opencv/modules/legacy/src/morphing.cpp

393 lines
15 KiB
C++

/*M///////////////////////////////////////////////////////////////////////////////////////
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#include "precomp.hpp"
#include <assert.h>
static CvStatus
icvMorphEpilines8uC3( uchar * first_pix, /* raster epiline from image 1 */
uchar * second_pix, /* raster epiline from image 2 */
uchar * dst_pix, /* raster epiline from dest image */
/* (it's an output parameter) */
float alpha, /* relative position of camera */
int *first, /* first sequence of runs */
int first_runs, /* it's length */
int *second, /* second sequence of runs */
int second_runs, int *first_corr, /* corr data for the 1st seq */
int *second_corr, /* corr data for the 2nd seq */
int dst_len )
{
float alpha1; /* alpha - 1.0 */
int s, s1; /* integer variant of alpha and alpha1 ( 0 <= s,s1 <= 256 ) */
int curr; /* current index in run's array */
float begLine; /* begin of current run */
float endLine; /* end of current run */
float begCorr; /* begin of correspondence destination of run */
float endCorr; /* end of correspondence destination of run */
int begDestLine; /* begin of current destanation of run */
int endDestLine; /* end of current destanation of run */
int begLineIndex;
int endLineIndex;
int indexImg1;
float step = 0;
int n;
memset( dst_pix, 0, dst_len );
alpha1 = (float) (1.0 - alpha);
s = (int) (alpha * 256);
s1 = 256 - s;
/* --------------Create first line------------- */
begLineIndex = first[0];
begLine = (float) begLineIndex;
curr = 0;
for( n = 0; n < first_runs; n++ )
{ /* for each run */
begCorr = (float) first_corr[curr];
curr++;
endCorr = (float) first_corr[curr];
curr++;
endLineIndex = first[curr];
endLine = (float) endLineIndex;
begDestLine = (int) (alpha * begLine + alpha1 * begCorr);
endDestLine = (int) (alpha * endLine + alpha1 * endCorr);
indexImg1 = begDestLine * 3;
step = 0;
if( endDestLine != begDestLine )
step = (endLine - begLine) / ((float) (endDestLine - begDestLine));
if( begCorr != endCorr )
{
for( ; begDestLine < endDestLine; begDestLine++ )
{
/* for each pixel */
begLineIndex = (int) begLine;
begLineIndex *= 3;
/* Blend R */
dst_pix[indexImg1] = (uchar) (((int) (first_pix[begLineIndex]) * s) >> 8);
indexImg1++;
/* Blend G */
dst_pix[indexImg1] = (uchar) (((int) (first_pix[begLineIndex + 1]) * s) >> 8);
indexImg1++;
/* Blend B */
dst_pix[indexImg1] = (uchar) (((int) (first_pix[begLineIndex + 2]) * s) >> 8);
indexImg1++;
begLine += step;
} /* for */
}
else
{
for( ; begDestLine < endDestLine; begDestLine++ )
{
/* for each pixel */
begLineIndex = (int) begLine;
begLineIndex *= 3;
/* Blend R */
dst_pix[indexImg1] = first_pix[begLineIndex];
indexImg1++;
/* Blend G */
dst_pix[indexImg1] = first_pix[begLineIndex + 1];
indexImg1++;
/* Blend B */
dst_pix[indexImg1] = first_pix[begLineIndex + 2];
indexImg1++;
begLine += step;
} /* for */
} /* if */
begLineIndex = endLineIndex;
begLine = endLine;
} /* for each runs in first line */
begLineIndex = second[0];
begLine = (float) begLineIndex;
curr = 0;
/* --------------Create second line------------- */
curr = 0;;
for( n = 0; n < second_runs; n++ )
{ /* for each run */
begCorr = (float) second_corr[curr];
curr++;
endCorr = (float) second_corr[curr];
curr++;
endLineIndex = second[curr];
endLine = (float) endLineIndex;
begDestLine = (int) (alpha1 * begLine + alpha * begCorr);
endDestLine = (int) (alpha1 * endLine + alpha * endCorr);
indexImg1 = begDestLine * 3;
step = 0;
if (endDestLine != begDestLine)
step = (endLine - begLine) / ((float) (endDestLine - begDestLine));
if( begCorr != endCorr )
{
for( ; begDestLine < endDestLine; begDestLine++ )
{
/* for each pixel */
begLineIndex = (int) begLine;
begLineIndex *= 3;
/* Blend R */
dst_pix[indexImg1] =
(uchar) (dst_pix[indexImg1] +
(uchar) (((unsigned int) (second_pix[begLineIndex]) * s1) >> 8));
indexImg1++;
/* Blend G */
dst_pix[indexImg1] =
(uchar) (dst_pix[indexImg1] +
(uchar) (((unsigned int) (second_pix[begLineIndex + 1]) * s1) >>
8));
indexImg1++;
/* Blend B */
dst_pix[indexImg1] =
(uchar) (dst_pix[indexImg1] +
(uchar) (((unsigned int) (second_pix[begLineIndex + 2]) * s1) >>
8));
indexImg1++;
begLine += step;
} /* for */
}
else
{
for( ; begDestLine < endDestLine; begDestLine++ )
{
/* for each pixel */
