NVIDIA Performance Primitives (NPP)
Version 9.2
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Compare differences between image pixels and constant within an epsilon value and create a binary result image. More...
Functions | |
NppStatus | nppiCompareEqualEpsC_32f_C1R (const Npp32f *pSrc, int nSrcStep, const Npp32f nConstant, Npp8u *pDst, int nDstStep, NppiSize oSizeROI, Npp32f nEpsilon) |
1 channel 32-bit floating point image compare whether image and constant are equal within epsilon. More... |
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NppStatus | nppiCompareEqualEpsC_32f_C3R (const Npp32f *pSrc, int nSrcStep, const Npp32f *pConstants, Npp8u *pDst, int nDstStep, NppiSize oSizeROI, Npp32f nEpsilon) |
3 channel 32-bit floating point image compare whether image and constant are equal within epsilon. More... |
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NppStatus | nppiCompareEqualEpsC_32f_C4R (const Npp32f *pSrc, int nSrcStep, const Npp32f *pConstants, Npp8u *pDst, int nDstStep, NppiSize oSizeROI, Npp32f nEpsilon) |
4 channel 32-bit floating point image compare whether image and constant are equal within epsilon. More... |
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NppStatus | nppiCompareEqualEpsC_32f_AC4R (const Npp32f *pSrc, int nSrcStep, const Npp32f *pConstants, Npp8u *pDst, int nDstStep, NppiSize oSizeROI, Npp32f nEpsilon) |
4 channel 32-bit signed floating point compare whether image and constant are equal within epsilon, not affecting Alpha. More... |
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Compare differences between image pixels and constant within an epsilon value and create a binary result image.
In case of multi-channel image types, the condition must be fulfilled for all channels, otherwise the comparison is considered false. The "binary" result image is of type 8u_C1. False is represented by 0, true by NPP_MAX_8U.
pSrc | Source-Image Pointer. |
nSrcStep | Source-Image Line Step. |
nConstant | constant value for single channel functions. |
pConstants | pointer to a list of constants, one per color channel for multi-channel image functions. |
pDst | Destination-Image Pointer. |
nDstStep | Destination-Image Line Step. |
oSizeROI | Region-of-Interest (ROI). |
nEpsilon | epsilon tolerance value to compare to per color channel pixel absolute differences |
NppStatus nppiCompareEqualEpsC_32f_AC4R | ( | const Npp32f * | pSrc, |
int | nSrcStep, | ||
const Npp32f * | pConstants, | ||
Npp8u * | pDst, | ||
int | nDstStep, | ||
NppiSize | oSizeROI, | ||
Npp32f | nEpsilon | ||
) |
4 channel 32-bit signed floating point compare whether image and constant are equal within epsilon, not affecting Alpha.
Compare pSrc's pixels with constant value to determine whether they are equal within a difference of epsilon.
For common parameter descriptions, see Common parameters for nppiCompareEqualEpsC functions.
NppStatus nppiCompareEqualEpsC_32f_C1R | ( | const Npp32f * | pSrc, |
int | nSrcStep, | ||
const Npp32f | nConstant, | ||
Npp8u * | pDst, | ||
int | nDstStep, | ||
NppiSize | oSizeROI, | ||
Npp32f | nEpsilon | ||
) |
1 channel 32-bit floating point image compare whether image and constant are equal within epsilon.
Compare pSrc's pixels with constant value to determine whether they are equal within a difference of epsilon.
For common parameter descriptions, see Common parameters for nppiCompareEqualEpsC functions.
NppStatus nppiCompareEqualEpsC_32f_C3R | ( | const Npp32f * | pSrc, |
int | nSrcStep, | ||
const Npp32f * | pConstants, | ||
Npp8u * | pDst, | ||
int | nDstStep, | ||
NppiSize | oSizeROI, | ||
Npp32f | nEpsilon | ||
) |
3 channel 32-bit floating point image compare whether image and constant are equal within epsilon.
Compare pSrc's pixels with constant value to determine whether they are equal within a difference of epsilon.
For common parameter descriptions, see Common parameters for nppiCompareEqualEpsC functions.
NppStatus nppiCompareEqualEpsC_32f_C4R | ( | const Npp32f * | pSrc, |
int | nSrcStep, | ||
const Npp32f * | pConstants, | ||
Npp8u * | pDst, | ||
int | nDstStep, | ||
NppiSize | oSizeROI, | ||
Npp32f | nEpsilon | ||
) |
4 channel 32-bit floating point image compare whether image and constant are equal within epsilon.
Compare pSrc's pixels with constant value to determine whether they are equal within a difference of epsilon.
For common parameter descriptions, see Common parameters for nppiCompareEqualEpsC functions.