NVIDIA 2D Image And Signal Performance Primitives (NPP)  Version 11.2.1.*
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Functions
FilterGauss
Fixed Filters

Filters the image using a Gaussian filter kernel. More...

Functions

NppStatus  nppiFilterGauss_8u_C1R_Ctx (const Npp8u *pSrc, Npp32s nSrcStep, Npp8u *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize, NppStreamContext nppStreamCtx)
  Single channel 8-bit unsigned Gauss filter. More...
 
NppStatus  nppiFilterGauss_8u_C1R (const Npp8u *pSrc, Npp32s nSrcStep, Npp8u *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize)
 
NppStatus  nppiFilterGauss_8u_C3R_Ctx (const Npp8u *pSrc, Npp32s nSrcStep, Npp8u *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize, NppStreamContext nppStreamCtx)
  Three channel 8-bit unsigned Gauss filter. More...
 
NppStatus  nppiFilterGauss_8u_C3R (const Npp8u *pSrc, Npp32s nSrcStep, Npp8u *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize)
 
NppStatus  nppiFilterGauss_8u_C4R_Ctx (const Npp8u *pSrc, Npp32s nSrcStep, Npp8u *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize, NppStreamContext nppStreamCtx)
  Four channel 8-bit unsigned Gauss filter. More...
 
NppStatus  nppiFilterGauss_8u_C4R (const Npp8u *pSrc, Npp32s nSrcStep, Npp8u *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize)
 
NppStatus  nppiFilterGauss_8u_AC4R_Ctx (const Npp8u *pSrc, Npp32s nSrcStep, Npp8u *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize, NppStreamContext nppStreamCtx)
  Four channel 8-bit unsigned Gauss filter, ignoring alpha channel. More...
 
NppStatus  nppiFilterGauss_8u_AC4R (const Npp8u *pSrc, Npp32s nSrcStep, Npp8u *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize)
 
NppStatus  nppiFilterGauss_16u_C1R_Ctx (const Npp16u *pSrc, Npp32s nSrcStep, Npp16u *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize, NppStreamContext nppStreamCtx)
  Single channel 16-bit unsigned Gauss filter. More...
 
NppStatus  nppiFilterGauss_16u_C1R (const Npp16u *pSrc, Npp32s nSrcStep, Npp16u *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize)
 
NppStatus  nppiFilterGauss_16u_C3R_Ctx (const Npp16u *pSrc, Npp32s nSrcStep, Npp16u *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize, NppStreamContext nppStreamCtx)
  Three channel 16-bit unsigned Gauss filter. More...
 
NppStatus  nppiFilterGauss_16u_C3R (const Npp16u *pSrc, Npp32s nSrcStep, Npp16u *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize)
 
NppStatus  nppiFilterGauss_16u_C4R_Ctx (const Npp16u *pSrc, Npp32s nSrcStep, Npp16u *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize, NppStreamContext nppStreamCtx)
  Four channel 16-bit unsigned Gauss filter. More...
 
NppStatus  nppiFilterGauss_16u_C4R (const Npp16u *pSrc, Npp32s nSrcStep, Npp16u *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize)
 
NppStatus  nppiFilterGauss_16u_AC4R_Ctx (const Npp16u *pSrc, Npp32s nSrcStep, Npp16u *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize, NppStreamContext nppStreamCtx)
  Four channel 16-bit unsigned Gauss filter, ignoring alpha channel. More...
 
NppStatus  nppiFilterGauss_16u_AC4R (const Npp16u *pSrc, Npp32s nSrcStep, Npp16u *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize)
 
NppStatus  nppiFilterGauss_16s_C1R_Ctx (const Npp16s *pSrc, Npp32s nSrcStep, Npp16s *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize, NppStreamContext nppStreamCtx)
  Single channel 16-bit signed Gauss filter. More...
 
