DeinterlaceMedianThreshold

Performs median deinterlacing with threshold.

Syntax

IppStatus ippiDeinterlaceMedianThreshold_8u_C1R(const Ipp8u* pSrc, int srcStep, Ipp8u* pDst, int dstStep, IppiSize roiSize, int threshold, int fieldNum, int bCopyBorder);

Parameters

pSrc	Pointer to the source image ROI.
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 image ROI.
threshold	Threshold level value.
fieldNum	Specifies field to process. 0 means the top field, 1 means the bottom field.
bCopyBorder	Controls how to process the border. If its value is not equal to 0, the border line is copied to the destination image, otherwise the border line is processed like internal lines.

Description

The function ippiDeinterlaceMedianThreshold_8u_C1R is declared in the ippvc.h file. It operates with ROI (see Regions of Interest in Intel IPP). This function sets each pixel in the output buffer in the following way:

Copy an unprocessed field from the source to the destination.
Copy the border lines from the source to the destination in the case bCopyBorder parameter is set.
Perform processing of the field, chosen by parameter fieldNum. If the absolute difference between the current pixel value and the median value (M) of three input pixel values, taken from the current position, upper and lower pixels adjacent to the current one, is greater or equal to the threshold, the output pixel value is set to the median value M, otherwise it is set to the current pixel.

The size of the source image ROI is equal to the size roiSize of the destination image ROI.

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 roiSize has a field with zero or negative value.