ColorToGray Conversion

Routines for converting color images to grayscale. More...

RGBToGray
RGB to CCIR601 Gray conversion. Here is how NPP converts gamma corrected RGB to CCIR601 Gray. * nGray = 0.299F * R + 0.587F * G + 0.114F * B; *
NppStatus	nppiRGBToGray_8u_C3C1R_Ctx (const Npp8u *pSrc, int nSrcStep, Npp8u *pDst, int nDstStep, NppiSize oSizeROI, NppStreamContext nppStreamCtx)
	3 channel 8-bit unsigned packed RGB to 1 channel 8-bit unsigned packed Gray conversion. More...
NppStatus	nppiRGBToGray_8u_C3C1R (const Npp8u *pSrc, int nSrcStep, Npp8u *pDst, int nDstStep, NppiSize oSizeROI)
NppStatus	nppiRGBToGray_8u_AC4C1R_Ctx (const Npp8u *pSrc, int nSrcStep, Npp8u *pDst, int nDstStep, NppiSize oSizeROI, NppStreamContext nppStreamCtx)
	4 channel 8-bit unsigned packed RGB with alpha to 1 channel 8-bit unsigned packed Gray conversion. More...
NppStatus	nppiRGBToGray_8u_AC4C1R (const Npp8u *pSrc, int nSrcStep, Npp8u *pDst, int nDstStep, NppiSize oSizeROI)
NppStatus	nppiRGBToGray_16u_C3C1R_Ctx (const Npp16u *pSrc, int nSrcStep, Npp16u *pDst, int nDstStep, NppiSize oSizeROI, NppStreamContext nppStreamCtx)
	3 channel 16-bit unsigned packed RGB to 1 channel 16-bit unsigned packed Gray conversion. More...
NppStatus	nppiRGBToGray_16u_C3C1R (const Npp16u *pSrc, int nSrcStep, Npp16u *pDst, int nDstStep, NppiSize oSizeROI)
NppStatus	nppiRGBToGray_16u_AC4C1R_Ctx (const Npp16u *pSrc, int nSrcStep, Npp16u *pDst, int nDstStep, NppiSize oSizeROI, NppStreamContext nppStreamCtx)
	4 channel 16-bit unsigned packed RGB with alpha to 1 channel 16-bit unsigned packed Gray conversion. More...
NppStatus	nppiRGBToGray_16u_AC4C1R (const Npp16u *pSrc, int nSrcStep, Npp16u *pDst, int nDstStep, NppiSize oSizeROI)
NppStatus	nppiRGBToGray_16s_C3C1R_Ctx (const Npp16s *pSrc, int nSrcStep, Npp16s *pDst, int nDstStep, NppiSize oSizeROI, NppStreamContext nppStreamCtx)
	3 channel 16-bit signed packed RGB to 1 channel 16-bit signed packed Gray conversion. More...
NppStatus	nppiRGBToGray_16s_C3C1R (const Npp16s *pSrc, int nSrcStep, Npp16s *pDst, int nDstStep, NppiSize oSizeROI)
NppStatus	nppiRGBToGray_16s_AC4C1R_Ctx (const Npp16s *pSrc, int nSrcStep, Npp16s *pDst, int nDstStep, NppiSize oSizeROI, NppStreamContext nppStreamCtx)
	4 channel 16-bit signed packed RGB with alpha to 1 channel 16-bit signed packed Gray conversion. More...
NppStatus	nppiRGBToGray_16s_AC4C1R (const Npp16s *pSrc, int nSrcStep, Npp16s *pDst, int nDstStep, NppiSize oSizeROI)
NppStatus	nppiRGBToGray_32f_C3C1R_Ctx (const Npp32f *pSrc, int nSrcStep, Npp32f *pDst, int nDstStep, NppiSize oSizeROI, NppStreamContext nppStreamCtx)
	3 channel 32-bit floating point packed RGB to 1 channel 32-bit floating point packed Gray conversion. More...
NppStatus	nppiRGBToGray_32f_C3C1R (const Npp32f *pSrc, int nSrcStep, Npp32f *pDst, int nDstStep, NppiSize oSizeROI)
NppStatus	nppiRGBToGray_32f_AC4C1R_Ctx (const Npp32f *pSrc, int nSrcStep, Npp32f *pDst, int nDstStep, NppiSize oSizeROI, NppStreamContext nppStreamCtx)
	4 channel 32-bit floating point packed RGB with alpha to 1 channel 32-bit floating point packed Gray conversion. More...
NppStatus	nppiRGBToGray_32f_AC4C1R (const Npp32f *pSrc, int nSrcStep, Npp32f *pDst, int nDstStep, NppiSize oSizeROI)

