/// <summary>
		/// Low pass filter.
		/// </summary>
		/// <param name="dst">Destination-Image</param>
		/// <param name="eMaskSize">Enumeration value specifying the mask size.</param>
		/// <param name="eBorderType">The border type operation to be applied at source image border boundaries.</param>
		public void FilterLowPassBorderA(NPPImage_8uC4 dst, MaskSize eMaskSize, NppiBorderType eBorderType)
		{
			status = NPPNativeMethods.NPPi.FixedFilters.nppiFilterLowPassBorder_8u_AC4R(_devPtr, _pitch, _sizeOriginal, _pointRoi, dst.DevicePointerRoi, dst.Pitch, _sizeRoi, eMaskSize, eBorderType);
			Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nppiFilterLowPassBorder_8u_AC4R", status));
			NPPException.CheckNppStatus(status, this);
		}

		/// <summary>
		/// High pass filter. Not affecting Alpha.
		/// </summary>
		/// <param name="dst">Destination-Image</param>
		/// <param name="eMaskSize">Enumeration value specifying the mask size.</param>
		public void FilterHighPassA(NPPImage_8uC4 dst, MaskSize eMaskSize)
		{
			status = NPPNativeMethods.NPPi.FixedFilters.nppiFilterHighPass_8u_AC4R(_devPtrRoi, _pitch, dst.DevicePointerRoi, dst.Pitch, _sizeRoi, eMaskSize);
			Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nppiFilterHighPass_8u_AC4R", status));
			NPPException.CheckNppStatus(status, this);
		}

		/// <summary>
		/// Filters the image using a second cross derivative Sobel filter kernel with border control.
		/// </summary>
		/// <param name="dest">Destination image</param>
		/// <param name="eMaskSize">Enumeration value specifying the mask size</param>
		/// <param name="eBorderType">The border type operation to be applied at source image border boundaries.</param>
		public void FilterSobelCrossBorder(NPPImage_16sC1 dest, MaskSize eMaskSize, NppiBorderType eBorderType)
		{
			status = NPPNativeMethods.NPPi.FilterSobelCrossBorder.nppiFilterSobelCrossBorder_8u16s_C1R(_devPtr, _pitch, _sizeOriginal, _pointRoi, dest.DevicePointerRoi, dest.Pitch, dest.SizeRoi, eMaskSize, eBorderType);
			Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nppiFilterSobelCrossBorder_8u16s_C1R", status));
			NPPException.CheckNppStatus(status, this);
		}

 /// <summary>
 /// 3 channel 8-bit unsigned packed RGB to optional 1 channel 16-bit signed X (vertical), Y (horizontal), magnitude, 
 /// and/or 32-bit floating point angle gradient vectors with user selectable fixed mask size and distance method with border control.
 /// </summary>
 /// <param name="destX">X vector destination_image_pointer</param>
 /// <param name="destY">Y vector destination_image_pointer.</param>
 /// <param name="destMag">magnitude destination_image_pointer.</param>
 /// <param name="destAngle">angle destination_image_pointer.</param>
 /// <param name="eMaskSize">fixed filter mask size to use.</param>
 /// <param name="eNorm">gradient distance method to use.</param>
 /// <param name="eBorderType">The border type operation to be applied at source image border boundaries.</param>
 public void GradientVectorSobelBorder(NPPImage_16sC1 destX, NPPImage_16sC1 destY, NPPImage_16sC1 destMag, NPPImage_32fC1 destAngle, MaskSize eMaskSize, NppiNorm eNorm, NppiBorderType eBorderType)
 {
     status = NPPNativeMethods.NPPi.GradientVectorSobelBorder.nppiGradientVectorSobelBorder_8u16s_C3C1R(_devPtr, _pitch, _sizeOriginal, _pointRoi, destX.DevicePointerRoi, destX.Pitch, destY.DevicePointerRoi, destY.Pitch, destMag.DevicePointerRoi, destMag.Pitch, destAngle.DevicePointerRoi, destAngle.Pitch, _sizeRoi, eMaskSize, eNorm, eBorderType);
     Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nppiGradientVectorSobelBorder_8u16s_C3C1R", status));
     NPPException.CheckNppStatus(status, this);
 }

		/// <summary>
		/// second derivative, vertical Sobel filter.
		/// </summary>
		/// <param name="dst">Destination-Image</param>
		/// <param name="eMaskSize">Enumeration value specifying the mask size.</param>
		public void FilterSobelVertSecond(NPPImage_16sC1 dst, MaskSize eMaskSize)
		{
			status = NPPNativeMethods.NPPi.FixedFilters.nppiFilterSobelVertSecond_8u16s_C1R(_devPtrRoi, _pitch, dst.DevicePointerRoi, dst.Pitch, _sizeRoi, eMaskSize);
			Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nppiFilterSobelVertSecond_8u16s_C1R", status));
			NPPException.CheckNppStatus(status, this);
		}