CIColorControls colorCtrls; //CIFilter
UIImage AdjustImage(UIImage image)
{
if (colorCtrls == null)
{
colorCtrls = new CIColorControls()
{
Image = CIImage.FromCGImage(image.CGImage)
}
}
;
else
{
colorCtrls.Image = CIImage.FromCGImage(image.CGImage);
}
if (context == null)
{
context = CIContext.FromOptions(null);
}
colorCtrls.Brightness = sliderB.Value;
colorCtrls.Saturation = sliderS.Value;
colorCtrls.Contrast = sliderC.Value;
using (var outputImage = colorCtrls.OutputImage) {
var result = context.CreateCGImage(outputImage, outputImage.Extent);
return(UIImage.FromImage(result));
}
}
public static NSImage Tint(this NSImage image, NSColor tint)
{
var colorGenerator = new CIConstantColorGenerator
{
Color = CIColor.FromCGColor(tint.CGColor)
};
var colorFilter = new CIColorControls
{
Image = (CIImage)colorGenerator.ValueForKey(CIFilterOutputKey.Image),
Saturation = 3f,
Brightness = 0.35f,
Contrast = 1f
};
var monochromeFilter = new CIColorMonochrome
{
Image = CIImage.FromCGImage(image.CGImage),
Color = CIColor.FromRgb(0.75f, 0.75f, 0.75f),
Intensity = 1f
};
var compositingFilter = new CIMultiplyCompositing
{
Image = (CIImage)colorFilter.ValueForKey(CIFilterOutputKey.Image),
BackgroundImage = (CIImage)monochromeFilter.ValueForKey(CIFilterOutputKey.Image)
};
var outputImage = (CIImage)compositingFilter.ValueForKey(CIFilterOutputKey.Image);
var extent = outputImage.Extent;
var newsize = Size.Truncate(extent.Size.ToEto());
if (newsize.IsEmpty)
{
return(image);
}
var tintedImage = new NSImage(newsize.ToNS());
tintedImage.LockFocus();
try
{
var graphics = NSGraphicsContext.CurrentContext.GraphicsPort;
var ciContext = CIContext.FromContext(graphics, new CIContextOptions {
UseSoftwareRenderer = true
});
ciContext.DrawImage(outputImage, extent, extent);
}
finally
{
tintedImage.UnlockFocus();
}
var newrep = tintedImage.Representations()[0];
newrep.Size = image.Size;
tintedImage.Size = image.Size;
return(tintedImage);
}
void ApplyFilters()
{
float hue = hueSlider.Value;
float saturation = saturationSlider.Value;
float brightness = brightnessSlider.Value;
// Apply effects to image
CIImage result = null;
using (var colorControlsFilter = new CIColorControls()) {
colorControlsFilter.Image = baseCIImage;
colorControlsFilter.Saturation = saturation;
colorControlsFilter.Brightness = brightness;
result = colorControlsFilter.OutputImage;
}
using (var hueAdjustFilter = new CIHueAdjust()) {
hueAdjustFilter.Image = result;
hueAdjustFilter.Angle = hue;
result = hueAdjustFilter.OutputImage;
}
using (var context = CIContext.FromOptions(null)) {
using (CGImage cgImage = context.CreateCGImage(result, result.Extent)) {
if (imageView.Image != null)
{
imageView.Image.CGImage.Dispose();
imageView.Image.Dispose();
}
imageView.Image = UIImage.FromImage(cgImage);
}
}
result.Dispose();
}
void HandleValueChanged(object sender, EventArgs e)
{ // use the low-res version
if (colorCtrls == null)
{
colorCtrls = new CIColorControls()
{
Image = CIImage.FromCGImage(sourceImage.CGImage),
}
}
;
colorCtrls.Brightness = sliderBrightness.Value;
colorCtrls.Saturation = sliderSaturation.Value;
colorCtrls.Contrast = sliderContrast.Value;
var output = colorCtrls.OutputImage;
var context = CIContext.FromOptions(null);
var result = context.CreateCGImage(output, output.Extent);
imageView.Image = UIImage.FromImage(result);
// UNCOMMENT to save the image each time it is generated
// var someImage = imageView.Image;
// someImage.SaveToPhotosAlbum((image, error) => {
// // Called on completion...
