NVIDIA Performance Primitives (NPP)  Version 10.0
Mean_StdDev
Statistical Operations

Primitives for computing both the arithmetic mean and the standard deviation of an image. More...

Mean_StdDev

Given an image $pSrc$ with width $W$ and height $H$, the mean and the standard deviation will be computed as

\[Mean = \frac{1}{W\cdot H}\sum_{j=0}^{H-1}\sum_{i=0}^{W-1}pSrc(j,i)\]

\[StdDev = \sqrt{\frac{1}{W\cdot H}\sum_{j=0}^{H-1}\sum_{i=0}^{W-1}(pSrc(j,i)-Mean)^2}\]

The Mean_StdDev primitives require additional scratch buffer for computations.

Common parameters for nppiMean_StdDev functions include:

Parameters
pSrcSource-Image Pointer.
nSrcStepSource-Image Line Step.
oSizeROIRegion-of-Interest (ROI).
pMaskMask-Image Pointer.
nMaskStepMask-Image Line Step.
nCOIChannel_of_Interest Number.
pDeviceBufferPointer to the required device memory allocation, Scratch Buffer and Host Pointer Use nppiMeanStdDevGetBufferHostSize_8u_C1R to determine the minium number of bytes required.
pMeanPointer to the computed mean.
pStdDevPointer to the computed standard deviation.
Returns
Image Data Related Error Codes, ROI Related Error Codes, or NPP_COI_ERROR if an invalid channel of interest is specified.
NppStatus nppiMean_StdDev_8u_C1R (const Npp8u *pSrc, int nSrcStep, NppiSize oSizeROI, Npp8u *pDeviceBuffer, Npp64f *pMean, Npp64f *pStdDev)
 One-channel 8-bit unsigned image Mean_StdDev. More...
 
NppStatus nppiMean_StdDev_8s_C1R (const Npp8s *pSrc, int nSrcStep, NppiSize oSizeROI, Npp8u *pDeviceBuffer, Npp64f *pMean, Npp64f *pStdDev)
 One-channel 8-bit signed image Mean_StdDev. More...
 
NppStatus nppiMean_StdDev_16u_C1R (const Npp16u *pSrc, int nSrcStep, NppiSize oSizeROI, Npp8u *pDeviceBuffer, Npp64f *pMean, Npp64f *pStdDev)
 One-channel 16-bit unsigned image Mean_StdDev. More...
 
NppStatus nppiMean_StdDev_32f_C1R (const Npp32f *pSrc, int nSrcStep, NppiSize oSizeROI, Npp8u *pDeviceBuffer, Npp64f *pMean, Npp64f *pStdDev)
 One-channel 32-bit floating point image Mean_StdDev. More...
 
NppStatus nppiMean_StdDev_8u_C1MR (const Npp8u *pSrc, int nSrcStep, const Npp8u *pMask, int nMaskStep, NppiSize oSizeROI, Npp8u *pDeviceBuffer, Npp64f *pMean, Npp64f *pStdDev)
 Masked one-channel 8-bit unsigned image Mean_StdDev. More...
 
NppStatus nppiMean_StdDev_8s_C1MR (const Npp8s *pSrc, int nSrcStep, const Npp8u *pMask, int nMaskStep, NppiSize oSizeROI, Npp8u *pDeviceBuffer, Npp64f *pMean, Npp64f *pStdDev)
 Masked one-channel 8-bit signed image Mean_StdDev. More...
 
NppStatus nppiMean_StdDev_16u_C1MR (const Npp16u *pSrc, int nSrcStep, const Npp8u *pMask, int nMaskStep, NppiSize oSizeROI, Npp8u *pDeviceBuffer, Npp64f *pMean, Npp64f *pStdDev)
 Masked one-channel 16-bit unsigned image Mean_StdDev. More...
 
NppStatus nppiMean_StdDev_32f_C1MR (const Npp32f *pSrc, int nSrcStep, const Npp8u *pMask, int nMaskStep, NppiSize oSizeROI, Npp8u *pDeviceBuffer, Npp64f *pMean, Npp64f *pStdDev)
 Masked one-channel 32-bit floating point image Mean_StdDev. More...
 

