/*******************************************************************************
* 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 gradient flood filling of connected area
// using Intel(R) Integrated Primitives (Intel(R) IPP) functions:
// ippiFloodFillGetSize_Grad
// ippiFloodFill_Grad4Con_8u_C1IR
#include <stdio.h>
#include "ipp.h"
#define WIDTH 8 /* source image width */
#define HEIGHT 8 /* source 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 */
static Ipp8u pImage[WIDTH*HEIGHT] = /* Pointer to ROI of initial image */
{
0, 1, 2, 3, 4, 5, 6, 7,
0, 1, 2, 3, 4, 5, 6, 7,
0, 1, 2, 3, 4, 5, 6, 7,
0, 1, 2, 3, 4, 5, 6, 7,
0, 1, 2, 3, 4, 5, 6, 7,
0, 1, 2, 3, 4, 5, 6, 7,
0, 1, 2, 3, 4, 5, 6, 7,
0, 1, 2, 3, 4, 5, 6, 7
};
int main(void)
{
IppStatus status = ippStsNoErr;
int imageStep = WIDTH; /* Steps, in bytes, through the source images */
IppiSize roiSize = { WIDTH, HEIGHT};/* Size of source ROI in pixels */
IppiConnectedComp pRegion; /* Pointer to repainted region properties structure */
IppiPoint seedPoint = {1,0}; /* Coordinates of the seed point inside image ROI */
Ipp8u PointNewValue = 1; /* Value to fill with for one-channel data */
Ipp8u* pBuffer = NULL; /* Pointer to the work buffer */
Ipp8u minDelta=1, maxDelta=1; /* Minimum/maximum difference between neighbour pixels for one-channel data */
int bufferSize = 0;
/* Calculate size of temporary buffer for flood filling operation */
check_sts( status = ippiFloodFillGetSize_Grad(roiSize, &bufferSize) )
pBuffer = ippsMalloc_8u(bufferSize);
/* Perform gradient flood filling of 4-connected area */
check_sts( status = ippiFloodFill_Grad4Con_8u_C1IR(pImage, imageStep, roiSize, seedPoint, PointNewValue, minDelta, maxDelta, &pRegion, pBuffer) )
EXIT_MAIN
ippsFree(pBuffer);
printf("Exit status %d (%s)\n", (int)status, ippGetStatusString(status));
return (int)status;
}