NVIDIA Performance Primitives (NPP)
Version 9.2
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Computes the average pixel values of the pixels under a square mask with border control. More...
Functions | |
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) |
Single channel 8-bit unsigned threshold adaptive box filter with border control. More... |
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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.
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. |
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 | ||
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Single channel 8-bit unsigned threshold adaptive box filter with border control.