Channel Mean_StdDev

See Channel-of-Interest API.

NppStatus nppiMean_StdDev_8u_C3CR (const Npp8u *pSrc, int nSrcStep, NppiSize oSizeROI, int nCOI, Npp8u *pDeviceBuffer, Npp64f *pMean, Npp64f *pStdDev)
 Three-channel 8-bit unsigned image Mean_StdDev affecting only single channel. More...
 
NppStatus nppiMean_StdDev_8s_C3CR (const Npp8s *pSrc, int nSrcStep, NppiSize oSizeROI, int nCOI, Npp8u *pDeviceBuffer, Npp64f *pMean, Npp64f *pStdDev)
 Three-channel 8-bit signed image Mean_StdDev affecting only single channel. More...
 
NppStatus nppiMean_StdDev_16u_C3CR (const Npp16u *pSrc, int nSrcStep, NppiSize oSizeROI, int nCOI, Npp8u *pDeviceBuffer, Npp64f *pMean, Npp64f *pStdDev)
 Three-channel 16-bit unsigned image Mean_StdDev affecting only single channel. More...
 
NppStatus nppiMean_StdDev_32f_C3CR (const Npp32f *pSrc, int nSrcStep, NppiSize oSizeROI, int nCOI, Npp8u *pDeviceBuffer, Npp64f *pMean, Npp64f *pStdDev)
 Three-channel 32-bit floating point image Mean_StdDev affecting only single channel. More...
 
NppStatus nppiMean_StdDev_8u_C3CMR (const Npp8u *pSrc, int nSrcStep, const Npp8u *pMask, int nMaskStep, NppiSize oSizeROI, int nCOI, Npp8u *pDeviceBuffer, Npp64f *pMean, Npp64f *pStdDev)
 Masked three-channel 8-bit unsigned image Mean_StdDev. More...
 
NppStatus nppiMean_StdDev_8s_C3CMR (const Npp8s *pSrc, int nSrcStep, const Npp8u *pMask, int nMaskStep, NppiSize oSizeROI, int nCOI, Npp8u *pDeviceBuffer, Npp64f *pMean, Npp64f *pStdDev)
 Masked three-channel 8-bit signed image Mean_StdDev. More...
 
NppStatus nppiMean_StdDev_16u_C3CMR (const Npp16u *pSrc, int nSrcStep, const Npp8u *pMask, int nMaskStep, NppiSize oSizeROI, int nCOI, Npp8u *pDeviceBuffer, Npp64f *pMean, Npp64f *pStdDev)
 Masked three-channel 16-bit unsigned image Mean_StdDev. More...
 
NppStatus nppiMean_StdDev_32f_C3CMR (const Npp32f *pSrc, int nSrcStep, const Npp8u *pMask, int nMaskStep, NppiSize oSizeROI, int nCOI, Npp8u *pDeviceBuffer, Npp64f *pMean, Npp64f *pStdDev)
 Masked three-channel 32-bit floating point image Mean_StdDev. More...
 

MeanStdDevGetBufferHostSize

Companion primitives for computing the device buffer size (in bytes) required by the Mean_StdDev primitives.

NppStatus nppiMeanStdDevGetBufferHostSize_8u_C1R (NppiSize oSizeROI, int *hpBufferSize)
 Buffer size for nppiMean_StdDev_8u_C1R. More...
 
NppStatus nppiMeanStdDevGetBufferHostSize_8s_C1R (NppiSize oSizeROI, int *hpBufferSize)
 Buffer size for nppiMean_StdDev_8s_C1R. More...
 
NppStatus nppiMeanStdDevGetBufferHostSize_16u_C1R (NppiSize oSizeROI, int *hpBufferSize)
 Buffer size for nppiMean_StdDev_16u_C1R. More...
 
NppStatus nppiMeanStdDevGetBufferHostSize_32f_C1R (NppiSize oSizeROI, int *hpBufferSize)
 Buffer size for nppiMean_StdDev_32f_C1R. More...
 
NppStatus nppiMeanStdDevGetBufferHostSize_8u_C1MR (NppiSize oSizeROI, int *hpBufferSize)
 Buffer size for nppiMean_StdDev_8u_C1MR. More...
 
