private void applySepiaFilter(float sepiaIntensity)
{
// Apply a filter
GPUImageSepiaFilter filter = new GPUImageSepiaFilter();
filter.Intensity = sepiaIntensity;
// Create image object to process
GPUImagePicture stillImageSource = new GPUImagePicture(image, true);
stillImageSource.AddTarget(filter);
filter.AddTarget(imageView);
// Launch the process
stillImageSource.ProcessImage();
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
stillCamera = new GPUImageStillCamera();
stillCamera.OutputImageOrientation = InterfaceOrientation;
pixellateFilter = new GPUImagePixellateFilter();
sepiaFilter = new GPUImageSepiaFilter();
stillCamera.AddTarget(pixellateFilter);
pixellateFilter.AddTarget(sepiaFilter);
sepiaFilter.AddTarget(imageView);
stillCamera.StartCameraCapture();
}
private void applySepiaFilter(float sepiaIntensity)
{
// Apply a filter
GPUImageSepiaFilter filter = new GPUImageSepiaFilter();
filter.Intensity = sepiaIntensity;
// Create image object to process
GPUImagePicture stillImageSource = new GPUImagePicture(image, true);
stillImageSource.AddTarget(filter);
filter.AddTarget(imageView);
// Launch the process
stillImageSource.ProcessImage();
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
videoCamera = new GPUImageVideoCamera(AVCaptureSession.Preset640x480, AVCaptureDevicePosition.Back);
videoCamera.OutputImageOrientation = InterfaceOrientation;
videoCamera.HorizontallyMirrorFrontFacingCamera = false;
videoCamera.HorizontallyMirrorRearFacingCamera = false;
pixellateFilter = new GPUImagePixellateFilter();
sepiaFilter = new GPUImageSepiaFilter();
videoCamera.AddTarget(pixellateFilter);
pixellateFilter.AddTarget(sepiaFilter);
sepiaFilter.AddTarget(imageView);
videoCamera.StartCameraCapture();
}
public override void ViewDidLoad ()
{
base.ViewDidLoad ();
stillCamera = new GPUImageStillCamera ();
stillCamera.OutputImageOrientation = InterfaceOrientation;
filter1 = GPUImageFilter.FromFragmentShaderFile ("Shader1");
filter2 = GPUImageFilter.FromFragmentShaderFile ("Shader2");
filter3 = new GPUImageSepiaFilter ();
stillCamera.AddTarget (topLeftImageView);
stillCamera.AddTarget (filter1);
filter1.AddTarget (topRightImageView);
stillCamera.AddTarget (filter2);
filter2.AddTarget (bottomLeftImageView);
stillCamera.AddTarget (filter3);
filter3.AddTarget (bottomRightImageView);
stillCamera.StartCameraCapture ();
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
stillCamera = new GPUImageStillCamera();
stillCamera.OutputImageOrientation = InterfaceOrientation;
filter1 = GPUImageFilter.FromFragmentShaderFile("Shader1");
filter2 = GPUImageFilter.FromFragmentShaderFile("Shader2");
filter3 = new GPUImageSepiaFilter();
stillCamera.AddTarget(topLeftImageView);
stillCamera.AddTarget(filter1);
filter1.AddTarget(topRightImageView);
stillCamera.AddTarget(filter2);
filter2.AddTarget(bottomLeftImageView);
stillCamera.AddTarget(filter3);
filter3.AddTarget(bottomRightImageView);
stillCamera.StartCameraCapture();
}
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;
}
}