NppStatus  nppiFilterGauss_16s_C1R (const Npp16s *pSrc, Npp32s nSrcStep, Npp16s *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize)
 
NppStatus  nppiFilterGauss_16s_C3R_Ctx (const Npp16s *pSrc, Npp32s nSrcStep, Npp16s *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize, NppStreamContext nppStreamCtx)
  Three channel 16-bit signed Gauss filter. More...
 
NppStatus  nppiFilterGauss_16s_C3R (const Npp16s *pSrc, Npp32s nSrcStep, Npp16s *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize)
 
NppStatus  nppiFilterGauss_16s_C4R_Ctx (const Npp16s *pSrc, Npp32s nSrcStep, Npp16s *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize, NppStreamContext nppStreamCtx)
  Four channel 16-bit signed Gauss filter. More...
 
NppStatus  nppiFilterGauss_16s_C4R (const Npp16s *pSrc, Npp32s nSrcStep, Npp16s *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize)
 
NppStatus  nppiFilterGauss_16s_AC4R_Ctx (const Npp16s *pSrc, Npp32s nSrcStep, Npp16s *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize, NppStreamContext nppStreamCtx)
  Four channel 16-bit signed Gauss filter, ignoring alpha channel. More...
 
NppStatus  nppiFilterGauss_16s_AC4R (const Npp16s *pSrc, Npp32s nSrcStep, Npp16s *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize)
 
NppStatus  nppiFilterGauss_32f_C1R_Ctx (const Npp32f *pSrc, Npp32s nSrcStep, Npp32f *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize, NppStreamContext nppStreamCtx)
  Single channel 32-bit floating-point Gauss filter. More...
 
NppStatus  nppiFilterGauss_32f_C1R (const Npp32f *pSrc, Npp32s nSrcStep, Npp32f *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize)
 
NppStatus  nppiFilterGauss_32f_C3R_Ctx (const Npp32f *pSrc, Npp32s nSrcStep, Npp32f *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize, NppStreamContext nppStreamCtx)
  Three channel 32-bit floating-point Gauss filter. More...
 
NppStatus  nppiFilterGauss_32f_C3R (const Npp32f *pSrc, Npp32s nSrcStep, Npp32f *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize)
 
NppStatus  nppiFilterGauss_32f_C4R_Ctx (const Npp32f *pSrc, Npp32s nSrcStep, Npp32f *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize, NppStreamContext nppStreamCtx)
  Four channel 32-bit floating-point Gauss filter. More...
 
NppStatus  nppiFilterGauss_32f_C4R (const Npp32f *pSrc, Npp32s nSrcStep, Npp32f *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize)
 
NppStatus  nppiFilterGauss_32f_AC4R_Ctx (const Npp32f *pSrc, Npp32s nSrcStep, Npp32f *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize, NppStreamContext nppStreamCtx)
  Four channel 32-bit floating-point Gauss filter, ignoring alpha channel. More...
 
NppStatus  nppiFilterGauss_32f_AC4R (const Npp32f *pSrc, Npp32s nSrcStep, Npp32f *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiMaskSize eMaskSize)
 

Detailed Description

Filters the image using a Gaussian filter kernel.

Use FilterGaussAdvanced if you want to supply your own filter coefficients.

Note that all FilterGauss functions currently support mask sizes up to 15x15. Filter kernels for these functions are calculated using a sigma value of 0.4F + (mask width / 2) * 0.6F.

Common parameters for nppiFilterGauss functions include:

Parameters
pSrc Source-Image Pointer.
nSrcStep Source-Image Line Step.
pDst Destination-Image Pointer.
nDstStep Destination-Image Line Step.
oSizeROI Region-of-Interest (ROI).
eMaskSize Enumeration value specifying the mask size.
nppStreamCtx Application Managed Stream Context.
Returns
Image Data Related Error Codes, ROI Related Error Codes

Function Documentation

NppStatus nppiFilterGauss_16s_AC4R ( const Npp16s *  pSrc,
Npp32s  nSrcStep,
Npp16s *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize 
)
NppStatus nppiFilterGauss_16s_AC4R_Ctx ( const Npp16s *  pSrc,
Npp32s  nSrcStep,
Npp16s *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize,
NppStreamContext  nppStreamCtx 
)

Four channel 16-bit signed Gauss filter, ignoring alpha channel.

