/// <summary>
/// Forward DCT, quantization and level shift part of the JPEG encoding.
/// Input is expected in 8x8 macro blocks and output is expected to be in 64x1
/// macro blocks.
/// </summary>
/// <param name="src">Source image.</param>
/// <param name="dst">Destination image</param>
/// <param name="QuantFwdTable">Forward quantization tables for JPEG encoding created using QuantInvTableInit()</param>
/// <param name="oSizeRoi">Roi size (in macro blocks?).</param>
public static void DCTQuantFwd8x8LS(NPPImage_8uC1 src, NPPImage_16sC1 dst, CudaDeviceVariable<ushort> QuantFwdTable, NppiSize oSizeRoi)
{
NppStatus status;
status = NPPNativeMethods.NPPi.ImageCompression.nppiDCTQuantFwd8x8LS_JPEG_8u16s_C1R(src.DevicePointer, src.Pitch, dst.DevicePointer, dst.Pitch, QuantFwdTable.DevicePointer, oSizeRoi);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nppiDCTQuantFwd8x8LS_JPEG_8u16s_C1R", status));
NPPException.CheckNppStatus(status, null);
}
/// <summary>
///
/// </summary>
/// <param name="size">Graph size</param>
public GraphCut4(NppiSize size)
{
_size = size;
int bufferSize = 0;
status = NPPNativeMethods.NPPi.ImageLabeling.nppiGraphcutGetSize(_size, ref bufferSize);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nppiGraphcutGetSize", status));
NPPException.CheckNppStatus(status, this);
_buffer = new CudaDeviceVariable<byte>(bufferSize);
_state = new NppiGraphcutState();
status = NPPNativeMethods.NPPi.ImageLabeling.nppiGraphcutInitAlloc(_size, ref _state, _buffer.DevicePointer);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nppiGraphcutInitAlloc", status));
NPPException.CheckNppStatus(status, this);
}
/// <summary>
/// Reduces this Rectangle by the specified amount.
/// </summary>
/// <param name="val"></param>
public void Deflate(NppiSize val)
{
Deflate(val.width, val.height);
}
/// <summary>
/// per element Add
/// </summary>
/// <param name="src"></param>
/// <param name="value"></param>
/// <returns></returns>
public static NppiRect Divide(NppiSize src, NppiRect value)
{
NppiRect ret = new NppiRect(value.x, value.y, src.width / value.width, src.height / value.height);
return ret;
}
/// <summary>
/// per element Add
/// </summary>
/// <param name="src"></param>
/// <param name="value"></param>
/// <returns></returns>
public static NppiRect Subtract(NppiSize src, NppiRect value)
{
NppiRect ret = new NppiRect(value.x, value.y, src.width - value.width, src.height - value.height);
return ret;
}
/// <summary>
/// Non-default constructor
/// </summary>
/// <param name="aPoint"></param>
/// <param name="aSize"></param>
public NppiRect(NppiPoint aPoint, NppiSize aSize)
{
x = aPoint.x;
y = aPoint.y;
width = aSize.width;
height = aSize.height;
}
/// <summary>
/// per element Divide
/// </summary>
/// <param name="src"></param>
/// <param name="value"></param>
/// <returns></returns>
public static NppiSize Divide(int src, NppiSize value)
{
NppiSize ret = new NppiSize(src / value.width, src / value.height);
return ret;
}
/// <summary>
/// per element Multiply
/// </summary>
/// <param name="src"></param>
/// <param name="value"></param>
/// <returns></returns>
public static NppiSize Multiply(int src, NppiSize value)
{
NppiSize ret = new NppiSize(src * value.width, src * value.height);
return ret;
}
/// <summary>
/// convolution filter.
/// </summary>
/// <param name="dst">Destination-Image</param>
/// <param name="pKernel">Pointer to the start address of the kernel coefficient array.<para/>
/// Coefficients are expected to be stored in reverse order.</param>
/// <param name="oKernelSize">Width and Height of the rectangular kernel.</param>
/// <param name="oAnchor">X and Y offsets of the kernel origin frame of reference</param>
public void Filter(NPPImage_32sC4 dst, CudaDeviceVariable<float> pKernel, NppiSize oKernelSize, NppiPoint oAnchor)
{
status = NPPNativeMethods.NPPi.Convolution.nppiFilter32f_32s_C4R(_devPtrRoi, _pitch, dst.DevicePointerRoi, dst.Pitch, _sizeRoi, pKernel.DevicePointer, oKernelSize, oAnchor);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nppiFilter32f_32s_C4R", status));
NPPException.CheckNppStatus(status, this);
}
/// <summary>
/// Creates a new NPPImage from allocated device ptr.
/// </summary>
/// <param name="devPtr">Already allocated device ptr.</param>
/// <param name="size">Image size</param>
/// <param name="pitch">Pitch / Line step</param>
public NPPImage_32sC4(CUdeviceptr devPtr, NppiSize size, int pitch)
: this(devPtr, size.width, size.height, pitch)
{
}
/// <summary>
/// Allocates new memory on device using NPP-Api.
/// </summary>
/// <param name="size">Image size</param>
public NPPImage_32sC4(NppiSize size)
: this(size.width, size.height)
{
}
/// <summary>
/// Result pixel value is the maximum of pixel values under the rectangular mask region.
/// </summary>
/// <param name="dest">Destination image</param>
/// <param name="oMaskSize">Width and Height of the neighborhood region for the local Avg operation.</param>
/// <param name="oAnchor">X and Y offsets of the kernel origin frame of reference w.r.t the source pixel.</param>
/// <param name="eBorderType">The border type operation to be applied at source image border boundaries.</param>
public void FilterMaxBorderA(NPPImage_8uC4 dest, NppiSize oMaskSize, NppiPoint oAnchor, NppiBorderType eBorderType)
{
status = NPPNativeMethods.NPPi.RankFilters.nppiFilterMaxBorder_8u_AC4R(_devPtr, _pitch, _sizeOriginal, _pointRoi, dest.DevicePointerRoi, dest.Pitch, _sizeRoi, oMaskSize, oAnchor, eBorderType);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nppiFilterMaxBorder_8u_AC4R", status));
NPPException.CheckNppStatus(status, this);
}
/// <summary>
/// Device scratch buffer size (in bytes) for FilterMedian, ignoring alpha channel.
/// </summary>
/// <returns></returns>
public int FilterMedianGetBufferHostSizeA(NppiSize oMaskSize)
{
uint bufferSize = 0;
status = NPPNativeMethods.NPPi.ImageMedianFilter.nppiFilterMedianGetBufferSize_8u_AC4R(_sizeRoi, oMaskSize, ref bufferSize);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nppiFilterMedianGetBufferSize_8u_AC4R", status));
NPPException.CheckNppStatus(status, this);
return (int)bufferSize; //We stay consistent with other GetBufferHostSize functions and convert to int.
}
/// <summary>
/// Result pixel value is the median of pixel values under the rectangular mask region, ignoring alpha channel.
/// </summary>
/// <param name="dst">Destination-Image</param>
/// <param name="oMaskSize">Width and Height of the neighborhood region for the local Median operation.</param>
/// <param name="oAnchor">X and Y offsets of the kernel origin frame of reference relative to the source pixel.</param>
/// <param name="buffer">Pointer to the user-allocated scratch buffer required for the Median operation.</param>
public void FilterMedianA(NPPImage_8uC4 dst, NppiSize oMaskSize, NppiPoint oAnchor, CudaDeviceVariable<byte> buffer)
{
int bufferSize = FilterMedianGetBufferHostSizeA(oMaskSize);
if (bufferSize > buffer.Size) throw new NPPException("Provided buffer is too small.");
status = NPPNativeMethods.NPPi.ImageMedianFilter.nppiFilterMedian_8u_AC4R(_devPtrRoi, _pitch, dst.DevicePointerRoi, dst.Pitch, _sizeRoi, oMaskSize, oAnchor, buffer.DevicePointer);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nppiFilterMedian_8u_AC4R", status));
NPPException.CheckNppStatus(status, this);
}
/// <summary>
/// Result pixel value is the median of pixel values under the rectangular mask region.
/// </summary>
/// <param name="dst">Destination-Image</param>
/// <param name="oMaskSize">Width and Height of the neighborhood region for the local Median operation.</param>
/// <param name="oAnchor">X and Y offsets of the kernel origin frame of reference relative to the source pixel.</param>
public void FilterMedian(NPPImage_8uC4 dst, NppiSize oMaskSize, NppiPoint oAnchor)
{
int bufferSize = FilterMedianGetBufferHostSize(oMaskSize);
CudaDeviceVariable<byte> buffer = new CudaDeviceVariable<byte>(bufferSize);
status = NPPNativeMethods.NPPi.ImageMedianFilter.nppiFilterMedian_8u_C4R(_devPtrRoi, _pitch, dst.DevicePointerRoi, dst.Pitch, _sizeRoi, oMaskSize, oAnchor, buffer.DevicePointer);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nppiFilterMedian_8u_C4R", status));
buffer.Dispose();
NPPException.CheckNppStatus(status, this);
}
/// <summary>
/// per element Substract
/// </summary>
/// <param name="src"></param>
/// <param name="value"></param>
/// <returns></returns>
public static NppiSize Subtract(int src, NppiSize value)
{
NppiSize ret = new NppiSize(src - value.width, src - value.height);
return ret;
}
/// <summary>
/// per element Multiply
/// </summary>
/// <param name="src"></param>
/// <param name="value"></param>
/// <returns></returns>
public static NppiSize Multiply(NppiSize src, int value)
{
NppiSize ret = new NppiSize(src.width * value, src.height * value);
return ret;
}
/// <summary>
/// Four channel 32-bit signed convolution filter with border control, ignoring alpha channel.<para/>
/// General purpose 2D convolution filter using floating-point weights with border control.<para/>
/// Pixels under the mask are multiplied by the respective weights in the mask
/// and the results are summed. Before writing the result pixel the sum is scaled
/// back via division by nDivisor. If any portion of the mask overlaps the source
/// image boundary the requested border type operation is applied to all mask pixels
/// which fall outside of the source image. <para/>
/// </summary>
/// <param name="dest">Destination image</param>
/// <param name="pKernel">Pointer to the start address of the kernel coefficient array. Coeffcients are expected to be stored in reverse order</param>
/// <param name="nKernelSize">Width and Height of the rectangular kernel.</param>
/// <param name="oAnchor">X and Y offsets of the kernel origin frame of reference relative to the source pixel.</param>
/// <param name="eBorderType">The border type operation to be applied at source image border boundaries.</param>
public void FilterBorderA(NPPImage_32sC4 dest, CudaDeviceVariable<float> pKernel, NppiSize nKernelSize, NppiPoint oAnchor, NppiBorderType eBorderType)
{
status = NPPNativeMethods.NPPi.FilterBorder32f.nppiFilterBorder32f_32s_AC4R(_devPtr, _pitch, _sizeOriginal, _pointRoi, dest.DevicePointerRoi, dest.Pitch, dest.SizeRoi, pKernel.DevicePointer, nKernelSize, oAnchor, eBorderType);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nppiFilterBorder32f_32s_AC4R", status));
NPPException.CheckNppStatus(status, this);
}
/// <summary>
/// per element Divide
/// </summary>
/// <param name="src"></param>
/// <param name="value"></param>
/// <returns></returns>
public static NppiSize Divide(NppiSize src, int value)
{
NppiSize ret = new NppiSize(src.width / value, src.height / value);
return ret;
}
/// <summary>
/// per element Substract
/// </summary>
/// <param name="src"></param>
/// <param name="value"></param>
/// <returns></returns>
public static NppiPoint Subtract(NppiPoint src, NppiSize value)
{
NppiPoint ret = new NppiPoint(src.x - value.width, src.y - value.height);
return ret;
}
/// <summary>
///
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
public bool Equals(NppiSize value)
{
bool ret = true;
ret &= this.width == value.width;
ret &= this.height == value.height;
return ret;
}
/// <summary>
/// per element Multiply
/// </summary>
/// <param name="src"></param>
/// <param name="value"></param>
/// <returns></returns>
public static NppiPoint Multiply(NppiPoint src, NppiSize value)
{
NppiPoint ret = new NppiPoint(src.x * value.width, src.y * value.height);
return ret;
}
/// <summary>
/// per element Add
/// </summary>
/// <param name="src"></param>
/// <param name="value"></param>
/// <returns></returns>
public static NppiRect Add(NppiSize src, NppiRect value)
{
NppiRect ret = new NppiRect(value.x, value.y, src.width + value.width, src.height + value.height);
return ret;
}
/// <summary>
/// per element Divide
/// </summary>
/// <param name="src"></param>
/// <param name="value"></param>
/// <returns></returns>
public static NppiPoint Divide(NppiPoint src, NppiSize value)
{
NppiPoint ret = new NppiPoint(src.x / value.width, src.y / value.height);
return ret;
}
/// <summary>
/// per element Add
/// </summary>
/// <param name="src"></param>
/// <param name="value"></param>
/// <returns></returns>
public static NppiRect Multiply(NppiSize src, NppiRect value)
{
NppiRect ret = new NppiRect(value.x, value.y, src.width * value.width, src.height * value.height);
return ret;
}
/// <summary>
/// per element Add
/// </summary>
/// <param name="src"></param>
/// <param name="value"></param>
/// <returns></returns>
public static NppiSize Add(NppiSize src, int value)
{
NppiSize ret = new NppiSize(src.width + value, src.height + value);
return ret;
}
/// <summary>
/// Enlarges this Rectangle by the specified amount.
/// </summary>
/// <param name="val"></param>
public void Inflate(NppiSize val)
{
Inflate(val.width, val.height);
}
/// <summary>
/// per element Add
/// </summary>
/// <param name="src"></param>
/// <param name="value"></param>
/// <returns></returns>
public static NppiSize Add(int src, NppiSize value)
{
NppiSize ret = new NppiSize(src + value.width, src + value.height);
return ret;
}
/// <summary>
/// per element Add
/// </summary>
/// <param name="src"></param>
/// <param name="value"></param>
/// <returns></returns>
public static NppiPoint Add(NppiPoint src, NppiSize value)
{
NppiPoint ret = new NppiPoint(src.x + value.width, src.y + value.height);
return ret;
}
/// <summary>
/// per element Substract
/// </summary>
/// <param name="src"></param>
/// <param name="value"></param>
/// <returns></returns>
public static NppiSize Subtract(NppiSize src, int value)
{
NppiSize ret = new NppiSize(src.width - value, src.height - value);
return ret;
}