FilterThresholdAdaptiveBoxBorder

Computes the average pixel values of the pixels under a square mask with border control. More...

Functions
NppStatus	nppiFilterThresholdAdaptiveBoxBorder_8u_C1R_Ctx (const Npp8u *pSrc, Npp32s nSrcStep, NppiSize oSrcSize, NppiPoint oSrcOffset, Npp8u *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiSize oMaskSize, Npp32f nDelta, Npp8u nValGT, Npp8u nValLE, NppiBorderType eBorderType, NppStreamContext nppStreamCtx)
	Single channel 8-bit unsigned threshold adaptive box filter with border control. More...
NppStatus	nppiFilterThresholdAdaptiveBoxBorder_8u_C1R (const Npp8u *pSrc, Npp32s nSrcStep, NppiSize oSrcSize, NppiPoint oSrcOffset, Npp8u *pDst, Npp32s nDstStep, NppiSize oSizeROI, NppiSize oMaskSize, Npp32f nDelta, Npp8u nValGT, Npp8u nValLE, NppiBorderType eBorderType)

Detailed Description

Computes the average pixel values of the pixels under a square mask with border control.

If any portion of the mask overlaps the source image boundary the requested border type operation is applied to all mask pixels which fall outside of the source image. Once the neighborhood average around a source pixel is determined the souce pixel is compared to the average - nDelta and if the source pixel is greater than that average the corresponding destination pixel is set to nValGT, otherwise nValLE.

Currently only the NPP_BORDER_REPLICATE border type operation is supported.

Parameters

pSrc	Source-Image Pointer.
nSrcStep	Source-Image Line Step.
oSrcSize	Source image width and height in pixels relative to pSrc.
oSrcOffset	The pixel offset that pSrc points to relative to the origin of the source image.
pDst	Destination-Image Pointer.
nDstStep	Destination-Image Line Step.
oSizeROI	Region-of-Interest (ROI).
oMaskSize	Width and Height of the neighborhood region for the local Avg operation, Width and Height must be equal and odd.
nDelta	Neighborhood average adjustment value
nValGT	Destination output value if source pixel is greater than average.
nValLE	Destination output value if source pixel is less than or equal to average.
eBorderType	The border type operation to be applied at source image border boundaries.
nppStreamCtx	Application Managed Stream Context.

Returns

Image Data Related Error Codes, ROI Related Error Codes

Function Documentation

NppStatus nppiFilterThresholdAdaptiveBoxBorder_8u_C1R	(	const Npp8u *	pSrc,
		Npp32s	nSrcStep,
		NppiSize	oSrcSize,
		NppiPoint	oSrcOffset,
		Npp8u *	pDst,
		Npp32s	nDstStep,
		NppiSize	oSizeROI,
		NppiSize	oMaskSize,
		Npp32f	nDelta,
		Npp8u	nValGT,
		Npp8u	nValLE,
		NppiBorderType	eBorderType
	)

NppStatus nppiFilterThresholdAdaptiveBoxBorder_8u_C1R_Ctx	(	const Npp8u *	pSrc,
		Npp32s	nSrcStep,
		NppiSize	oSrcSize,
		NppiPoint	oSrcOffset,
		Npp8u *	pDst,
		Npp32s	nDstStep,
		NppiSize	oSizeROI,
		NppiSize	oMaskSize,
		Npp32f	nDelta,
		Npp8u	nValGT,
		Npp8u	nValLE,
		NppiBorderType	eBorderType,
		NppStreamContext	nppStreamCtx
	)

Single channel 8-bit unsigned threshold adaptive box filter with border control.