NppStatus nppiMeanStdDevGetBufferHostSize_8s_C1MR (NppiSize oSizeROI, int *hpBufferSize)
 Buffer size for nppiMean_StdDev_8s_C1MR. More...
 
NppStatus nppiMeanStdDevGetBufferHostSize_16u_C1MR (NppiSize oSizeROI, int *hpBufferSize)
 Buffer size for nppiMean_StdDev_16u_C1MR. More...
 
NppStatus nppiMeanStdDevGetBufferHostSize_32f_C1MR (NppiSize oSizeROI, int *hpBufferSize)
 Buffer size for nppiMean_StdDev_32f_C1MR. More...
 
NppStatus nppiMeanStdDevGetBufferHostSize_8u_C3CR (NppiSize oSizeROI, int *hpBufferSize)
 Buffer size for nppiMean_StdDev_8u_C3CR. More...
 
NppStatus nppiMeanStdDevGetBufferHostSize_8s_C3CR (NppiSize oSizeROI, int *hpBufferSize)
 Buffer size for nppiMean_StdDev_8s_C3CR. More...
 
NppStatus nppiMeanStdDevGetBufferHostSize_16u_C3CR (NppiSize oSizeROI, int *hpBufferSize)
 Buffer size for nppiMean_StdDev_16u_C3CR. More...
 
NppStatus nppiMeanStdDevGetBufferHostSize_32f_C3CR (NppiSize oSizeROI, int *hpBufferSize)
 Buffer size for nppiMean_StdDev_32f_C3CR. More...
 
NppStatus nppiMeanStdDevGetBufferHostSize_8u_C3CMR (NppiSize oSizeROI, int *hpBufferSize)
 Buffer size for nppiMean_StdDev_8u_C3CMR. More...
 
NppStatus nppiMeanStdDevGetBufferHostSize_8s_C3CMR (NppiSize oSizeROI, int *hpBufferSize)
 Buffer size for nppiMean_StdDev_8s_C3CMR. More...
 
NppStatus nppiMeanStdDevGetBufferHostSize_16u_C3CMR (NppiSize oSizeROI, int *hpBufferSize)
 Buffer size for nppiMean_StdDev_16u_C3CMR. More...
 
NppStatus nppiMeanStdDevGetBufferHostSize_32f_C3CMR (NppiSize oSizeROI, int *hpBufferSize)
 Buffer size for nppiMean_StdDev_32f_C3CMR. More...
 

Detailed Description

Primitives for computing both the arithmetic mean and the standard deviation of an image.

Function Documentation

NppStatus nppiMean_StdDev_16u_C1MR ( const Npp16u *  pSrc,
int  nSrcStep,
const Npp8u *  pMask,
int  nMaskStep,
NppiSize  oSizeROI,
Npp8u *  pDeviceBuffer,
Npp64f *  pMean,
Npp64f *  pStdDev 
)

Masked one-channel 16-bit unsigned image Mean_StdDev.

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

NppStatus nppiMean_StdDev_16u_C1R ( const Npp16u *  pSrc,
int  nSrcStep,
NppiSize  oSizeROI,
Npp8u *  pDeviceBuffer,
Npp64f *  pMean,
Npp64f *  pStdDev 
)

One-channel 16-bit unsigned image Mean_StdDev.

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

NppStatus nppiMean_StdDev_16u_C3CMR ( const Npp16u *  pSrc,
int  nSrcStep,
const Npp8u *  pMask,
int  nMaskStep,
NppiSize  oSizeROI,
int  nCOI,
Npp8u *  pDeviceBuffer,
Npp64f *  pMean,
Npp64f *  pStdDev 
)

Masked three-channel 16-bit unsigned image Mean_StdDev.

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

NppStatus nppiMean_StdDev_16u_C3CR ( const Npp16u *  pSrc,
int  nSrcStep,
NppiSize  oSizeROI,
int  nCOI,
Npp8u *  pDeviceBuffer,
Npp64f *  pMean,
Npp64f *  pStdDev 
)

Three-channel 16-bit unsigned image Mean_StdDev affecting only single channel.

