void initializeDevice()
{
try
{
_selectedDevice = comboBoxDevices.SelectedItem as ClooDevice;
if (_context != null)
{
_startProcessing = false;
// dispose previous context
_context.Dispose();
_kernels = null;
_context = null;
_sampler = null;
_queue = null;
image2.Source = null;
image3.Source = null;
image4.Source = null;
}
if (_selectedDevice != null)
{
// create context
_context = _selectedDevice.CreateContext();
_queue = _context.CreateCommandQueue();
_sampler = new ClooSampler(_context, false, ComputeImageAddressing.ClampToEdge, ComputeImageFiltering.Linear);
_kernels = ClooProgramViolaJones.Create(_context);
_haarObjectDetector = ClooHaarObjectDetector.CreateFaceDetector(_context, _queue, 640, 480);
_haarObjectDetector.ScalingFactor = 1.25f;
_haarObjectDetector.ScalingMode = ScalingMode.SmallerToLarger;
_haarObjectDetector.MinSize = new System.Drawing.Size(30, 30);
_haarObjectDetector.MaxSize = new System.Drawing.Size(100, 100);
Stopwatch stopwatch = new Stopwatch();
stopwatch.Reset();
stopwatch.Start();
_histogram = new ClooBuffer<uint>(_context, ComputeMemoryFlags.ReadWrite | ComputeMemoryFlags.AllocateHostPointer, 32 * 32 * 32);
_histogram2 = new ClooBuffer<uint>(_context, ComputeMemoryFlags.ReadWrite | ComputeMemoryFlags.AllocateHostPointer, 32 * 32 * 32);
_clooImageByteOriginal = ClooImage2DByteRgbA.CreateFromBitmap(_context, ComputeMemoryFlags.ReadWrite | ComputeMemoryFlags.UseHostPointer, _bitmapImage1);
_clooImageByteOriginal.WriteToDevice(_queue);
_clooImageByteGrayOriginal = ClooImage2DByteA.CreateFromBitmap(_context, ComputeMemoryFlags.ReadWrite | ComputeMemoryFlags.UseHostPointer, _bitmapImage1);
_clooImageByteGrayOriginal.WriteToDevice(_queue);
_clooImageByteResult = ClooImage2DByteRgbA.Create(_context, ComputeMemoryFlags.ReadWrite | ComputeMemoryFlags.UseHostPointer, _bitmapImage1.Width, _bitmapImage1.Height);
_clooImageByteResultA = ClooImage2DByteA.Create(_context, ComputeMemoryFlags.ReadWrite | ComputeMemoryFlags.UseHostPointer, _bitmapImage1.Width, _bitmapImage1.Height);
_clooImageFloatOriginal = ClooImage2DFloatRgbA.Create(_context, ComputeMemoryFlags.ReadWrite | ComputeMemoryFlags.UseHostPointer, _bitmapImage1.Width, _bitmapImage1.Height);
_clooImageFloatGrayOriginal = ClooImage2DFloatA.Create(_context, ComputeMemoryFlags.ReadWrite | ComputeMemoryFlags.UseHostPointer, _bitmapImage1.Width, _bitmapImage1.Height);
_clooImageFloatTemp1 = ClooImage2DFloatRgbA.Create(_context, ComputeMemoryFlags.ReadWrite | ComputeMemoryFlags.UseHostPointer, _bitmapImage1.Width, _bitmapImage1.Height);
_clooImageFloatTemp2 = ClooImage2DFloatRgbA.Create(_context, ComputeMemoryFlags.ReadWrite | ComputeMemoryFlags.UseHostPointer, _bitmapImage1.Width, _bitmapImage1.Height);
_clooImageFloatATemp1 = ClooImage2DFloatA.Create(_context, ComputeMemoryFlags.ReadWrite | ComputeMemoryFlags.UseHostPointer, _bitmapImage1.Width, _bitmapImage1.Height);
_clooImageFloatATemp2 = ClooImage2DFloatA.Create(_context, ComputeMemoryFlags.ReadWrite | ComputeMemoryFlags.UseHostPointer, _bitmapImage1.Width, _bitmapImage1.Height);
_clooImageFloatIntegral = ClooImage2DFloatA.Create(_context, ComputeMemoryFlags.ReadWrite | ComputeMemoryFlags.UseHostPointer, _bitmapImage1.Width + 1, _bitmapImage1.Height + 1);
_clooImageUIntIntegral = ClooImage2DUIntA.Create(_context, ComputeMemoryFlags.ReadWrite | ComputeMemoryFlags.UseHostPointer, _bitmapImage1.Width + 1, _bitmapImage1.Height + 1);
_clooImageUIntIntegralSquare = ClooImage2DUIntA.Create(_context, ComputeMemoryFlags.ReadWrite | ComputeMemoryFlags.UseHostPointer, _bitmapImage1.Width + 1, _bitmapImage1.Height + 1);
_queue.Finish();
label1.Content = stopwatch.ElapsedMilliseconds + " ms - original " + _bitmapImage1.Width + "x" + _bitmapImage1.Height;
_startProcessing = true;
Update();
Update();
}
}
catch (Exception ex)
{
// show exception
MessageBox.Show(ex.Message, ex.GetType().ToString(), MessageBoxButton.OK, MessageBoxImage.Stop);
}
}
/// <summary>
/// Denormalize float image
/// </summary>
/// <param name="queue">cloo command queue</param>
/// <param name="image">image</param>