// //new UIAlertView("Saved", "Photo saved to Camera Roll", null, "OK", null).Show ();
// Console.WriteLine("CIColorControls image saved to Photos");
// });
}
}
CIColorControls colorCtrls; //CIFilter
void HandleValueChanged(object sender, EventArgs e)
{ // use the low-res version
if (colorCtrls == null)
{
colorCtrls = new CIColorControls()
{
Image = CIImage.FromCGImage(sourceImage.CGImage)
}
}
;
else
{
colorCtrls.Image = CIImage.FromCGImage(sourceImage.CGImage);
}
if (context == null)
{
context = CIContext.FromOptions(null);
}
colorCtrls.Brightness = sliderBrightness.Value;
colorCtrls.Saturation = sliderSaturation.Value;
colorCtrls.Contrast = sliderContrast.Value;
using (var outputImage = colorCtrls.OutputImage) {
var result = context.CreateCGImage(outputImage, outputImage.Extent);
imageView.Image = UIImage.FromImage(result);
}
}
void DarkenImage()
{
var img = image.Image;
var ciImage = new CIImage(img);
var hueAdjust = new CIHueAdjust(); // first filter
hueAdjust.Image = ciImage;
hueAdjust.Angle = 2.094f;
var sepia = new CISepiaTone(); // second filter
sepia.Image = hueAdjust.OutputImage; // output from last filter, input to this one
sepia.Intensity = 0.3f;
CIFilter color = new CIColorControls()
{ // third filter
Saturation = 2,
Brightness = 1,
Contrast = 3,
Image = sepia.OutputImage // output from last filter, input to this one
};
var output = color.OutputImage;
var context = CIContext.FromOptions(null);
// ONLY when CreateCGImage is called do all the effects get rendered
var cgimage = context.CreateCGImage(output, output.Extent);
var ui = UIImage.FromImage(cgimage);
image.Image = ui;
}
//Filters
async void ApplyFilter(FilterType filterType)
{
if (currentFilterType == filterType)
{
return;
}
var filterImage = Element as FilterImage;
var handler = GetHandler(filterImage.OriginalSource);
using (UIImage originalImage = await handler.LoadImageAsync(filterImage.OriginalSource))
{
switch (filterType)
{
case FilterType.NoFilter:
filteredImage = UIImage.FromImage(originalImage.CGImage, originalImage.CurrentScale, originalImage.Orientation);
break;
case FilterType.BlackAndWhite:
var blackAndWhiteEffect = new CIPhotoEffectMono()
{
Image = new CoreImage.CIImage(originalImage)
};
filteredImage = ApplyEffect(blackAndWhiteEffect, originalImage);
break;
case FilterType.Hifi:
var hifiControls = new CIColorControls()
{
Image = new CoreImage.CIImage(originalImage),
Brightness = .5F, // Min: 0 Max: 2
Saturation = 1.2F, // Min: -1 Max: 1
Contrast = 2.5F // Min: 0 Max: 4
};
filteredImage = ApplyEffect(hifiControls, originalImage);
break;
case FilterType.Vintage:
var vintageEffect = new CIPhotoEffectChrome()
{
Image = new CoreImage.CIImage(originalImage)
};
filteredImage = ApplyEffect(vintageEffect, originalImage);
break;
case FilterType.Saturated:
var saturatedEffect = new GPUImageSaturationFilter();
saturatedEffect.Saturation = 2.5f;
var imageFiltered = saturatedEffect.CreateFilteredImage(originalImage);
filteredImage = imageFiltered;
break;
}
Control.Image = filteredImage;
currentFilterType = filterType;
}
}
public static void Colourize(NSView control, Color color, Action drawAction)
{
var size = control.Frame.Size;
if (size.Width <= 0 || size.Height <= 0)
{
return;
}
var image = new NSImage(size);
image.LockFocusFlipped(control.IsFlipped);
drawAction();
image.UnlockFocus();
var ciImage = CIImage.FromCGImage(image.CGImage);
SD.SizeF realSize;
if (control.RespondsToSelector(selConvertSizeToBacking))
{
realSize = control.ConvertSizeToBacking(size);
}
else
{
realSize = control.ConvertSizeToBase(size);
}
if (control.IsFlipped)
{
var affineTransform = new NSAffineTransform();
affineTransform.Translate(0, realSize.Height);
affineTransform.Scale(1, -1);
var filter1 = new CIAffineTransform();
filter1.Image = ciImage;
filter1.SetValueForKey(affineTransform, CIInputTransform);
ciImage = filter1.ValueForKey(CIOutputImage) as CIImage;
}
var filter2 = new CIColorControls();
filter2.SetDefaults();
filter2.Image = ciImage;
filter2.Saturation = 0.0f;
ciImage = filter2.ValueForKey(CIOutputImage) as CIImage;