ColorToGray
RGB Color to Gray conversion using user supplied conversion coefficients. Here is how NPP converts gamma corrected RGB Color to Gray using user supplied conversion coefficients. * nGray = aCoeffs[0] * R + aCoeffs[1] * G + aCoeffs[2] * B; * For the C4C1R versions of the functions the calculations are as follows. For BGRA or other formats with alpha just rearrange the coefficients accordingly. * nGray = aCoeffs[0] * R + aCoeffs[1] * G + aCoeffs[2] * B + aCoeffs[3] * A; *
NppStatus	nppiColorToGray_8u_C3C1R_Ctx (const Npp8u *pSrc, int nSrcStep, Npp8u *pDst, int nDstStep, NppiSize oSizeROI, const Npp32f aCoeffs[3], NppStreamContext nppStreamCtx)
	3 channel 8-bit unsigned packed RGB to 1 channel 8-bit unsigned packed Gray conversion. More...
NppStatus	nppiColorToGray_8u_C3C1R (const Npp8u *pSrc, int nSrcStep, Npp8u *pDst, int nDstStep, NppiSize oSizeROI, const Npp32f aCoeffs[3])
NppStatus	nppiColorToGray_8u_AC4C1R_Ctx (const Npp8u *pSrc, int nSrcStep, Npp8u *pDst, int nDstStep, NppiSize oSizeROI, const Npp32f aCoeffs[3], NppStreamContext nppStreamCtx)
	4 channel 8-bit unsigned packed RGB with alpha to 1 channel 8-bit unsigned packed Gray conversion. More...
NppStatus	nppiColorToGray_8u_AC4C1R (const Npp8u *pSrc, int nSrcStep, Npp8u *pDst, int nDstStep, NppiSize oSizeROI, const Npp32f aCoeffs[3])
NppStatus	nppiColorToGray_8u_C4C1R_Ctx (const Npp8u *pSrc, int nSrcStep, Npp8u *pDst, int nDstStep, NppiSize oSizeROI, const Npp32f aCoeffs[4], NppStreamContext nppStreamCtx)
	4 channel 8-bit unsigned packed RGBA to 1 channel 8-bit unsigned packed Gray conversion. More...
NppStatus	nppiColorToGray_8u_C4C1R (const Npp8u *pSrc, int nSrcStep, Npp8u *pDst, int nDstStep, NppiSize oSizeROI, const Npp32f aCoeffs[4])
NppStatus	nppiColorToGray_16u_C3C1R_Ctx (const Npp16u *pSrc, int nSrcStep, Npp16u *pDst, int nDstStep, NppiSize oSizeROI, const Npp32f aCoeffs[3], NppStreamContext nppStreamCtx)
	3 channel 16-bit unsigned packed RGB to 1 channel 16-bit unsigned packed Gray conversion. More...
NppStatus	nppiColorToGray_16u_C3C1R (const Npp16u *pSrc, int nSrcStep, Npp16u *pDst, int nDstStep, NppiSize oSizeROI, const Npp32f aCoeffs[3])
NppStatus	nppiColorToGray_16u_AC4C1R_Ctx (const Npp16u *pSrc, int nSrcStep, Npp16u *pDst, int nDstStep, NppiSize oSizeROI, const Npp32f aCoeffs[3], NppStreamContext nppStreamCtx)
	4 channel 16-bit unsigned packed RGB with alpha to 1 channel 16-bit unsigned packed Gray conversion. More...
NppStatus	nppiColorToGray_16u_AC4C1R (const Npp16u *pSrc, int nSrcStep, Npp16u *pDst, int nDstStep, NppiSize oSizeROI, const Npp32f aCoeffs[3])
NppStatus	nppiColorToGray_16u_C4C1R_Ctx (const Npp16u *pSrc, int nSrcStep, Npp16u *pDst, int nDstStep, NppiSize oSizeROI, const Npp32f aCoeffs[4], NppStreamContext nppStreamCtx)
	4 channel 16-bit unsigned packed RGBA to 1 channel 16-bit unsigned packed Gray conversion. More...
NppStatus	nppiColorToGray_16u_C4C1R (const Npp16u *pSrc, int nSrcStep, Npp16u *pDst, int nDstStep, NppiSize oSizeROI, const Npp32f aCoeffs[4])
NppStatus	nppiColorToGray_16s_C3C1R_Ctx (const Npp16s *pSrc, int nSrcStep, Npp16s *pDst, int nDstStep, NppiSize oSizeROI, const Npp32f aCoeffs[3], NppStreamContext nppStreamCtx)
	3 channel 16-bit signed packed RGB to 1 channel 16-bit signed packed Gray conversion. More...
NppStatus	nppiColorToGray_16s_C3C1R (const Npp16s *pSrc, int nSrcStep, Npp16s *pDst, int nDstStep, NppiSize oSizeROI, const Npp32f aCoeffs[3])
NppStatus	nppiColorToGray_16s_AC4C1R_Ctx (const Npp16s *pSrc, int nSrcStep, Npp16s *pDst, int nDstStep, NppiSize oSizeROI, const Npp32f aCoeffs[3], NppStreamContext nppStreamCtx)
	4 channel 16-bit signed packed RGB with alpha to 1 channel 16-bit signed packed Gray conversion. More...
NppStatus	nppiColorToGray_16s_AC4C1R (const Npp16s *pSrc, int nSrcStep, Npp16s *pDst, int nDstStep, NppiSize oSizeROI, const Npp32f aCoeffs[3])
NppStatus	nppiColorToGray_16s_C4C1R_Ctx (const Npp16s *pSrc, int nSrcStep, Npp16s *pDst, int nDstStep, NppiSize oSizeROI, const Npp32f aCoeffs[4], NppStreamContext nppStreamCtx)
	4 channel 16-bit signed packed RGBA to 1 channel 16-bit signed packed Gray conversion. More...
NppStatus	nppiColorToGray_16s_C4C1R (const Npp16s *pSrc, int nSrcStep, Npp16s *pDst, int nDstStep, NppiSize oSizeROI, const Npp32f aCoeffs[4])
NppStatus	nppiColorToGray_32f_C3C1R_Ctx (const Npp32f *pSrc, int nSrcStep, Npp32f *pDst, int nDstStep, NppiSize oSizeROI, const Npp32f aCoeffs[3], NppStreamContext nppStreamCtx)
	3 channel 32-bit floating point packed RGB to 1 channel 32-bit floating point packed Gray conversion. More...
NppStatus	nppiColorToGray_32f_C3C1R (const Npp32f *pSrc, int nSrcStep, Npp32f *pDst, int nDstStep, NppiSize oSizeROI, const Npp32f aCoeffs[3])
NppStatus	nppiColorToGray_32f_AC4C1R_Ctx (const Npp32f *pSrc, int nSrcStep, Npp32f *pDst, int nDstStep, NppiSize oSizeROI, const Npp32f aCoeffs[3], NppStreamContext nppStreamCtx)
	4 channel 32-bit floating point packed RGB with alpha to 1 channel 32-bit floating point packed Gray conversion. More...
NppStatus	nppiColorToGray_32f_AC4C1R (const Npp32f *pSrc, int nSrcStep, Npp32f *pDst, int nDstStep, NppiSize oSizeROI, const Npp32f aCoeffs[3])
NppStatus	nppiColorToGray_32f_C4C1R_Ctx (const Npp32f *pSrc, int nSrcStep, Npp32f *pDst, int nDstStep, NppiSize oSizeROI, const Npp32f aCoeffs[4], NppStreamContext nppStreamCtx)
	4 channel 32-bit floating point packed RGBA to 1 channel 32-bit floating point packed Gray conversion. More...
NppStatus	nppiColorToGray_32f_C4C1R (const Npp32f *pSrc, int nSrcStep, Npp32f *pDst, int nDstStep, NppiSize oSizeROI, const Npp32f aCoeffs[4])

