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Merge pull request #3076 from vpisarev:fix_small_filters

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Vadim Pisarevsky 2014-08-11 16:10:15 +00:00
commit a4c883c098
1 changed files with 29 additions and 16 deletions
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45
modules/imgproc/src/filter.cpp
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@ -2635,9 +2635,9 @@ struct SymmColumnSmallFilter : public SymmColumnFilter<CastOp, VecOp>
const ST* ky = (const ST*)this->kernel.data + ksize2;
int i;
bool symmetrical = (this->symmetryType & KERNEL_SYMMETRICAL) != 0;
bool is_1_2_1 = ky[0] == 1 && ky[1] == 2;
bool is_1_m2_1 = ky[0] == 1 && ky[1] == -2;
bool is_m1_0_1 = ky[1] == 1 || ky[1] == -1;
bool is_1_2_1 = ky[0] == 2 && ky[1] == 1;
bool is_1_m2_1 = ky[0] == -2 && ky[1] == 1;
bool is_m1_0_1 = (ky[1] == 1 || ky[1] == -1) && ky[1] == -ky[-1] && ky[0] == 0;
ST f0 = ky[0], f1 = ky[1];
ST _delta = this->delta;
CastOp castOp = this->castOp0;
@ -2668,13 +2668,12 @@ struct SymmColumnSmallFilter : public SymmColumnFilter<CastOp, VecOp>
D[i+2] = castOp(s0);
D[i+3] = castOp(s1);
}
#else
#endif
for( ; i < width; i ++ )
{
ST s0 = S0[i] + S1[i]*2 + S2[i] + _delta;
D[i] = castOp(s0);
}
#endif
}
else if( is_1_m2_1 )
{
@ -2691,13 +2690,12 @@ struct SymmColumnSmallFilter : public SymmColumnFilter<CastOp, VecOp>
D[i+2] = castOp(s0);
D[i+3] = castOp(s1);
}
#else
#endif
for( ; i < width; i ++ )
{
ST s0 = S0[i] - S1[i]*2 + S2[i] + _delta;
D[i] = castOp(s0);
}
#endif
}
else
{
@ -2714,13 +2712,12 @@ struct SymmColumnSmallFilter : public SymmColumnFilter<CastOp, VecOp>
D[i+2] = castOp(s0);
D[i+3] = castOp(s1);
}
#else
#endif
for( ; i < width; i ++ )
{
ST s0 = (S0[i] + S2[i])*f1 + S1[i]*f0 + _delta;
D[i] = castOp(s0);
}
#endif
}
for( ; i < width; i++ )
D[i] = castOp((S0[i] + S2[i])*f1 + S1[i]*f0 + _delta);
@ -2744,17 +2741,14 @@ struct SymmColumnSmallFilter : public SymmColumnFilter<CastOp, VecOp>
D[i+2] = castOp(s0);
D[i+3] = castOp(s1);
}
#else
#endif
for( ; i < width; i ++ )
{
ST s0 = S2[i] - S0[i] + _delta;
D[i] = castOp(s0);
}
#endif
if( f1 < 0 )
std::swap(S0, S2);
}
else
else if( ky[0] == 0 )
{
#if CV_ENABLE_UNROLLED
for( ; i <= width - 4; i += 4 )
@ -2770,10 +2764,29 @@ struct SymmColumnSmallFilter : public SymmColumnFilter<CastOp, VecOp>
D[i+3] = castOp(s1);
}
#endif
for( ; i < width; i++ )
D[i] = castOp((S2[i] - S0[i])*f1 + _delta);
}
else
{
#if CV_ENABLE_UNROLLED
for( ; i <= width - 4; i += 4 )
{
ST s0 = (S2[i] - S0[i])*f1 + S1[i]*f0 + _delta;
ST s1 = (S2[i+1] - S0[i+1])*f1 + S1[i+1]*f0 + _delta;
D[i] = castOp(s0);
D[i+1] = castOp(s1);
s0 = (S2[i+2] - S0[i+2])*f1 + S1[i+2]*f0 + _delta;
s1 = (S2[i+3] - S0[i+3])*f1 + S1[i+2]*f0 + _delta;
D[i+2] = castOp(s0);
D[i+3] = castOp(s1);
}
#endif
for( ; i < width; i++ )
D[i] = castOp((S2[i] - S0[i])*f1 + S1[i]*f0 + _delta);
}
for( ; i < width; i++ )
D[i] = castOp((S2[i] - S0[i])*f1 + _delta);
}
}
}