var filter3 = new CIColorMatrix();
filter3.SetDefaults();
filter3.Image = ciImage;
filter3.RVector = new CIVector(0, color.R, 0);
filter3.GVector = new CIVector(color.G, 0, 0);
filter3.BVector = new CIVector(0, 0, color.B);
ciImage = filter3.ValueForKey(CIOutputImage) as CIImage;
ciImage.Draw(new SD.RectangleF(SD.PointF.Empty, size), new SD.RectangleF(SD.PointF.Empty, realSize), NSCompositingOperation.SourceOver, 1);
}
public void End()
{
if (_image == null)
{
return;
}
_image.UnlockFocus();
var cgImage = _image.CGImage;
var ciImage = CIImage.FromCGImage(cgImage);
#pragma warning disable CS0618 // Image => InputImage in Xamarin.Mac 6.6
var filter2 = new CIColorControls();
filter2.SetDefaults();
filter2.Image = ciImage;
filter2.Saturation = 0.0f;
ciImage = (CIImage)filter2.ValueForKey(CIOutputImage);
var filter3 = new CIColorMatrix();
filter3.SetDefaults();
filter3.Image = ciImage;
#pragma warning restore CS0618
var cgColor = Color.ToCG();
var components = cgColor.Components;
if (components.Length >= 3)
{
filter3.RVector = new CIVector(0, components[0], 0);
filter3.GVector = new CIVector(components[1], 0, 0);
filter3.BVector = new CIVector(0, 0, components[2]);
}
else if (components.Length >= 1)
{
// grayscale
filter3.RVector = new CIVector(0, components[0], 0);
filter3.GVector = new CIVector(components[0], 0, 0);
filter3.BVector = new CIVector(0, 0, components[0]);
}
filter3.AVector = new CIVector(0, 0, 0, cgColor.Alpha);
ciImage = (CIImage)filter3.ValueForKey(CIOutputImage);
// create separate context so we can force using the software renderer, which is more than fast enough for this
var ciContext = CIContext.FromContext(NSGraphicsContext.CurrentContext.GraphicsPort, new CIContextOptions {
UseSoftwareRenderer = true
});
ciContext.DrawImage(ciImage, new CGRect(CGPoint.Empty, _image.Size), new CGRect(0, 0, cgImage.Width, cgImage.Height));
ciImage.Dispose();
ciContext.Dispose();
filter2.Dispose();
filter3.Dispose();
}
public CIImage ColorControls()
{
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
};
return(colorCtrls.OutputImage);
}
public static void Colourize(NSView control, Color color, Action drawAction)
{
var size = control.Frame.Size;
if (size.Width <= 0 || size.Height <= 0)
{
return;
}
var image = new NSImage(size);
image.LockFocusFlipped(!control.IsFlipped);
drawAction();
image.UnlockFocus();
var ciImage = CIImage.FromCGImage(image.CGImage);
CGSize realSize;
if (control.RespondsToSelector(selConvertSizeToBacking))
{
realSize = control.ConvertSizeToBacking(size);
}
else
{
realSize = control.ConvertSizeToBase(size);
}
var filter2 = new CIColorControls();
filter2.SetDefaults();
filter2.Image = ciImage;
filter2.Saturation = 0.0f;
ciImage = (CIImage)filter2.ValueForKey(CIOutputImage);
var filter3 = new CIColorMatrix();
filter3.SetDefaults();
filter3.Image = ciImage;
filter3.RVector = new CIVector(0, color.R, 0);
filter3.GVector = new CIVector(color.G, 0, 0);
filter3.BVector = new CIVector(0, 0, color.B);
filter3.AVector = new CIVector(0, 0, 0, color.A);
ciImage = (CIImage)filter3.ValueForKey(CIOutputImage);
// create separate context so we can force using the software renderer, which is more than fast enough for this
var ciContext = CIContext.FromContext(NSGraphicsContext.CurrentContext.GraphicsPort, new CIContextOptions {
UseSoftwareRenderer = true
});
ciContext.DrawImage(ciImage, new CGRect(CGPoint.Empty, size), new CGRect(CGPoint.Empty, realSize));
}
public static void ApplyGreyscale(string imagePath, UIImageView imgview)
{
var uiimage = UIImage.FromFile (imagePath);
var ciimage = new CIImage (uiimage);
var greyscale = new CIColorControls();
greyscale.Image = ciimage;
greyscale.Saturation = 0f;
var output = greyscale.OutputImage;
var context = CIContext.FromOptions(null);
var cgimage = context.CreateCGImage (output, output.Extent);
var ui = UIImage.FromImage (cgimage);
imgview.Image = ui;
}
/// <summary>
/// Purchaseable feature. This function can't be called until the
/// user has purchased the Greyscale Filter in-app product.