GradientColorToGray
RGB Color to Gray Gradient conversion using user selected gradient distance method.
NppStatus	nppiGradientColorToGray_8u_C3C1R_Ctx (const Npp8u *pSrc, int nSrcStep, Npp8u *pDst, int nDstStep, NppiSize oSizeROI, NppiNorm eNorm, NppStreamContext nppStreamCtx)
	3 channel 8-bit unsigned packed RGB to 1 channel 8-bit unsigned packed Gray Gradient conversion. More...
NppStatus	nppiGradientColorToGray_8u_C3C1R (const Npp8u *pSrc, int nSrcStep, Npp8u *pDst, int nDstStep, NppiSize oSizeROI, NppiNorm eNorm)
NppStatus	nppiGradientColorToGray_16u_C3C1R_Ctx (const Npp16u *pSrc, int nSrcStep, Npp16u *pDst, int nDstStep, NppiSize oSizeROI, NppiNorm eNorm, NppStreamContext nppStreamCtx)
	3 channel 16-bit unsigned packed RGB to 1 channel 16-bit unsigned packed Gray Gradient conversion. More...
NppStatus	nppiGradientColorToGray_16u_C3C1R (const Npp16u *pSrc, int nSrcStep, Npp16u *pDst, int nDstStep, NppiSize oSizeROI, NppiNorm eNorm)
NppStatus	nppiGradientColorToGray_16s_C3C1R_Ctx (const Npp16s *pSrc, int nSrcStep, Npp16s *pDst, int nDstStep, NppiSize oSizeROI, NppiNorm eNorm, NppStreamContext nppStreamCtx)
	3 channel 16-bit signed packed RGB to 1 channel 16-bit signed packed Gray Gradient conversion. More...
NppStatus	nppiGradientColorToGray_16s_C3C1R (const Npp16s *pSrc, int nSrcStep, Npp16s *pDst, int nDstStep, NppiSize oSizeROI, NppiNorm eNorm)
NppStatus	nppiGradientColorToGray_32f_C3C1R_Ctx (const Npp32f *pSrc, int nSrcStep, Npp32f *pDst, int nDstStep, NppiSize oSizeROI, NppiNorm eNorm, NppStreamContext nppStreamCtx)
	3 channel 32-bit floating point packed RGB to 1 channel 32-bit floating point packed Gray Gradient conversion. More...
NppStatus	nppiGradientColorToGray_32f_C3C1R (const Npp32f *pSrc, int nSrcStep, Npp32f *pDst, int nDstStep, NppiSize oSizeROI, NppiNorm eNorm)