public void Denormalize(ClooCommandQueue queue, ClooImage2DFloatRgbA image)
{
Denormalize(queue, image, image);
}
/// <summary>
/// Calculates the difference between two images (e.g. for background subtraction)
/// </summary>
/// <param name="queue">cloo command queue</param>
/// <param name="source">image source</param>
/// <param name="dest">image destination</param>
public void Diff(ClooCommandQueue queue, ClooImage2DFloatRgbA source1, ClooImage2DFloatRgbA source2, ClooImage2DFloatA dest)
{
if (queue == null) throw new ArgumentNullException("queue");
if (source1 == null) throw new ArgumentNullException("source1");
if (source2 == null) throw new ArgumentNullException("source2");
if (dest == null) throw new ArgumentNullException("dest");
if ((source2.Width > source1.Width) || (source2.Height > source1.Height)) throw new ArgumentException("Second image (" + dest.Width + "x" + dest.Height + ") must have at least the same size as the first image (" + source1.Width + "x" + source1.Height + ")");
if ((source1.Width > dest.Width) || (source1.Height > dest.Height)) throw new ArgumentException("Destination image (" + dest.Width + "x" + dest.Height + ") must have at least the same size as the source image (" + source1.Width + "x" + source1.Height + ")");
KernelImageFloatDiff.SetArguments(source1, source2, dest);
queue.Execute(KernelImageFloatDiff, null, new long[] { source2.Width, source2.Height }, null, null);
dest.Modified = true;
dest.Normalized = false;
}
/// <summary>
/// Clamps minimum and maximum value
/// </summary>
/// <param name="queue">cloo command queue</param>
/// <param name="image">image</param>
/// <param name="minValue">minimum value</param>
/// <param name="maxValue">maximum value</param>
public void Clamp(ClooCommandQueue queue, ClooImage2DFloatRgbA image, float minValue, float maxValue)
{
Clamp(queue, image, image, minValue, maxValue);
}
/// <summary>
/// Denormalize float image
/// </summary>
/// <param name="queue">cloo command queue</param>
/// <param name="source">image source</param>
/// <param name="dest">image destination</param>
public void Denormalize(ClooCommandQueue queue, ClooImage2DFloatRgbA source, ClooImage2DFloatRgbA dest)
{
if (queue == null) throw new ArgumentNullException("queue");
if (source == null) throw new ArgumentNullException("source");
if (dest == null) throw new ArgumentNullException("dest");
if ((source.Width > dest.Width) || (source.Height > dest.Height)) throw new ArgumentException("Destination image (" + dest.Width + "x" + dest.Height + ") must have at least the same size as the source image (" + source.Width + "x" + source.Height + ")");
KernelImageFloatMultiplyValue.SetArguments(source, dest, 255f);
queue.Execute(KernelImageFloatMultiplyValue, null, new long[] { source.Width, source.Height }, null, null);
dest.Modified = true;
dest.Normalized = false;
}
/// <summary>
/// Adds a constant value to all float values in an image
/// </summary>
/// <param name="queue">cloo command queue</param>
/// <param name="image">image</param>
/// <param name="value">value to add</param>
public void AddValue(ClooCommandQueue queue, ClooImage2DFloatRgbA image, float value)
{
AddValue(queue, image, image, value);
}
/// <summary>
/// Box blur image
/// </summary>
/// <param name="queue">cloo command queue</param>
/// <param name="source">image source</param>
/// <param name="dest">image destination</param>
/// <param name="sampler">sampler to be used for image reading</param>
/// <param name="offset">offset</param>
public void BoxBlur(ClooCommandQueue queue, ClooImage2DFloatRgbA source, ClooImage2DFloatRgbA dest, ClooSampler sampler, int offset)
{
if (queue == null) throw new ArgumentNullException("queue");
if (source == null) throw new ArgumentNullException("source");
if (dest == null) throw new ArgumentNullException("dest");
if ((source.Width > dest.Width) || (source.Height > dest.Height)) throw new ArgumentException("Destination image (" + dest.Width + "x" + dest.Height + ") must have at least the same size as the source image (" + source.Width + "x" + source.Height + ")");
KernelImageFloatBoxBlur.SetArguments(source, dest, sampler, offset);
