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pull/547/head
Vadim Pisarevsky 12 years ago
parent 087537463d
commit 416432a8e5
1 changed files with 24 additions and 24 deletions
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  1. 48
      modules/core/src/lapack.cpp

48
modules/core/src/lapack.cpp
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@ -1096,30 +1096,30 @@ double cv::invert( InputArray _src, OutputArray _dst, int method )
{
double d = det3(Sf);
if( fabs(d) < 1e-4 || fabs(d) > 1e4 )
result = invert(src, dst, DECOMP_SVD) > 0;
else
{
float t[12];
float df = (float)(1./d);
result = true;
t[0] = (Sf(1,1) * Sf(2,2) - Sf(1,2) * Sf(2,1)) * df;
t[1] = (Sf(0,2) * Sf(2,1) - Sf(0,1) * Sf(2,2)) * df;
t[2] = (Sf(0,1) * Sf(1,2) - Sf(0,2) * Sf(1,1)) * df;
t[3] = (Sf(1,2) * Sf(2,0) - Sf(1,0) * Sf(2,2)) * df;
t[4] = (Sf(0,0) * Sf(2,2) - Sf(0,2) * Sf(2,0)) * df;
t[5] = (Sf(0,2) * Sf(1,0) - Sf(0,0) * Sf(1,2)) * df;
t[6] = (Sf(1,0) * Sf(2,1) - Sf(1,1) * Sf(2,0)) * df;
t[7] = (Sf(0,1) * Sf(2,0) - Sf(0,0) * Sf(2,1)) * df;
t[8] = (Sf(0,0) * Sf(1,1) - Sf(0,1) * Sf(1,0)) * df;
Df(0,0) = t[0]; Df(0,1) = t[1]; Df(0,2) = t[2];
Df(1,0) = t[3]; Df(1,1) = t[4]; Df(1,2) = t[5];
Df(2,0) = t[6]; Df(2,1) = t[7]; Df(2,2) = t[8];
}
if( fabs(d) < 1e-4 || fabs(d) > 1e4 )
result = invert(src, dst, DECOMP_SVD) > 0;
else
{
float t[12];
float df = (float)(1./d);
result = true;
t[0] = (Sf(1,1) * Sf(2,2) - Sf(1,2) * Sf(2,1)) * df;
t[1] = (Sf(0,2) * Sf(2,1) - Sf(0,1) * Sf(2,2)) * df;
t[2] = (Sf(0,1) * Sf(1,2) - Sf(0,2) * Sf(1,1)) * df;
t[3] = (Sf(1,2) * Sf(2,0) - Sf(1,0) * Sf(2,2)) * df;
t[4] = (Sf(0,0) * Sf(2,2) - Sf(0,2) * Sf(2,0)) * df;
t[5] = (Sf(0,2) * Sf(1,0) - Sf(0,0) * Sf(1,2)) * df;
t[6] = (Sf(1,0) * Sf(2,1) - Sf(1,1) * Sf(2,0)) * df;
t[7] = (Sf(0,1) * Sf(2,0) - Sf(0,0) * Sf(2,1)) * df;
t[8] = (Sf(0,0) * Sf(1,1) - Sf(0,1) * Sf(1,0)) * df;
Df(0,0) = t[0]; Df(0,1) = t[1]; Df(0,2) = t[2];
Df(1,0) = t[3]; Df(1,1) = t[4]; Df(1,2) = t[5];
Df(2,0) = t[6]; Df(2,1) = t[7]; Df(2,2) = t[8];
}
}
else
{

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