Detailed Description

Routines for converting color images to grayscale.

Function Documentation

NppStatus nppiColorToGray_16s_AC4C1R	(	const Npp16s *	pSrc,
		int	nSrcStep,
		Npp16s *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		const Npp32f	aCoeffs[3]
	)

NppStatus nppiColorToGray_16s_AC4C1R_Ctx	(	const Npp16s *	pSrc,
		int	nSrcStep,
		Npp16s *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		const Npp32f	aCoeffs[3],
		NppStreamContext	nppStreamCtx
	)

4 channel 16-bit signed packed RGB with alpha to 1 channel 16-bit signed packed Gray conversion.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
aCoeffs	fixed size array of constant floating point conversion coefficient values, one per color channel.
nppStreamCtx	Application Managed Stream Context.

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiColorToGray_16s_C3C1R	(	const Npp16s *	pSrc,
		int	nSrcStep,
		Npp16s *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		const Npp32f	aCoeffs[3]
	)

NppStatus nppiColorToGray_16s_C3C1R_Ctx	(	const Npp16s *	pSrc,
		int	nSrcStep,
		Npp16s *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		const Npp32f	aCoeffs[3],
		NppStreamContext	nppStreamCtx
	)

3 channel 16-bit signed packed RGB to 1 channel 16-bit signed packed Gray conversion.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
aCoeffs	fixed size array of constant floating point conversion coefficient values, one per color channel.
nppStreamCtx	Application Managed Stream Context.

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiColorToGray_16s_C4C1R	(	const Npp16s *	pSrc,
		int	nSrcStep,
		Npp16s *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		const Npp32f	aCoeffs[4]
	)

NppStatus nppiColorToGray_16s_C4C1R_Ctx	(	const Npp16s *	pSrc,
		int	nSrcStep,
		Npp16s *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		const Npp32f	aCoeffs[4],
		NppStreamContext	nppStreamCtx
	)

4 channel 16-bit signed packed RGBA to 1 channel 16-bit signed packed Gray conversion.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
aCoeffs	fixed size array of constant floating point conversion coefficient values, one per color channel.
nppStreamCtx	Application Managed Stream Context.

