public static extern NppStatus nppiFilterLowPass_8u_C4R( IntPtr pSrc, Npp32s nSrcStep, IntPtr pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize);
public static extern NppStatus nppiFilterLaplace_8u16s_C1R( IntPtr pSrc, Npp32s nSrcStep, IntPtr pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize);
public static extern NppStatus nppiFilterLowPassBorder_8u_C4R( IntPtr pSrc, Npp32s nSrcStep, NppiSize oSrcSize, NppiPoint oSrcOffset, IntPtr pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize, NppiBorderType eBorderType);
public static extern NppStatus nppiFilterHighPass_32f_C3R( IntPtr pSrc, Npp32s nSrcStep, IntPtr pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize);
public static extern NppStatus nppiFilterGauss_16u_C1R( IntPtr pSrc, Npp32s nSrcStep, IntPtr pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize);
public static extern NppStatus nppiFilterSobelVert_8s16s_C1R( IntPtr pSrc, Npp32s nSrcStep, IntPtr pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize);
public static extern NppStatus nppiFilterSobelVertSecondBorder_8u16s_C1R( IntPtr pSrc, Npp32s nSrcStep, NppiSize oSrcSize, NppiPoint oSrcOffset, IntPtr pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize, NppiBorderType eBorderType);
public static extern NppStatus nppiFilterSobelHorizSecond_32f_C1R( IntPtr pSrc, Npp32s nSrcStep, IntPtr pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize);