Intel® Integrated Performance Primitives Developer Guide and Reference

ID 790148
Date 11/07/2023
Public

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Document Table of Contents

CFAToBGRA

Restores the RGB image from the gray-scale CFA image using the VNG algorithm.

Syntax

IppStatus ippiCFAToBGRA_VNG_8u_C1C4R(const Ipp8u* pSrc, IppiRect srcRoi, IppiSize srcSize, int srcStep, Ipp32f scale[4], Ipp8u* pDst, int dstStep, IppiBayerGrid grid);

IppStatus ippiCFAToBGRA_VNG_16u_C1C4R(const Ipp16u* pSrc, IppiRect srcRoi, IppiSize srcSize, int srcStep, Ipp32f scale[4], Ipp16u* pDst, int dstStep, IppiBayerGrid grid);

Platform-aware functions

IppStatus ippiCFAToBGRA_VNG_8u_C1C4R_L(const Ipp8u* pSrc, IppiRectL srcRoiL, IppiSizeL srcSizeL, IppSizeL srcStepL, Ipp32f scale[4], Ipp8u* pDst, IppSizeL dstStepL, IppiBayerGrid grid);

IppStatus ippiCFAToBGRA_VNG_16u_C1C4R_L(const Ipp16u* pSrc, IppiRectL srcRoiL, IppiSizeL srcSizeL, IppSizeL srcStepL, Ipp32f scale[4], Ipp16u* pDst, IppSizeL dstStepL, IppiBayerGrid grid);

Include Files

ippcc.h

ippcc_l.h

Domain Dependencies

Headers: ippcore.h, ippvm.h, ipps.h, ippi.h

Libraries: ippcore.lib, ippvm.lib, ipps.lib, ippi.lib

Parameters

pSrc

Pointer to the source image.

srcRoi, srcRoiL

Region of interest in the source image (of the IppiRect or IppiRectL type).

srcSize, srcSizeL

Size of the source image.

srcStep, srcStepL

Distance, in bytes, between the starting points of consecutive lines in the source image.

scale[4]

Coefficients by which the resulting RGB channels are multiplied after interpolation. By default, equal to 1.0.

pDst

Pointer to the destination image.

dstStep, dstStepL

Distance, in bytes, between the starting points of consecutive lines in the destination image.

grid

Specifies the configuration of the Bayer grid in the source image. The function copies 2-pixel width border pixels from the internal neighborhood pixels. The following values are possible:

ippiBayerBGGR

ippiBayerRGGB

ippiBayerGBRG

ippiBayerGRBG

Description

This function operates with ROI (see Regions of Interest in Intel IPP).

This function transforms the one-channel gray-scale image pSrc that is produced by applying the color filter array (CFA) to 24-bit three-channel RGB image using the Variable Number of Gradients (VNG) demosaicing algorithm.

Return Values

ippStsNoErr

Indicates no error. Any other value indicates an error.

ippStsNullPtrErr

Indicates an error condition if one of the specified pointers is NULL.

ippStsSizeErr

Indicates an error condition if the srcSize or srcSizeL has a field that is less than 2, or if the srcRoi or srcRoiL has a field with a negative or zero value.

ippStsBadArgErr

Indicates an error condition if grid has an illegal value.