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiColorToGray_16u_AC4C1R	(	const Npp16u *	pSrc,
		int	nSrcStep,
		Npp16u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		const Npp32f	aCoeffs[3]
	)

NppStatus nppiColorToGray_16u_AC4C1R_Ctx	(	const Npp16u *	pSrc,
		int	nSrcStep,
		Npp16u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		const Npp32f	aCoeffs[3],
		NppStreamContext	nppStreamCtx
	)

4 channel 16-bit unsigned packed RGB with alpha to 1 channel 16-bit unsigned packed Gray conversion.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
aCoeffs	fixed size array of constant floating point conversion coefficient values, one per color channel.
nppStreamCtx	Application Managed Stream Context.

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiColorToGray_16u_C3C1R	(	const Npp16u *	pSrc,
		int	nSrcStep,
		Npp16u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		const Npp32f	aCoeffs[3]
	)

NppStatus nppiColorToGray_16u_C3C1R_Ctx	(	const Npp16u *	pSrc,
		int	nSrcStep,
		Npp16u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		const Npp32f	aCoeffs[3],
		NppStreamContext	nppStreamCtx
	)

3 channel 16-bit unsigned packed RGB to 1 channel 16-bit unsigned packed Gray conversion.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
aCoeffs	fixed size array of constant floating point conversion coefficient values, one per color channel.
nppStreamCtx	Application Managed Stream Context.

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiColorToGray_16u_C4C1R	(	const Npp16u *	pSrc,
		int	nSrcStep,
		Npp16u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		const Npp32f	aCoeffs[4]
	)

NppStatus nppiColorToGray_16u_C4C1R_Ctx	(	const Npp16u *	pSrc,
		int	nSrcStep,
		Npp16u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		const Npp32f	aCoeffs[4],
		NppStreamContext	nppStreamCtx
	)

4 channel 16-bit unsigned packed RGBA to 1 channel 16-bit unsigned packed Gray conversion.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
aCoeffs	fixed size array of constant floating point conversion coefficient values, one per color channel.
nppStreamCtx	Application Managed Stream Context.

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiColorToGray_32f_AC4C1R	(	const Npp32f *	pSrc,
		int	nSrcStep,
		Npp32f *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		const Npp32f	aCoeffs[3]
	)

NppStatus nppiColorToGray_32f_AC4C1R_Ctx	(	const Npp32f *	pSrc,
		int	nSrcStep,
		Npp32f *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		const Npp32f	aCoeffs[3],
		NppStreamContext	nppStreamCtx
	)

4 channel 32-bit floating point packed RGB with alpha to 1 channel 32-bit floating point packed Gray conversion.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
aCoeffs	fixed size array of constant floating point conversion coefficient values, one per color channel.
nppStreamCtx	Application Managed Stream Context.

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiColorToGray_32f_C3C1R	(	const Npp32f *	pSrc,
		int	nSrcStep,
		Npp32f *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		const Npp32f	aCoeffs[3]
	)

NppStatus nppiColorToGray_32f_C3C1R_Ctx	(	const Npp32f *	pSrc,
		int	nSrcStep,
		Npp32f *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		const Npp32f	aCoeffs[3],
		NppStreamContext	nppStreamCtx
	)

3 channel 32-bit floating point packed RGB to 1 channel 32-bit floating point packed Gray conversion.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
aCoeffs	fixed size array of constant floating point conversion coefficient values, one per color channel.
nppStreamCtx	Application Managed Stream Context.

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiColorToGray_32f_C4C1R	(	const Npp32f *	pSrc,
		int	nSrcStep,
		Npp32f *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		const Npp32f	aCoeffs[4]
	)

NppStatus nppiColorToGray_32f_C4C1R_Ctx	(	const Npp32f *	pSrc,
		int	nSrcStep,
		Npp32f *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		const Npp32f	aCoeffs[4],
		NppStreamContext	nppStreamCtx
	)

4 channel 32-bit floating point packed RGBA to 1 channel 32-bit floating point packed Gray conversion.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
aCoeffs	fixed size array of constant floating point conversion coefficient values, one per color channel.
nppStreamCtx	Application Managed Stream Context.