/// </summary>
public static void ApplyGreyscale(string imagePath, UIImageView imgview)
{
var uiimage = UIImage.FromFile(imagePath);
var ciimage = new CIImage(uiimage);
var greyscale = new CIColorControls();
greyscale.Image = ciimage;
greyscale.Saturation = 0f;
var output = greyscale.OutputImage;
var context = CIContext.FromOptions(null);
var cgimage = context.CreateCGImage(output, output.Extent);
var ui = UIImage.FromImage(cgimage);
imgview.Image = ui;
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
displayCup = UIImage.FromFile("CupCloseUp.jpg");
colorContrast = new CIColorControls()
{
Image = CIImage.FromCGImage(displayCup.CGImage),
};
colorContrast.Contrast = 1;
var output = colorContrast.OutputImage;
var context = CIContext.FromOptions(null);
var result = context.CreateCGImage(output, output.Extent);
imvDisplayChoice.Image = UIImage.FromImage(result);
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
cup = UIImage.FromFile("CupCloseUp_0.jpg");
imvDisplayChoice.Image = cup;
btnChoice.Hidden = false;
contrastCtrls = new CIColorControls()
{
Image = CIImage.FromCGImage(cup.CGImage),
};
contrastCtrls.Contrast = 4;
var output = contrastCtrls.OutputImage;
var context = CIContext.FromOptions(null);
var result = context.CreateCGImage(output, output.Extent);
imvDisplayChoice.Image = UIImage.FromImage(result);
}
public static UIImage AdjustBrightnessSaturationAndContrast(this UIImage image, float brightness = 0, float saturation = 1, float contrast = 1)
{
CIColorControls colorCtrls = new CIColorControls () {
Image = CIImage.FromCGImage (image.CGImage),
};
// Clamp values
saturation = Math.Min (Math.Max (0, saturation), 2);
brightness = Math.Min (Math.Max (-1, brightness), 1);
contrast = Math.Min (Math.Max (0, contrast), 4);
colorCtrls.Brightness = brightness;
colorCtrls.Saturation = saturation;
colorCtrls.Contrast = contrast;
var output = colorCtrls.OutputImage;
var context = CIContext.FromOptions (null);
var result = context.CreateCGImage (output, output.Extent);
return UIImage.FromImage(result);
}
public static UIImage AdjustBrightnessSaturationAndContrast(this UIImage image, float brightness = 0, float saturation = 1, float contrast = 1)
{
CIColorControls colorCtrls = new CIColorControls()
{
Image = CIImage.FromCGImage(image.CGImage),
};
// Clamp values
saturation = Math.Min(Math.Max(0, saturation), 2);
brightness = Math.Min(Math.Max(-1, brightness), 1);
contrast = Math.Min(Math.Max(0, contrast), 4);
colorCtrls.Brightness = brightness;
colorCtrls.Saturation = saturation;
colorCtrls.Contrast = contrast;
var output = colorCtrls.OutputImage;
var context = CIContext.FromOptions(null);
var result = context.CreateCGImage(output, output.Extent);
return(UIImage.FromImage(result));
}
void DarkenImage()
{
var img = image.Image;
var ciImage = new CIImage(img);
var hueAdjust = new CIHueAdjust(); // first filter
hueAdjust.Image = ciImage;
hueAdjust.Angle = 2.094f;
var sepia = new CISepiaTone(); // second filter
sepia.Image = hueAdjust.OutputImage; // output from last filter, input to this one
sepia.Intensity = 0.3f;
CIFilter color = new CIColorControls()
{ // third filter
Saturation = 2,
Brightness = 1,
Contrast = 3,
Image = sepia.OutputImage // output from last filter, input to this one
};
var output = color.OutputImage;
var context = CIContext.FromOptions(null);
// ONLY when CreateCGImage is called do all the effects get rendered
var cgimage = context.CreateCGImage(output, output.Extent);
var ui = UIImage.FromImage(cgimage);
image.Image = ui;
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
inActiveTimer = NSTimer.CreateRepeatingScheduledTimer((4.0), delegate {
inActive.Play("schudden1.mp3");
});
sourceImage = UIImage.FromFile("drinken_filter.jpg");
imvDisplayChoice.Image = UIImage.FromFile("beker.jpg");
btnTrigger.TouchUpInside += (sender, e) => {
inActiveTimer.Dispose();
active.Play("drinken2.mp3");
NSTimer.CreateScheduledTimer(TimeSpan.FromSeconds(6.0), delegate {
active.Play("drinken2.mp3", () =>
{
//youChoose.Play("dorst.mp3");
});
});
//hid the button.
