/*******************************************************************************
* 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
* or implied warranties, other than those that are expressly stated in the
* License.
*******************************************************************************/
// A simple example of Line Suppression
// using Intel(R) Integrated Primitives (Intel(R) IPP) functions:
// ippiLineSuppressionGetBufferSize
// ippiLineSuppression_8u_C1R
#include <stdio.h>
#include "ipp.h"
#define WIDTH 128 /* image width */
#define HEIGHT 64 /* 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 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;
Ipp8u* pSrc = NULL, *pDst = NULL, *pFeature = NULL; /* Pointers to source/destination/feature images */
int srcStep = 0, dstStep = 0, featureStep = 0; /* Steps, in bytes, through the source/destination/feature images */
IppiSize roiSize = { WIDTH, HEIGHT }; /* Size of source/destination ROI in pixels */
IppiMaskSize filterMask = ippMskSize3x3; /* Linear size of derivative filter aperture */
Ipp32u avgWndSize = 1; /* Neighbourhood block size for smoothing */
Ipp32u numChannels = 1;
Ipp32f threshold = 5.0f;
const Ipp8u borderValue = 0;
Ipp8u* pBuffer = NULL; /* Pointer to the work buffer */
int bufSize = 0;
IppiDifferentialKernel filterType = ippFilterSobel; /* Type of derivative operator */
pSrc = ippiMalloc_8u_C1(roiSize.width, roiSize.height, &srcStep);
pDst = ippiMalloc_8u_C1(roiSize.width, roiSize.height, &dstStep);
pFeature = ippiMalloc_8u_C1(roiSize.width, roiSize.height, &featureStep);
/* Computes the temporary work buffer size */
check_sts( status = ippiLineSuppressionGetBufferSize(roiSize, filterMask, avgWndSize, ipp8u, numChannels, &bufSize) )
pBuffer = ippsMalloc_8u(bufSize);
/* Line Suppression processing */
check_sts( status = ippiLineSuppression_8u_C1R(pSrc, srcStep, pFeature, featureStep, pDst, dstStep, roiSize, filterType, filterMask, avgWndSize, threshold, ippBorderRepl, borderValue, pBuffer) )
EXIT_MAIN
ippiFree(pSrc);
ippiFree(pDst);
ippiFree(pFeature);
printf("Exit status %d (%s)\n", (int)status, ippGetStatusString(status));
return (int)status;
}