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

NppStatus nppiMean_StdDev_32f_C1MR ( const Npp32f *  pSrc,
int  nSrcStep,
const Npp8u *  pMask,
int  nMaskStep,
NppiSize  oSizeROI,
Npp8u *  pDeviceBuffer,
Npp64f *  pMean,
Npp64f *  pStdDev 
)

Masked one-channel 32-bit floating point image Mean_StdDev.

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

NppStatus nppiMean_StdDev_32f_C1R ( const Npp32f *  pSrc,
int  nSrcStep,
NppiSize  oSizeROI,
Npp8u *  pDeviceBuffer,
Npp64f *  pMean,
Npp64f *  pStdDev 
)

One-channel 32-bit floating point image Mean_StdDev.

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

NppStatus nppiMean_StdDev_32f_C3CMR ( const Npp32f *  pSrc,
int  nSrcStep,
const Npp8u *  pMask,
int  nMaskStep,
NppiSize  oSizeROI,
int  nCOI,
Npp8u *  pDeviceBuffer,
Npp64f *  pMean,
Npp64f *  pStdDev 
)

Masked three-channel 32-bit floating point image Mean_StdDev.

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

NppStatus nppiMean_StdDev_32f_C3CR ( const Npp32f *  pSrc,
int  nSrcStep,
NppiSize  oSizeROI,
int  nCOI,
Npp8u *  pDeviceBuffer,
Npp64f *  pMean,
Npp64f *  pStdDev 
)

Three-channel 32-bit floating point image Mean_StdDev affecting only single channel.

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

NppStatus nppiMean_StdDev_8s_C1MR ( const Npp8s *  pSrc,
int  nSrcStep,
const Npp8u *  pMask,
int  nMaskStep,
NppiSize  oSizeROI,
Npp8u *  pDeviceBuffer,
Npp64f *  pMean,
Npp64f *  pStdDev 
)

Masked one-channel 8-bit signed image Mean_StdDev.

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

NppStatus nppiMean_StdDev_8s_C1R ( const Npp8s *  pSrc,
int  nSrcStep,
NppiSize  oSizeROI,
Npp8u *  pDeviceBuffer,
Npp64f *  pMean,
Npp64f *  pStdDev 
)

One-channel 8-bit signed image Mean_StdDev.

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

NppStatus nppiMean_StdDev_8s_C3CMR ( const Npp8s *  pSrc,
int  nSrcStep,
const Npp8u *  pMask,
int  nMaskStep,
NppiSize  oSizeROI,
int  nCOI,
Npp8u *  pDeviceBuffer,
Npp64f *  pMean,
Npp64f *  pStdDev 
)

Masked three-channel 8-bit signed image Mean_StdDev.

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

NppStatus nppiMean_StdDev_8s_C3CR ( const Npp8s *  pSrc,
int  nSrcStep,
NppiSize  oSizeROI,
int  nCOI,
Npp8u *  pDeviceBuffer,
Npp64f *  pMean,
Npp64f *  pStdDev 
)

Three-channel 8-bit signed image Mean_StdDev affecting only single channel.

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

NppStatus nppiMean_StdDev_8u_C1MR ( const Npp8u *  pSrc,
int  nSrcStep,
const Npp8u *  pMask,
int  nMaskStep,
NppiSize  oSizeROI,
Npp8u *  pDeviceBuffer,
Npp64f *  pMean,
Npp64f *  pStdDev 
)

Masked one-channel 8-bit unsigned image Mean_StdDev.

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

NppStatus nppiMean_StdDev_8u_C1R ( const Npp8u *  pSrc,
int  nSrcStep,
NppiSize  oSizeROI,
Npp8u *  pDeviceBuffer,
Npp64f *  pMean,
Npp64f *  pStdDev 
)

One-channel 8-bit unsigned image Mean_StdDev.

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

NppStatus nppiMean_StdDev_8u_C3CMR ( const Npp8u *  pSrc,
int  nSrcStep,
const Npp8u *  pMask,
int  nMaskStep,
NppiSize  oSizeROI,
int  nCOI,
Npp8u *  pDeviceBuffer,
Npp64f *  pMean,
Npp64f *  pStdDev 
)

Masked three-channel 8-bit unsigned image Mean_StdDev.