btnTrigger.Hidden = true;
imvDisplayChoice.Image = sourceImage;
Console.WriteLine("btn pushed");
//puts the picture in an instance to lay a filter on top of it
colorBrightness = new CIColorControls()
{
Image = CIImage.FromCGImage(sourceImage.CGImage),
};
int count = 0;
timer = NSTimer.CreateRepeatingScheduledTimer(TimeSpan.FromMilliseconds(10), delegate {
count++;
if (count <= 6)
{
colorBrightness.Brightness += 0.1f;
Console.WriteLine("increase");
}
else if (count <= 12)
{
colorBrightness.Brightness -= 0.1f;
Console.WriteLine("decrease");
}
else
{
count = 0;
}
Console.WriteLine(count);
Console.WriteLine(colorBrightness.Brightness);
//this will transform the image
var output = colorBrightness.OutputImage;
var context = CIContext.FromOptions(null);
var result = context.CreateCGImage(output, output.Extent);
//display result
imvDisplayChoice.Image = UIImage.FromImage(result);
});
//triggers a timer that displays the old image and makes button visable again
NSTimer.CreateScheduledTimer(TimeSpan.FromSeconds(12.0), delegate {
youChoose.Play("Dorst.mp3", () => {
timer.Dispose();
imvDisplayChoice.Image = UIImage.FromFile("beker.jpg");
btnTrigger.Hidden = false;
inActiveTimer = NSTimer.CreateRepeatingScheduledTimer((4.0), delegate {
inActive.Play("schudden1.mp3");
});
});
});
};
// De SetSatusBarHidden lijkt niet te werken
UIApplication.SharedApplication.SetStatusBarHidden(true, true);
UIApplication.SharedApplication.IdleTimerDisabled = true;
}
public static UIImage ApplyFilter(this UIImage image, float brightness, float saturation, float contrast)
{
var colorCtrls = new CIColorControls { Image = CIImage.FromCGImage (image.CGImage) };
var context = CIContext.FromOptions (null);
// set the values
colorCtrls.Brightness = brightness;
colorCtrls.Saturation = saturation;
colorCtrls.Contrast = contrast;
// do the transformation
var outputImage = colorCtrls.OutputImage;
var result = context.CreateCGImage (outputImage, outputImage.Extent);
return UIImage.FromImage (result);
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
btnTrigger.Hidden = false;
bekerImage = UIImage.FromFile("bekerDicht.jpg");
imvDisplayChoice.Image = bekerImage;
colorContrast = new CIColorControls()
{
Image = CIImage.FromCGImage(bekerImage.CGImage),
};
int count = 0;
//default contrast waarde is 1
colorContrast.Contrast = 1;
btnUnPushedTimer = NSTimer.CreateRepeatingScheduledTimer(TimeSpan.FromSeconds(1.0), delegate {
count++;
Console.WriteLine(colorContrast.Contrast);
Console.WriteLine(count);
if (count <= 6)
{
colorContrast.Contrast += 0.1f;
Console.WriteLine("increase");
}
else if (count <= 12)
{
colorContrast.Contrast -= 0.1f;
Console.WriteLine("decrease");
}
else
{
count = 0;
}
var output = colorContrast.OutputImage;
var context = CIContext.FromOptions(null);
var result = context.CreateCGImage(output, output.Extent);
imvDisplayChoice.Image = UIImage.FromImage(result);
});
//een plaatje wisselt met contrast van laag naar hoog en weer terug.
