/*
// Copyright 2015 2016 Intel Corporation All Rights Reserved.
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*/
// A simple example of performing linear filtering of an image using one of predefined convolution kernels
// implemented with Intel IPP functions:
// ippiFilterPrewittHorizBorderGetBufferSize
// ippiFilterPrewittHorizBorder_8u16s_C1R
// ippiFilterPrewittVertBorderGetBufferSize
// ippiFilterPrewittVertBorder_8u16s_C1R
// ippiFilterRobertsDownBorderGetBufferSize
// ippiFilterRobertsDownBorder_8u16s_C1R
// ippiFilterRobertsUpBorderGetBufferSize
// ippiFilterRobertsUpBorder_8u16s_C1R
// ippiFilterScharrHorizMaskBorderGetBufferSize
// ippiFilterScharrHorizMaskBorder_8u16s_C1R
#include <stdio.h>
#include "ipp.h"
#define WIDTH 128 /* image width */
#define HEIGHT 128 /* image height */
/* Next two defines are created to simplify code reading and understanding */
#define EXIT_MAIN exitLine: /* Label for Exit */
#define check_sts(st) if((st) != ippStsNoErr) goto exitLine; /* Go to Exit if IPP function returned status different from ippStsNoErr */
/* Results of ippMalloc() are not validated because Intel(R) Integrated Performance Primitives functions perform bad arguments check and will return an appropriate status */
int main(void)
{
IppStatus status = ippStsNoErr;
Ipp8u* pSrc = NULL; Ipp16s *pDst = NULL; /* Pointers to source/destination images */
int srcStep = 0, dstStep = 0; /* Steps, in bytes, through the source/destination images */
IppiSize srcImageSize = { WIDTH + 1, HEIGHT + 1 }; /* size of source image in pixels */
IppiSize roiSize = { WIDTH, HEIGHT }; /* Size of source/destination ROI in pixels */
Ipp8u *pBuffer = NULL; /* Pointer to the work buffer */
int iTmpBufSize = 0; /* Common work buffer size */
IppiMaskSize mask = ippMskSize3x3; /* Predefined mask of IppiMaskSize type. */
IppDataType srcDataType = ipp8u, dstDataType = ipp16s;
IppiBorderType borderType = (IppiBorderType)(ippBorderRepl | ippBorderInMemTop | ippBorderInMemRight);
Ipp8u borderValue = 254;
int numChannels = 1;
pSrc = ippiMalloc_8u_C1(srcImageSize.width, srcImageSize.height, &srcStep);
pDst = ippiMalloc_16s_C1(roiSize.width, roiSize.height, &dstStep);
/* Filters and image using a horizontal Prewitt filter */
check_sts( status = ippiFilterPrewittHorizBorderGetBufferSize(roiSize, mask, srcDataType, dstDataType, numChannels, &iTmpBufSize) )
pBuffer = ippsMalloc_8u(iTmpBufSize);
check_sts( status = ippiFilterPrewittHorizBorder_8u16s_C1R(pSrc + srcStep, srcStep, pDst, dstStep, roiSize, mask, borderType, borderValue, pBuffer) )
ippsFree(pBuffer);
pBuffer = NULL;
/* Filters and image using a vertical Prewitt filter */
check_sts( status = ippiFilterPrewittVertBorderGetBufferSize(roiSize, mask, srcDataType, dstDataType, numChannels, &iTmpBufSize) )
pBuffer = ippsMalloc_8u(iTmpBufSize);
check_sts( status = ippiFilterPrewittVertBorder_8u16s_C1R(pSrc + srcStep, srcStep, pDst, dstStep, roiSize, mask, borderType, borderValue, pBuffer) )
ippsFree(pBuffer);
pBuffer = NULL;
/* Filters an image using a horizontal Roberts kernel. */
check_sts( status = ippiFilterRobertsDownBorderGetBufferSize(roiSize, mask, srcDataType, dstDataType, numChannels, &iTmpBufSize) )
pBuffer = ippsMalloc_8u(iTmpBufSize);
check_sts( status = ippiFilterRobertsDownBorder_8u16s_C1R(pSrc + srcStep, srcStep, pDst, dstStep, roiSize, mask, borderType, borderValue, pBuffer) )
ippsFree(pBuffer);
pBuffer = NULL;
/* Filters an image using a vertical Roberts edge filter */
check_sts( status = ippiFilterRobertsUpBorderGetBufferSize(roiSize, mask, srcDataType, dstDataType, numChannels, &iTmpBufSize) )
pBuffer = ippsMalloc_8u(iTmpBufSize);
check_sts( status = ippiFilterRobertsUpBorder_8u16s_C1R(pSrc + srcStep, srcStep, pDst, dstStep, roiSize, mask, borderType, borderValue, pBuffer) )
ippsFree(pBuffer);
pBuffer = NULL;
/* Filters an image using a horizontal Scharr kernel */
check_sts( status = ippiFilterScharrHorizMaskBorderGetBufferSize(roiSize, mask, srcDataType, dstDataType, numChannels, &iTmpBufSize) )
pBuffer = ippsMalloc_8u(iTmpBufSize);
check_sts( status = ippiFilterScharrHorizMaskBorder_8u16s_C1R(pSrc + srcStep, srcStep, pDst, dstStep, roiSize, mask, borderType, borderValue, pBuffer) )
EXIT_MAIN
ippsFree(pBuffer);
ippiFree(pSrc);
ippiFree(pDst);
printf("Exit status %d (%s)\n", (int)status, ippGetStatusString(status));
return (int)status;
}