queue.Execute(KernelImageFloatBoxBlur, null, new long[] { source.Width, source.Height }, null, null);
dest.Modified = true;
dest.Normalized = source.Normalized;
}
/// <summary>
/// Swaps two channels in an image
/// </summary>
/// <param name="queue">cloo command queue</param>
/// <param name="source">source image</param>
/// <param name="dest">destination image</param>
/// <param name="offsetFrom">first channel offset (0..3)</param>
/// <param name="offsetTo">second channel offset (0..3)</param>
public void SwapChannel(ClooCommandQueue queue, ClooImage2DFloatRgbA source, ClooImage2DFloatRgbA dest, byte offsetFrom, byte offsetTo)
{
if (queue == null) throw new ArgumentNullException("queue");
if (source == null) throw new ArgumentNullException("source");
if (dest == null) throw new ArgumentNullException("dest");
if (offsetFrom > 3) throw new ArgumentOutOfRangeException("offsetFrom", String.Format("offset must be between 0..3 but was {0}", offsetFrom));
if (offsetTo > 3) throw new ArgumentOutOfRangeException("offsetTo", String.Format("offset must be between 0..3 but was {0}", offsetTo));
if ((source.Width > dest.Width) || (source.Height > dest.Height)) throw new ArgumentException("Destination image (" + dest.Width + "x" + dest.Height + ") must have at least the same size as the source image (" + source.Width + "x" + source.Height + ")");
KernelImageFloatSwapChannel.SetArguments(source, dest, offsetFrom, offsetTo);
queue.Execute(KernelImageFloatSwapChannel, null, new long[] { source.Width, source.Height }, null, null);
dest.Modified = true;
dest.Normalized = source.Normalized;
}
/// <summary>
/// Makes all values absolute
/// </summary>
/// <param name="queue">cloo command queue</param>
/// <param name="source">image</param>
public void Abs(ClooCommandQueue queue, ClooImage2DFloatRgbA image)
{
Abs(queue, image, image);
}
/// <summary>
/// Sets channel of a RGBA image
/// </summary>
/// <param name="queue">cloo command queue</param>
/// <param name="image">image</param>
/// <param name="mask">mask image</param>
/// <param name="offset">offset (0..3)</param>
/// <param name="value">constant mask value</param>
public void SetChannel(ClooCommandQueue queue, ClooImage2DFloatRgbA image, byte offset, byte value)
{
SetChannel(queue, image, image, offset, value);
}
/// <summary>
/// Sets a constant value to all float values in an image
/// </summary>
/// <param name="queue">cloo command queue</param>
/// <param name="image">image</param>
/// <param name="value">value to set</param>
public void SetValue(ClooCommandQueue queue, ClooImage2DFloatRgbA image, float value)
{
if (queue == null) throw new ArgumentNullException("queue");
if (image == null) throw new ArgumentNullException("image");
KernelImageFloatSetValue.SetArguments(image, value);
queue.Execute(KernelImageFloatSetValue, null, new long[] { image.Width, image.Height }, null, null);
image.Modified = true;
}
/// <summary>
/// Sets channel of a RGBA image
/// </summary>
/// <param name="queue">cloo command queue</param>
/// <param name="image">image</param>
/// <param name="mask">mask image</param>
/// <param name="offset">offset (0..3)</param>
public void SetChannel(ClooCommandQueue queue, ClooImage2DFloatRgbA image, ClooImage2DFloatA mask, byte offset)
{
SetChannel(queue, image, mask, image, offset);
}
/// <summary>
/// RGB to HSL image
/// </summary>
/// <param name="queue">cloo command queue</param>
/// <param name="source">image source</param>
/// <param name="dest">image destination</param>
public void RgbToHsl(ClooCommandQueue queue, ClooImage2DFloatRgbA source, ClooImage2DFloatRgbA dest)
{
if (queue == null) throw new ArgumentNullException("queue");
if (source == null) throw new ArgumentNullException("source");
if (dest == null) throw new ArgumentNullException("dest");
if ((source.Width > dest.Width) || (source.Height > dest.Height)) throw new ArgumentException("Destination image (" + dest.Width + "x" + dest.Height + ") must have at least the same size as the source image (" + source.Width + "x" + source.Height + ")");
if (source.Normalized)
{
// use normalized kernel
KernelImageFloatRgbToHslNorm.SetArguments(source, dest);
queue.Execute(KernelImageFloatRgbToHslNorm, null, new long[] { source.Width, source.Height }, null, null);
}
else
{
// use normal kernel
KernelImageFloatRgbToHsl.SetArguments(source, dest);
queue.Execute(KernelImageFloatRgbToHsl, null, new long[] { source.Width, source.Height }, null, null);
}
dest.Modified = true;
dest.Normalized = source.Normalized;
}
/// <summary>
/// Multiplies a constant value to all float values in an image
/// </summary>
/// <param name="queue">cloo command queue</param>
/// <param name="image">image</param>
/// <param name="factor">factor to multiply</param>
public void MultiplyValue(ClooCommandQueue queue, ClooImage2DFloatRgbA image, float factor)
{
MultiplyValue(queue, image, image, factor);
}
/// <summary>
/// Create histogram backprojection for RGB float image
/// </summary>
/// <param name="queue">cloo command queue</param>
/// <param name="source">image source</param>
/// <param name="dest">image destination (for propability map)</param>
/// <param name="srcHistogram">source histogram uint buffer (must be at least bins^3 in length)</param>
/// <param name="frameHistogram">frame histogram uint buffer (must be at least bins^3 in length)</param>
/// <param name="bins">number of bins</param>
/// <param name="startX">start from X coordinate</param>
/// <param name="startY">start from Y coordinate</param>
/// <param name="width">width</param>
/// <param name="height">height</param>
public void HistogramBackprojection(ClooCommandQueue queue, ClooImage2DByteRgbA source, ClooImage2DFloatRgbA dest,
ClooBuffer<uint> srcHistogram, ClooBuffer<uint> frameHistogram, byte bins, int startX = 0, int startY = 0,
int width = 0, int height = 0)
{
if (queue == null) throw new ArgumentNullException("queue");
if (source == null) throw new ArgumentNullException("source");
if (dest == null) throw new ArgumentNullException("dest");
if (srcHistogram == null) throw new ArgumentNullException("srcHistogram");
if (frameHistogram == null) throw new ArgumentNullException("frameHistogram");
if (bins < 2) throw new ArgumentException("bins must be at least 2", "bins");
int length = bins * bins * bins;
if (srcHistogram.Count < length) throw new ArgumentException("Buffer length for histogram must be at least " + length, "srcHistogram");
if (frameHistogram.Count < length) throw new ArgumentException("Buffer length for histogram must be at least " + length, "frameHistogram");
if (width == 0) width = source.Width - startX;
if (height == 0) height = source.Height - startY;
if (width < 0) throw new ArgumentOutOfRangeException("width");
if (height < 0) throw new ArgumentOutOfRangeException("height");
KernelImageByteRgbHistogramFloatBP.SetArguments(source, dest, srcHistogram, frameHistogram, bins, (uint)startX, (uint)startY);
queue.Execute(KernelImageByteRgbHistogramFloatBP, null, new long[] { width, height }, null, null);
dest.Modified = true;
dest.Normalized = true;
}
/// <summary>
/// Flip image Y coordinate
/// </summary>
/// <param name="queue">cloo command queue</param>
/// <param name="source">image source</param>
/// <param name="dest">image destination</param>
public void FlipY(ClooCommandQueue queue, ClooImage2DFloatRgbA source, ClooImage2DFloatRgbA dest)
{
if (queue == null) throw new ArgumentNullException("queue");
if (source == null) throw new ArgumentNullException("source");
if (dest == null) throw new ArgumentNullException("dest");
if (source == dest) throw new ArgumentException("Flipping kernel is not designed to run inline therefore source and destination must be different images");
if ((source.Width > dest.Width) || (source.Height > dest.Height)) throw new ArgumentException("Destination image (" + dest.Width + "x" + dest.Height + ") must have at least the same size as the source image (" + source.Width + "x" + source.Height + ")");
KernelImageFloatFlipY.SetArguments(source, dest);
queue.Execute(KernelImageFloatFlipY, null, new long[] { source.Width, source.Height }, null, null);
dest.Modified = true;
dest.Normalized = source.Normalized;
}
