YCbCrToRGB

YCbCr to RGB color conversion. More...

Functions
NppStatus	nppiYCbCrToRGB_8u_C3R (const Npp8u *pSrc, int nSrcStep, Npp8u *pDst, int nDstStep, NppiSize oSizeROI)
	3 channel 8-bit unsigned packed YCbCr to 3 channel 8-bit unsigned packed RGB color conversion. More...
NppStatus	nppiYCbCrToRGB_8u_AC4R (const Npp8u *pSrc, int nSrcStep, Npp8u *pDst, int nDstStep, NppiSize oSizeROI)
	4 channel 8-bit unsigned packed YCbCr with alpha to 4 channel 8-bit unsigned packed RGB with alpha color conversion, not affecting alpha. More...
NppStatus	nppiYCbCrToRGB_8u_P3R (const Npp8u *const pSrc[3], int nSrcStep, Npp8u *pDst[3], int nDstStep, NppiSize oSizeROI)
	3 channel 8-bit unsigned planar YCbCr to 3 channel 8-bit unsigned planar RGB color conversion. More...
NppStatus	nppiYCbCrToRGB_8u_P3C3R (const Npp8u *const pSrc[3], int nSrcStep, Npp8u *pDst, int nDstStep, NppiSize oSizeROI)
	3 channel 8-bit unsigned planar YCbCr to 3 channel 8-bit unsigned packed RGB color conversion. More...
NppStatus	nppiYCbCrToRGB_8u_P3C4R (const Npp8u *const pSrc[3], int nSrcStep, Npp8u *pDst, int nDstStep, NppiSize oSizeROI, Npp8u nAval)
	3 channel 8-bit unsigned planar YCbCr to 4 channel 8-bit unsigned packed RGB color conversion with constant alpha. More...

Detailed Description

YCbCr to RGB color conversion.

Here is how NPP converts YCbCr to gamma corrected RGB or BGR. The output RGB values are saturated to the range [0..255].

*  Npp32f nY = 1.164F * ((Npp32f)Y - 16.0F);
*  Npp32f nR = ((Npp32f)Cr - 128.0F);
*  Npp32f nB = ((Npp32f)Cb - 128.0F);
*  Npp32f nG = nY - 0.813F * nR - 0.392F * nB;
*  if (nG > 255.0F)
*      nG = 255.0F;
*  nR = nY + 1.596F * nR; 
*  if (nR > 255.0F)
*      nR = 255.0F;
*  nB = nY + 2.017F * nB;
*  if (nB > 255.0F)
*      nB = 255.0F;
*  

Function Documentation

NppStatus nppiYCbCrToRGB_8u_AC4R	(	const Npp8u *	pSrc,
		int	nSrcStep,
		Npp8u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI
	)

4 channel 8-bit unsigned packed YCbCr with alpha to 4 channel 8-bit unsigned packed RGB with alpha color conversion, not affecting alpha.

Alpha channel is the last channel and is not processed.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiYCbCrToRGB_8u_C3R	(	const Npp8u *	pSrc,
		int	nSrcStep,
		Npp8u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI
	)

3 channel 8-bit unsigned packed YCbCr to 3 channel 8-bit unsigned packed RGB color 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).

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiYCbCrToRGB_8u_P3C3R	(	const Npp8u *const	pSrc[3],
		int	nSrcStep,
		Npp8u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI
	)

3 channel 8-bit unsigned planar YCbCr to 3 channel 8-bit unsigned packed RGB color conversion.

Parameters

pSrc	Source-Planar-Image Pointer Array.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiYCbCrToRGB_8u_P3C4R	(	const Npp8u *const	pSrc[3],
		int	nSrcStep,
		Npp8u *	pDst,
		int	nDstStep,
		NppiSize	oSizeROI,
		Npp8u	nAval
	)

3 channel 8-bit unsigned planar YCbCr to 4 channel 8-bit unsigned packed RGB color conversion with constant alpha.

Parameters

pSrc	Source-Planar-Image Pointer Array.
nSrcStep	Source-Image Line Step.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
nAval	8-bit unsigned alpha constant.

Returns

Image Data Related Error Codes, ROI Related Error Codes

NppStatus nppiYCbCrToRGB_8u_P3R	(	const Npp8u *const	pSrc[3],
		int	nSrcStep,
		Npp8u *	pDst[3],
		int	nDstStep,
		NppiSize	oSizeROI
	)

3 channel 8-bit unsigned planar YCbCr to 3 channel 8-bit unsigned planar RGB color conversion.

Parameters

pSrc	Source-Planar-Image Pointer Array.
nSrcStep	Source-Image Line Step.
pDst	Destination-Planar-Image Pointer Array.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).

Returns

Image Data Related Error Codes, ROI Related Error Codes