For common parameter descriptions, see Common parameters for nppiFilterGauss functions.

NppStatus nppiFilterGauss_16s_C1R ( const Npp16s *  pSrc,
Npp32s  nSrcStep,
Npp16s *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize 
)
NppStatus nppiFilterGauss_16s_C1R_Ctx ( const Npp16s *  pSrc,
Npp32s  nSrcStep,
Npp16s *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize,
NppStreamContext  nppStreamCtx 
)

Single channel 16-bit signed Gauss filter.

For common parameter descriptions, see Common parameters for nppiFilterGauss functions.

NppStatus nppiFilterGauss_16s_C3R ( const Npp16s *  pSrc,
Npp32s  nSrcStep,
Npp16s *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize 
)
NppStatus nppiFilterGauss_16s_C3R_Ctx ( const Npp16s *  pSrc,
Npp32s  nSrcStep,
Npp16s *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize,
NppStreamContext  nppStreamCtx 
)

Three channel 16-bit signed Gauss filter.

For common parameter descriptions, see Common parameters for nppiFilterGauss functions.

NppStatus nppiFilterGauss_16s_C4R ( const Npp16s *  pSrc,
Npp32s  nSrcStep,
Npp16s *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize 
)
NppStatus nppiFilterGauss_16s_C4R_Ctx ( const Npp16s *  pSrc,
Npp32s  nSrcStep,
Npp16s *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize,
NppStreamContext  nppStreamCtx 
)

Four channel 16-bit signed Gauss filter.

For common parameter descriptions, see Common parameters for nppiFilterGauss functions.

NppStatus nppiFilterGauss_16u_AC4R ( const Npp16u *  pSrc,
Npp32s  nSrcStep,
Npp16u *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize 
)
NppStatus nppiFilterGauss_16u_AC4R_Ctx ( const Npp16u *  pSrc,
Npp32s  nSrcStep,
Npp16u *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize,
NppStreamContext  nppStreamCtx 
)

Four channel 16-bit unsigned Gauss filter, ignoring alpha channel.

For common parameter descriptions, see Common parameters for nppiFilterGauss functions.

NppStatus nppiFilterGauss_16u_C1R ( const Npp16u *  pSrc,
Npp32s  nSrcStep,
Npp16u *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize 
)
NppStatus nppiFilterGauss_16u_C1R_Ctx ( const Npp16u *  pSrc,
Npp32s  nSrcStep,
Npp16u *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize,
NppStreamContext  nppStreamCtx 
)

Single channel 16-bit unsigned Gauss filter.

For common parameter descriptions, see Common parameters for nppiFilterGauss functions.

NppStatus nppiFilterGauss_16u_C3R ( const Npp16u *  pSrc,
Npp32s  nSrcStep,
Npp16u *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize 
)
NppStatus nppiFilterGauss_16u_C3R_Ctx ( const Npp16u *  pSrc,
Npp32s  nSrcStep,
Npp16u *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize,
NppStreamContext  nppStreamCtx 
)

Three channel 16-bit unsigned Gauss filter.

For common parameter descriptions, see Common parameters for nppiFilterGauss functions.

NppStatus nppiFilterGauss_16u_C4R ( const Npp16u *  pSrc,
Npp32s  nSrcStep,
Npp16u *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize 
)
NppStatus nppiFilterGauss_16u_C4R_Ctx ( const Npp16u *  pSrc,
Npp32s  nSrcStep,
Npp16u *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize,
NppStreamContext  nppStreamCtx 
)

Four channel 16-bit unsigned Gauss filter.

For common parameter descriptions, see Common parameters for nppiFilterGauss functions.

