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private Copy ( |
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| src | ||
| dst | ||
| mask | ||
| return | void | |
/// <summary>
/// Create a clone of this GpuImage
/// </summary>
/// <param name="stream">Use a Stream to call the function asynchronously (non-blocking) or null to call the function synchronously (blocking).</param>
/// <returns>A clone of this GpuImage</returns>
public GpuImage <TColor, TDepth> Clone()
{
GpuImage <TColor, TDepth> result = new GpuImage <TColor, TDepth>(Size);
GpuInvoke.Copy(_ptr, result, IntPtr.Zero);
return(result);
}
/// <summary>
/// Makes multi-channel array out of several single-channel arrays
/// </summary>
///<param name="gpuMats">
///An array of single channel GpuMat where each item
///in the array represent a single channel of the GpuMat
///</param>
/// <param name="stream">Use a Stream to call the function asynchronously (non-blocking) or null to call the function synchronously (blocking).</param>
public void MergeFrom(GpuMat <TDepth>[] gpuMats, Stream stream)
{
Debug.Assert(NumberOfChannels == gpuMats.Length, "Number of channels does not agrees with the length of gpuMats");
//If single channel, perform a copy
if (NumberOfChannels == 1)
{
if (stream == null)
{
GpuInvoke.Copy(gpuMats[0].Ptr, _ptr, IntPtr.Zero);
}
else
{
stream.Copy <TDepth>(gpuMats[0], this);
}
}
//handle multiple channels
Size size = Size;
IntPtr[] ptrs = new IntPtr[gpuMats.Length];
for (int i = 0; i < gpuMats.Length; i++)
{
Debug.Assert(gpuMats[i].Size == size, "Size mismatch");
ptrs[i] = gpuMats[i].Ptr;
}
GCHandle handle = GCHandle.Alloc(ptrs, GCHandleType.Pinned);
GpuInvoke.Merge(handle.AddrOfPinnedObject(), _ptr, stream);
handle.Free();
}
///<summary>
///Split current Image into an array of gray scale images where each element
///in the array represent a single color channel of the original image
///</summary>
///<param name="gpuMats">
///An array of single channel GpuMat where each item
///in the array represent a single channel of the original GpuMat
///</param>
/// <param name="stream">Use a Stream to call the function asynchronously (non-blocking) or null to call the function synchronously (blocking).</param>
public void SplitInto(GpuMat <TDepth>[] gpuMats, Stream stream)
{
Debug.Assert(NumberOfChannels == gpuMats.Length, "Number of channels does not agrees with the length of gpuMats");
if (NumberOfChannels == 1)
{
//If single channel, return a copy
if (stream == null)
{
GpuInvoke.Copy(_ptr, gpuMats[0], IntPtr.Zero);
}
else
{
stream.Copy <TDepth>(this, gpuMats[0]);
}
}
else
{
//handle multiple channels
Size size = Size;
IntPtr[] ptrs = new IntPtr[gpuMats.Length];
for (int i = 0; i < ptrs.Length; i++)
{
Debug.Assert(gpuMats[i].Size == size, "Size mismatch");
ptrs[i] = gpuMats[i].Ptr;
}
GCHandle handle = GCHandle.Alloc(ptrs, GCHandleType.Pinned);
GpuInvoke.Split(_ptr, handle.AddrOfPinnedObject(), stream);
handle.Free();
}
}
/// <summary>
/// Convert the source image to the current image, if the size are different, the current image will be a resized version of the srcImage.
/// </summary>
/// <typeparam name="TSrcColor">The color type of the source image</typeparam>
/// <typeparam name="TSrcDepth">The color depth of the source image</typeparam>
/// <param name="srcImage">The sourceImage</param>
public void ConvertFrom <TSrcColor, TSrcDepth>(GpuImage <TSrcColor, TSrcDepth> srcImage)
where TSrcColor : struct, IColor
where TSrcDepth : new()
{
if (!Size.Equals(srcImage.Size))
{ //if the size of the source image do not match the size of the current image
using (GpuImage <TSrcColor, TSrcDepth> tmp = srcImage.Resize(Size, Emgu.CV.CvEnum.INTER.CV_INTER_LINEAR, null))
{
ConvertFrom(tmp);
return;
}
}
if (typeof(TColor) == typeof(TSrcColor))
{
#region same color
if (typeof(TDepth) == typeof(TSrcDepth)) //same depth
{
GpuInvoke.Copy(srcImage.Ptr, Ptr, IntPtr.Zero);
}
else //different depth
{
if (typeof(TDepth) == typeof(Byte) && typeof(TSrcDepth) != typeof(Byte))
{
double[] minVal, maxVal;
Point[] minLoc, maxLoc;
srcImage.MinMax(out minVal, out maxVal, out minLoc, out maxLoc);
double min = minVal[0];
double max = maxVal[0];
for (int i = 1; i < minVal.Length; i++)
{
min = Math.Min(min, minVal[i]);
max = Math.Max(max, maxVal[i]);
}
double scale = 1.0, shift = 0.0;
if (max > 255.0 || min < 0)
{
scale = (max == min) ? 0.0 : 255.0 / (max - min);
shift = (scale == 0) ? min : -min * scale;
}
GpuInvoke.ConvertTo(srcImage.Ptr, Ptr, scale, shift);
}
else
{
GpuInvoke.ConvertTo(srcImage.Ptr, Ptr, 1.0, 0.0);
}
}
#endregion
}
else
{
#region different color
if (typeof(TDepth) == typeof(TSrcDepth))
{ //same depth
ConvertColor(srcImage.Ptr, Ptr, typeof(TSrcColor), typeof(TColor), Size, null);
}
else
{ //different depth
using (GpuImage <TSrcColor, TDepth> tmp = srcImage.Convert <TSrcColor, TDepth>()) //convert depth
ConvertColor(tmp.Ptr, Ptr, typeof(TSrcColor), typeof(TColor), Size, null);
}
#endregion
}
}