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiColorToGray_8u_AC4C1R	(	const Npp8u *	pSrc,
		int	nSrcStep,
		Npp8u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		const Npp32f	aCoeffs[3]
	)

NppStatus nppiColorToGray_8u_AC4C1R_Ctx	(	const Npp8u *	pSrc,
		int	nSrcStep,
		Npp8u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		const Npp32f	aCoeffs[3],
		NppStreamContext	nppStreamCtx
	)

4 channel 8-bit unsigned packed RGB with alpha to 1 channel 8-bit unsigned packed Gray conversion.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
aCoeffs	fixed size array of constant floating point conversion coefficient values, one per color channel.
nppStreamCtx	Application Managed Stream Context.

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiColorToGray_8u_C3C1R	(	const Npp8u *	pSrc,
		int	nSrcStep,
		Npp8u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		const Npp32f	aCoeffs[3]
	)

NppStatus nppiColorToGray_8u_C3C1R_Ctx	(	const Npp8u *	pSrc,
		int	nSrcStep,
		Npp8u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		const Npp32f	aCoeffs[3],
		NppStreamContext	nppStreamCtx
	)

3 channel 8-bit unsigned packed RGB to 1 channel 8-bit unsigned packed Gray conversion.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
aCoeffs	fixed size array of constant floating point conversion coefficient values, one per color channel.
nppStreamCtx	Application Managed Stream Context.

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiColorToGray_8u_C4C1R	(	const Npp8u *	pSrc,
		int	nSrcStep,
		Npp8u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		const Npp32f	aCoeffs[4]
	)

NppStatus nppiColorToGray_8u_C4C1R_Ctx	(	const Npp8u *	pSrc,
		int	nSrcStep,
		Npp8u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		const Npp32f	aCoeffs[4],
		NppStreamContext	nppStreamCtx
	)

4 channel 8-bit unsigned packed RGBA to 1 channel 8-bit unsigned packed Gray conversion.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
aCoeffs	fixed size array of constant floating point conversion coefficient values, one per color channel.
nppStreamCtx	Application Managed Stream Context.

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiGradientColorToGray_16s_C3C1R	(	const Npp16s *	pSrc,
		int	nSrcStep,
		Npp16s *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		NppiNorm	eNorm
	)

NppStatus nppiGradientColorToGray_16s_C3C1R_Ctx	(	const Npp16s *	pSrc,
		int	nSrcStep,
		Npp16s *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		NppiNorm	eNorm,
		NppStreamContext	nppStreamCtx
	)

3 channel 16-bit signed packed RGB to 1 channel 16-bit signed packed Gray Gradient conversion.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
eNorm	Gradient distance method to use.
nppStreamCtx	Application Managed Stream Context.

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiGradientColorToGray_16u_C3C1R	(	const Npp16u *	pSrc,
		int	nSrcStep,
		Npp16u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		NppiNorm	eNorm
	)

NppStatus nppiGradientColorToGray_16u_C3C1R_Ctx	(	const Npp16u *	pSrc,
		int	nSrcStep,
		Npp16u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		NppiNorm	eNorm,
		NppStreamContext	nppStreamCtx
	)

3 channel 16-bit unsigned packed RGB to 1 channel 16-bit unsigned packed Gray Gradient conversion.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
eNorm	Gradient distance method to use.
nppStreamCtx	Application Managed Stream Context.

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiGradientColorToGray_32f_C3C1R	(	const Npp32f *	pSrc,
		int	nSrcStep,
		Npp32f *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		NppiNorm	eNorm
	)

NppStatus nppiGradientColorToGray_32f_C3C1R_Ctx	(	const Npp32f *	pSrc,
		int	nSrcStep,
		Npp32f *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		NppiNorm	eNorm,
		NppStreamContext	nppStreamCtx
	)

3 channel 32-bit floating point packed RGB to 1 channel 32-bit floating point packed Gray Gradient conversion.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
eNorm	Gradient distance method to use.
nppStreamCtx	Application Managed Stream Context.

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiGradientColorToGray_8u_C3C1R	(	const Npp8u *	pSrc,
		int	nSrcStep,
		Npp8u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		NppiNorm	eNorm
	)

NppStatus nppiGradientColorToGray_8u_C3C1R_Ctx	(	const Npp8u *	pSrc,
		int	nSrcStep,
		Npp8u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		NppiNorm	eNorm,
		NppStreamContext	nppStreamCtx
	)

3 channel 8-bit unsigned packed RGB to 1 channel 8-bit unsigned packed Gray Gradient conversion.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
eNorm	Gradient distance method to use.
nppStreamCtx	Application Managed Stream Context.