begLineIndex = (int) begLine;
begLineIndex *= 3;
/* Blend R */
dst_pix[indexImg1] = (uchar) (dst_pix[indexImg1] + second_pix[begLineIndex]);
indexImg1++;
/* Blend G */
dst_pix[indexImg1] =
(uchar) (dst_pix[indexImg1] + second_pix[begLineIndex + 1]);
indexImg1++;
/* Blend B */
dst_pix[indexImg1] =
(uchar) (dst_pix[indexImg1] + second_pix[begLineIndex + 2]);
/*assert(indexImg1 < dst_len); */
indexImg1++;
begLine += step;
} /* for */
} /* if */
begLineIndex = endLineIndex;
begLine = endLine;
} /* for each runs in second line */
return CV_NO_ERR;
} /* icvMorphEpilines8uC3 */
/*======================================================================================*/
static CvStatus
icvMorphEpilines8uC3Multi( int lines, /* number of lines */
uchar * first_pix, /* raster epilines from the first image */
int *first_num, /* numbers of pixel in first line */
uchar * second_pix, /* raster epilines from the second image */
int *second_num, /* numbers of pixel in second line */
uchar * dst_pix, /* raster epiline from the destination image */
/* (it's an output parameter) */
int *dst_num, /* numbers of pixel in output line */
float alpha, /* relative position of camera */
int *first, /* first sequence of runs */
int *first_runs, /* it's length */
int *second, /* second sequence of runs */
int *second_runs, int *first_corr, /* correspond information for the 1st seq */
int *second_corr ) /* correspond information for the 2nd seq */
{
CvStatus error;
int currLine;
int currFirstPix = 0;
//int currFirstNum = 0;
int currSecondPix = 0;
//int currSecondNum = 0;
int currDstPix = 0;
int currFirst = 0;
//int currFirstRuns = 0;
int currSecond = 0;
//int currSecondRuns = 0;
int currFirstCorr = 0;
int currSecondCorr = 0;
if( lines < 1 ||
first_pix == 0 ||
first_num == 0 ||
second_pix == 0 ||
second_num == 0 ||
dst_pix == 0 ||
dst_num == 0 ||
alpha < 0 ||
alpha > 1 ||
first == 0 ||
first_runs == 0 ||
second == 0 || second_runs == 0 || first_corr == 0 || second_corr == 0 )
return CV_BADFACTOR_ERR;
for( currLine = 0; currLine < lines; currLine++ )
{
error = icvMorphEpilines8uC3( &(first_pix[currFirstPix]),
&(second_pix[currSecondPix]),
&(dst_pix[currDstPix]),
alpha,
&(first[currFirst]),
first_runs[currLine],
&(second[currSecond]),
second_runs[currLine],
&(first_corr[currFirstCorr]),
&(second_corr[currSecondCorr]), dst_num[currLine] * 3 );
if( error != CV_NO_ERR )
return CV_NO_ERR;
currFirstPix += first_num[currLine] * 3;
currSecondPix += second_num[currLine] * 3;
currDstPix += dst_num[currLine] * 3;
currFirst += (first_runs[currLine] * 2) + 1;
currSecond += (second_runs[currLine] * 2) + 1;
currFirstCorr += first_runs[currLine] * 2;
currSecondCorr += second_runs[currLine] * 2;
} /* for */
return CV_NO_ERR;
} /* icvMorphEpilines8uC3Multi */
/*======================================================================================*/
CV_IMPL void
cvMorphEpilinesMulti( int lines, /* number of lines */
uchar * first_pix, /* raster epilines from the first image */
int *first_num, /* numbers of pixel in first line */
uchar * second_pix, /* raster epilines from the second image */
int *second_num, /* numbers of pixel in second line */
uchar * dst_pix, /* raster epiline from the destination image */
/* (it's an output parameter) */
int *dst_num, /* numbers of pixel in output line */
float alpha, /* relative position of camera */
int *first, /* first sequence of runs */
int *first_runs, /* it's length */
int *second, /* second sequence of runs */
int *second_runs, int *first_corr, /* correspond information for the 1st seq */
int *second_corr /* correspond information for the 2nd seq */
)
{
IPPI_CALL( icvMorphEpilines8uC3Multi( lines, /* number of lines */
first_pix, /* raster epilines from the first image */
first_num, /* numbers of pixel in first line */
second_pix, /* raster epilines from the second image */
second_num, /* numbers of pixel in second line */
dst_pix, /* raster epiline from the destination image */
/* (it's an output parameter) */
dst_num, /* numbers of pixel in output line */
alpha, /* relative position of camera */
first, /* first sequence of runs */
first_runs, /* it's length */
second, /* second sequence of runs */
second_runs, first_corr, /* correspond information for the 1st seq */
second_corr /* correspond information for the 2nd seq */
));
}