MeanAbsDev16x16

Evaluates mean absolute deviation for a 16x16 block.

Syntax

IppStatus ippiMeanAbsDev16x16_8u32s_C1R(const Ipp8u* pSrc, int srcStep, Ipp32s* pDst);

Parameters

pSrc

Pointer to the block 16x16.

srcStep

Step of the block.

pDst

Pointer to the deviation.

Description

The function ippiMeanAbsDev16x16_8u32s_C1R is declared in the ippvc.h file. This function evaluates the mean absolute deviation for a 16x16 block by the following formula:



where Mean is evaluated by the formula



This function is used in the H.261, H.263, and MPEG-4 encoders included into Intel IPP Samples. See introduction to Motion Estimation.

Return Values

ippStsNoErr

Indicates no error.

ippStsNullPtrErr

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


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