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiRGBToGray_16s_AC4C1R	(	const Npp16s *	pSrc,
		int	nSrcStep,
		Npp16s *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI
	)

NppStatus nppiRGBToGray_16s_AC4C1R_Ctx	(	const Npp16s *	pSrc,
		int	nSrcStep,
		Npp16s *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		NppStreamContext	nppStreamCtx
	)

4 channel 16-bit signed packed RGB with alpha to 1 channel 16-bit signed packed Gray conversion.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
nppStreamCtx	Application Managed Stream Context.

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiRGBToGray_16s_C3C1R	(	const Npp16s *	pSrc,
		int	nSrcStep,
		Npp16s *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI
	)

NppStatus nppiRGBToGray_16s_C3C1R_Ctx	(	const Npp16s *	pSrc,
		int	nSrcStep,
		Npp16s *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		NppStreamContext	nppStreamCtx
	)

3 channel 16-bit signed packed RGB to 1 channel 16-bit signed packed Gray conversion.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
nppStreamCtx	Application Managed Stream Context.

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiRGBToGray_16u_AC4C1R	(	const Npp16u *	pSrc,
		int	nSrcStep,
		Npp16u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI
	)

NppStatus nppiRGBToGray_16u_AC4C1R_Ctx	(	const Npp16u *	pSrc,
		int	nSrcStep,
		Npp16u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		NppStreamContext	nppStreamCtx
	)

4 channel 16-bit unsigned packed RGB with alpha to 1 channel 16-bit unsigned packed Gray conversion.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
nppStreamCtx	Application Managed Stream Context.

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiRGBToGray_16u_C3C1R	(	const Npp16u *	pSrc,
		int	nSrcStep,
		Npp16u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI
	)

NppStatus nppiRGBToGray_16u_C3C1R_Ctx	(	const Npp16u *	pSrc,
		int	nSrcStep,
		Npp16u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		NppStreamContext	nppStreamCtx
	)

3 channel 16-bit unsigned packed RGB to 1 channel 16-bit unsigned packed Gray conversion.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
nppStreamCtx	Application Managed Stream Context.

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiRGBToGray_32f_AC4C1R	(	const Npp32f *	pSrc,
		int	nSrcStep,
		Npp32f *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI
	)

NppStatus nppiRGBToGray_32f_AC4C1R_Ctx	(	const Npp32f *	pSrc,
		int	nSrcStep,
		Npp32f *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		NppStreamContext	nppStreamCtx
	)

4 channel 32-bit floating point packed RGB with alpha to 1 channel 32-bit floating point packed Gray conversion.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
nppStreamCtx	Application Managed Stream Context.

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiRGBToGray_32f_C3C1R	(	const Npp32f *	pSrc,
		int	nSrcStep,
		Npp32f *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI
	)

NppStatus nppiRGBToGray_32f_C3C1R_Ctx	(	const Npp32f *	pSrc,
		int	nSrcStep,
		Npp32f *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		NppStreamContext	nppStreamCtx
	)

3 channel 32-bit floating point packed RGB to 1 channel 32-bit floating point packed Gray conversion.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
nppStreamCtx	Application Managed Stream Context.

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiRGBToGray_8u_AC4C1R	(	const Npp8u *	pSrc,
		int	nSrcStep,
		Npp8u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI
	)

NppStatus nppiRGBToGray_8u_AC4C1R_Ctx	(	const Npp8u *	pSrc,
		int	nSrcStep,
		Npp8u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		NppStreamContext	nppStreamCtx
	)

4 channel 8-bit unsigned packed RGB with alpha to 1 channel 8-bit unsigned packed Gray conversion.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
nppStreamCtx	Application Managed Stream Context.

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiRGBToGray_8u_C3C1R	(	const Npp8u *	pSrc,
		int	nSrcStep,
		Npp8u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI
	)

NppStatus nppiRGBToGray_8u_C3C1R_Ctx	(	const Npp8u *	pSrc,
		int	nSrcStep,
		Npp8u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		NppStreamContext	nppStreamCtx
	)

3 channel 8-bit unsigned packed RGB to 1 channel 8-bit unsigned packed Gray conversion.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
nppStreamCtx	Application Managed Stream Context.

Returns

Image Data Related Error Codes, ROI Related Error Codes