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

NppStatus nppiMean_StdDev_8u_C3CR ( const Npp8u *  pSrc,
int  nSrcStep,
NppiSize  oSizeROI,
int  nCOI,
Npp8u *  pDeviceBuffer,
Npp64f *  pMean,
Npp64f *  pStdDev 
)

Three-channel 8-bit unsigned image Mean_StdDev affecting only single channel.

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

NppStatus nppiMeanStdDevGetBufferHostSize_16u_C1MR ( NppiSize  oSizeROI,
int *  hpBufferSize 
)

Buffer size for nppiMean_StdDev_16u_C1MR.

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

NppStatus nppiMeanStdDevGetBufferHostSize_16u_C1R ( NppiSize  oSizeROI,
int *  hpBufferSize 
)

Buffer size for nppiMean_StdDev_16u_C1R.

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

NppStatus nppiMeanStdDevGetBufferHostSize_16u_C3CMR ( NppiSize  oSizeROI,
int *  hpBufferSize 
)

Buffer size for nppiMean_StdDev_16u_C3CMR.

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

NppStatus nppiMeanStdDevGetBufferHostSize_16u_C3CR ( NppiSize  oSizeROI,
int *  hpBufferSize 
)

Buffer size for nppiMean_StdDev_16u_C3CR.

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

NppStatus nppiMeanStdDevGetBufferHostSize_32f_C1MR ( NppiSize  oSizeROI,
int *  hpBufferSize 
)

Buffer size for nppiMean_StdDev_32f_C1MR.

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

NppStatus nppiMeanStdDevGetBufferHostSize_32f_C1R ( NppiSize  oSizeROI,
int *  hpBufferSize 
)

Buffer size for nppiMean_StdDev_32f_C1R.

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

NppStatus nppiMeanStdDevGetBufferHostSize_32f_C3CMR ( NppiSize  oSizeROI,
int *  hpBufferSize 
)

Buffer size for nppiMean_StdDev_32f_C3CMR.

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

NppStatus nppiMeanStdDevGetBufferHostSize_32f_C3CR ( NppiSize  oSizeROI,
int *  hpBufferSize 
)

Buffer size for nppiMean_StdDev_32f_C3CR.

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

NppStatus nppiMeanStdDevGetBufferHostSize_8s_C1MR ( NppiSize  oSizeROI,
int *  hpBufferSize 
)

Buffer size for nppiMean_StdDev_8s_C1MR.

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

NppStatus nppiMeanStdDevGetBufferHostSize_8s_C1R ( NppiSize  oSizeROI,
int *  hpBufferSize 
)

Buffer size for nppiMean_StdDev_8s_C1R.

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

NppStatus nppiMeanStdDevGetBufferHostSize_8s_C3CMR ( NppiSize  oSizeROI,
int *  hpBufferSize 
)

Buffer size for nppiMean_StdDev_8s_C3CMR.

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

NppStatus nppiMeanStdDevGetBufferHostSize_8s_C3CR ( NppiSize  oSizeROI,
int *  hpBufferSize 
)

Buffer size for nppiMean_StdDev_8s_C3CR.

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

NppStatus nppiMeanStdDevGetBufferHostSize_8u_C1MR ( NppiSize  oSizeROI,
int *  hpBufferSize 
)

Buffer size for nppiMean_StdDev_8u_C1MR.

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

NppStatus nppiMeanStdDevGetBufferHostSize_8u_C1R ( NppiSize  oSizeROI,
int *  hpBufferSize 
)

Buffer size for nppiMean_StdDev_8u_C1R.

For common parameter descriptions, see CommonGetBufferHostSizeParameters.

NppStatus nppiMeanStdDevGetBufferHostSize_8u_C3CMR ( NppiSize  oSizeROI,
int *  hpBufferSize 
)

Buffer size for nppiMean_StdDev_8u_C3CMR.

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

NppStatus nppiMeanStdDevGetBufferHostSize_8u_C3CR ( NppiSize  oSizeROI,
int *  hpBufferSize 
)

Buffer size for nppiMean_StdDev_8u_C3CR.

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

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