/*******************************************************************************
* Copyright 2015-2018 Intel Corporation.
*
* This software and the related documents are Intel copyrighted materials, and
* your use of them is governed by the express license under which they were
* provided to you (License). Unless the License provides otherwise, you may not
* use, modify, copy, publish, distribute, disclose or transmit this software or
* the related documents without Intel's prior written permission.
*
* This software and the related documents are provided as is, with no express
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*******************************************************************************/
// A simple example of finding coordinates of peaks
// ippiFindPeaks3x3GetBufferSize_32f_C1R
// ippiFindPeaks3x3_32f_C1R
#include <stdio.h>
#include "ipp.h"
#define WIDTH 128 /* Image width */
#define HEIGHT 128 /* Image height */
#define KERSIZE 3 /* Kernel size */
/* 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 Intel(R) Integrated Primitives (Intel(R) IPP) function returned status different from ippStsNoErr */
/* Results of ippMalloc() are not validated because Intel(R) IPP functions perform bad arguments check and will return an appropriate status */
int main(void)
{
IppStatus status = ippStsNoErr;
Ipp32f *pSrc = NULL; /* initial image */
Ipp8u *pBuffer = NULL; /* working buffer */
IppiPoint *pPeak = NULL; /* array of peaks */
IppiSize roiSize = { WIDTH, HEIGHT }; /* image size */
int srcStep = 0; /* row step in bytes */
int bufSize = 0; /* working buffer size */
int maxPeaks=500; /* max peaks number for image */
int peakCount = 0; /* peaks number for image */
Ipp32f threshold=0.02f; /* peak threshold */
Ipp32s borderValue=40; /* Border Value */
pSrc = ippiMalloc_32f_C1(roiSize.width, roiSize.height, &srcStep);
check_sts( status = ippiFindPeaks3x3GetBufferSize_32f_C1R(roiSize.width,&bufSize) )
pBuffer = ippsMalloc_8u(bufSize);
pPeak = (IppiPoint*)ippsMalloc_8u(maxPeaks*sizeof(IppiPoint));
check_sts( status = ippiFindPeaks3x3_32f_C1R(pSrc,srcStep,roiSize,threshold,pPeak,maxPeaks,
&peakCount,ippiNormL1,borderValue,pBuffer) )
EXIT_MAIN
ippsFree(pBuffer);
ippsFree(pPeak);
ippiFree(pSrc);
printf("Exit status %d (%s)\n", (int)status, ippGetStatusString(status));
return status;
}