YCbCrToRGB565_JPEG, YCbCrToRGB555_JPEG

Convert an YCbCr image to the RGB color model.

Syntax

IppStatus ippiYCbCrToRGB565_JPEG_8u16u_P3C3R(const Ipp8u* pSrc[3], int srcStep, Ipp16u* pDst, int dstStep, IppiSize roiSize);

IppStatus ippiYCbCrToRGB555_JPEG_8u16u_P3C3R(const Ipp8u* pSrc[3], int srcStep, Ipp16u* pDst, int dstStep, IppiSize roiSize);

Parameters

pSrc

An array of pointers to the ROIs in the separate source color planes.

srcStep

Distance in bytes between starts of consecutive lines in the source image.

pDst

Pointer to the destination image ROI.

dstStep

Distance in bytes between starts of consecutive lines in the destination image.

roiSize

Size of the source and destination ROI in pixels.

Description

The functions ippiYCbCrToRGB565_JPEG and ippiYCbCrToRGB565_JPEG are declared in the ippj.h file. They operate with ROI (see Regions of Interest in Intel IPP).

These functions convert an YCbCr image to the RGB format using the same formulas as the ippiYCbCrToRGB_JPEG function for computing R, G, and B component values.The destination image pDstRGB has a reduced bit depth of 16 bits per pixel (see Figure “16-bit pixel formats”), and it can be in one of two possible formats : RGB565 (5 bits for red, 6 bits for green, 5 bits for blue), or RGB555 (5 bits for red, green, blue).

Return Values

ippStsNoErr

Indicates no error.

ippStsNullPtrErr

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

ippStsSizeErr

Indicates an error condition if roiSize has a field with zero or negative value.

ippStsStepErr

Indicates an error condition if srcStep or dstStep has a zero or negative value.

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