//als het contrast van laag naar hoog gaat hoor je een geluidje! (slurp geluid)
btnTrigger.TouchUpInside += (sender, e) => {
//De knop word hidden
btnTrigger.Hidden = true;
//als er op de knop gedrukt is gaat het contrast om hoog en blijft het plaatje staan in het hoogste contrast.
//tegelijker tijd word de keuze uit gesprooken
//als de keuze uit gesprooken is word het scherm voor 5 seconde zwart (zo donker mogelijk).
};
}
public CIImage ColorControls ()
{
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
};
return colorCtrls.OutputImage;
}
private BlackImagesTheme()
{
saturationFilter = new CIColorControls();
}
private BlackImagesTheme()
{
saturationFilter = new CIColorControls ();
}
UIImage AdjustImage (UIImage image) {
if (colorCtrls == null)
colorCtrls = new CIColorControls () { Image = CIImage.FromCGImage (image.CGImage) };
else
colorCtrls.Image = CIImage.FromCGImage(image.CGImage);
colorCtrls.Brightness = sliderB.Value;
colorCtrls.Saturation = sliderS.Value;
colorCtrls.Contrast = sliderC.Value;
var output = colorCtrls.OutputImage;
var context = CIContext.FromOptions (null);
var result = context.CreateCGImage (output, output.Extent);
return UIImage.FromImage(result);
}
CIColorControls colorCtrls; //CIFilter
void HandleValueChanged (object sender, EventArgs e)
{ // use the low-res version
if (colorCtrls == null)
colorCtrls = new CIColorControls () { Image = CIImage.FromCGImage (sourceImage.CGImage) };
else
colorCtrls.Image = CIImage.FromCGImage(sourceImage.CGImage);
if (context == null)
context = CIContext.FromOptions (null);
colorCtrls.Brightness = sliderBrightness.Value;
colorCtrls.Saturation = sliderSaturation.Value;
colorCtrls.Contrast = sliderContrast.Value;
using (var outputImage = colorCtrls.OutputImage) {
var result = context.CreateCGImage (outputImage, outputImage.Extent);
imageView.Image = UIImage.FromImage (result);
}
}
void HandleValueChanged(object sender, EventArgs e)
{
// use the low-res version
if (colorCtrls == null)
colorCtrls = new CIColorControls () {
Image = CIImage.FromCGImage (sourceImage.CGImage),
};
colorCtrls.Brightness = sliderBrightness.Value;
colorCtrls.Saturation = sliderSaturation.Value;
colorCtrls.Contrast = sliderContrast.Value;
var output = colorCtrls.OutputImage;
var context = CIContext.FromOptions (null);
var result = context.CreateCGImage (output, output.Extent);
imageView.Image = UIImage.FromImage(result);
// UNCOMMENT to save the image each time it is generated
// var someImage = imageView.Image;
// someImage.SaveToPhotosAlbum((image, error) => {
// // Called on completion...
// //new UIAlertView("Saved", "Photo saved to Camera Roll", null, "OK", null).Show ();
// Console.WriteLine("CIColorControls image saved to Photos");
// });
}
void ApplyFilters()
{
float hue = hueSlider.Value;
float saturation = saturationSlider.Value;
float brightness = brightnessSlider.Value;
// Apply effects to image
CIImage result = null;
using(var colorControlsFilter = new CIColorControls ()) {
colorControlsFilter.Image = baseCIImage;
colorControlsFilter.Saturation = saturation;
colorControlsFilter.Brightness = brightness;
result = colorControlsFilter.OutputImage;
}
using(var hueAdjustFilter = new CIHueAdjust ()) {
hueAdjustFilter.Image = result;
hueAdjustFilter.Angle = hue;
result = hueAdjustFilter.OutputImage;
}
using (var context = CIContext.FromOptions (null)) {
using (CGImage cgImage = context.CreateCGImage (result, result.Extent)) {
if (imageView.Image != null) {
imageView.Image.CGImage.Dispose ();
imageView.Image.Dispose ();
}
imageView.Image = UIImage.FromImage (cgImage);
}
}
result.Dispose ();
}