughFilter = new GPUImageBrightnessFilter();
passthroughFilter.ForceProcessingAtSize(new CGSize(640.0, 480.0));
var linearImageSource = new GPUImagePicture(inputImage);
linearImageSource.AddTarget(passthroughFilter);
passthroughFilter.UseNextFrameForImageCapture();
await linearImageSource.ProcessImageAsync();
imageView.Image = passthroughFilter.ToImage(UIImageOrientation.Up);
break;
case 1:
// Lanczos downsampling
var lanczosResamplingFilter = new GPUImageLanczosResamplingFilter();
lanczosResamplingFilter.ForceProcessingAtSize(new CGSize(640.0, 480.0));
var lanczosImageSource = new GPUImagePicture(inputImage);
lanczosImageSource.AddTarget(lanczosResamplingFilter);
lanczosResamplingFilter.UseNextFrameForImageCapture();
await lanczosImageSource.ProcessImageAsync();
imageView.Image = lanczosResamplingFilter.ToImage(UIImageOrientation.Up);
break;
case 2:
// Trilinear downsampling
var passthroughFilter2 = new GPUImageBrightnessFilter();
passthroughFilter2.ForceProcessingAtSize(new CGSize(640.0, 480.0));
var trilinearImageSource = new GPUImagePicture(inputImage, true);
trilinearImageSource.AddTarget(passthroughFilter2);
passthroughFilter2.UseNextFrameForImageCapture();
await trilinearImageSource.ProcessImageAsync();
imageView.Image = passthroughFilter2.ToImage(UIImageOrientation.Up);
break;
}
}
async partial void OnResampleSelectorChanged (UISegmentedControl sender)
{
switch (sender.SelectedSegment) {
case 0:
// Linear downsampling
var passthroughFilter = new GPUImageBrightnessFilter ();
passthroughFilter.ForceProcessingAtSize (new CGSize (640.0, 480.0));
var linearImageSource = new GPUImagePicture (inputImage);
linearImageSource.AddTarget (passthroughFilter);
passthroughFilter.UseNextFrameForImageCapture ();
await linearImageSource.ProcessImageAsync ();
imageView.Image = passthroughFilter.ToImage (UIImageOrientation.Up);
break;
case 1:
// Lanczos downsampling
var lanczosResamplingFilter = new GPUImageLanczosResamplingFilter ();
lanczosResamplingFilter.ForceProcessingAtSize (new CGSize (640.0, 480.0));
var lanczosImageSource = new GPUImagePicture (inputImage);
lanczosImageSource.AddTarget (lanczosResamplingFilter);
lanczosResamplingFilter.UseNextFrameForImageCapture ();
await lanczosImageSource.ProcessImageAsync ();
imageView.Image = lanczosResamplingFilter.ToImage (UIImageOrientation.Up);
break;
case 2:
// Trilinear downsampling
var passthroughFilter2 = new GPUImageBrightnessFilter ();
passthroughFilter2.ForceProcessingAtSize (new CGSize (640.0, 480.0));
var trilinearImageSource = new GPUImagePicture (inputImage, true);
trilinearImageSource.AddTarget (passthroughFilter2);
passthroughFilter2.UseNextFrameForImageCapture ();
await trilinearImageSource.ProcessImageAsync ();
imageView.Image = passthroughFilter2.ToImage (UIImageOrientation.Up);
break;
}
}