NppStatus nppiFilterGauss_32f_AC4R ( const Npp32f *  pSrc,
Npp32s  nSrcStep,
Npp32f *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize 
)
NppStatus nppiFilterGauss_32f_AC4R_Ctx ( const Npp32f *  pSrc,
Npp32s  nSrcStep,
Npp32f *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize,
NppStreamContext  nppStreamCtx 
)

Four channel 32-bit floating-point Gauss filter, ignoring alpha channel.

For common parameter descriptions, see Common parameters for nppiFilterGauss functions.

NppStatus nppiFilterGauss_32f_C1R ( const Npp32f *  pSrc,
Npp32s  nSrcStep,
Npp32f *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize 
)
NppStatus nppiFilterGauss_32f_C1R_Ctx ( const Npp32f *  pSrc,
Npp32s  nSrcStep,
Npp32f *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize,
NppStreamContext  nppStreamCtx 
)

Single channel 32-bit floating-point Gauss filter.

For common parameter descriptions, see Common parameters for nppiFilterGauss functions.

NppStatus nppiFilterGauss_32f_C3R ( const Npp32f *  pSrc,
Npp32s  nSrcStep,
Npp32f *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize 
)
NppStatus nppiFilterGauss_32f_C3R_Ctx ( const Npp32f *  pSrc,
Npp32s  nSrcStep,
Npp32f *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize,
NppStreamContext  nppStreamCtx 
)

Three channel 32-bit floating-point Gauss filter.

For common parameter descriptions, see Common parameters for nppiFilterGauss functions.

NppStatus nppiFilterGauss_32f_C4R ( const Npp32f *  pSrc,
Npp32s  nSrcStep,
Npp32f *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize 
)
NppStatus nppiFilterGauss_32f_C4R_Ctx ( const Npp32f *  pSrc,
Npp32s  nSrcStep,
Npp32f *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize,
NppStreamContext  nppStreamCtx 
)

Four channel 32-bit floating-point Gauss filter.

For common parameter descriptions, see Common parameters for nppiFilterGauss functions.

NppStatus nppiFilterGauss_8u_AC4R ( const Npp8u *  pSrc,
Npp32s  nSrcStep,
Npp8u *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize 
)
NppStatus nppiFilterGauss_8u_AC4R_Ctx ( const Npp8u *  pSrc,
Npp32s  nSrcStep,
Npp8u *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize,
NppStreamContext  nppStreamCtx 
)

Four channel 8-bit unsigned Gauss filter, ignoring alpha channel.

For common parameter descriptions, see Common parameters for nppiFilterGauss functions.

NppStatus nppiFilterGauss_8u_C1R ( const Npp8u *  pSrc,
Npp32s  nSrcStep,
Npp8u *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize 
)
NppStatus nppiFilterGauss_8u_C1R_Ctx ( const Npp8u *  pSrc,
Npp32s  nSrcStep,
Npp8u *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize,
NppStreamContext  nppStreamCtx 
)

Single channel 8-bit unsigned Gauss filter.

For common parameter descriptions, see Common parameters for nppiFilterGauss functions.

NppStatus nppiFilterGauss_8u_C3R ( const Npp8u *  pSrc,
Npp32s  nSrcStep,
Npp8u *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize 
)
NppStatus nppiFilterGauss_8u_C3R_Ctx ( const Npp8u *  pSrc,
Npp32s  nSrcStep,
Npp8u *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize,
NppStreamContext  nppStreamCtx 
)

Three channel 8-bit unsigned Gauss filter.

For common parameter descriptions, see Common parameters for nppiFilterGauss functions.

NppStatus nppiFilterGauss_8u_C4R ( const Npp8u *  pSrc,
Npp32s  nSrcStep,
Npp8u *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize 
)
NppStatus nppiFilterGauss_8u_C4R_Ctx ( const Npp8u *  pSrc,
Npp32s  nSrcStep,
Npp8u *  pDst,
Npp32s  nDstStep,
NppiSize  oSizeROI,
NppiMaskSize  eMaskSize,
NppStreamContext  nppStreamCtx 
)

Four channel 8-bit unsigned Gauss filter.

For common parameter descriptions, see Common parameters for nppiFilterGauss functions.