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cv::compareHist (CV_COMP_INTERSECT)

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This commit is contained in:
Ilya Lavrenov 2014-10-12 10:16:59 -07:00
parent 5ca25ab8f0
commit 4ed696d770
1 changed files with 10 additions and 1 deletions
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11
modules/imgproc/src/histogram.cpp
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@ -2316,7 +2316,16 @@ double cv::compareHist( InputArray _H1, InputArray _H2, int method )
} }
else if( method == CV_COMP_INTERSECT ) else if( method == CV_COMP_INTERSECT )
{ {
for( j = 0; j < len; j++ ) j = 0;
#if CV_NEON
float32x4_t v_result = vdupq_n_f32(0.0f);
for( ; j <= len - 4; j += 4 )
v_result = vaddq_f32(v_result, vminq_f32(vld1q_f32(h1 + j), vld1q_f32(h2 + j)));
float CV_DECL_ALIGNED(16) ar[4];
vst1q_f32(ar, v_result);
result += ar[0] + ar[1] + ar[2] + ar[3];
#endif
for( ; j < len; j++ )
result += std::min(h1[j], h2[j]); result += std::min(h1[j], h2[j]);
} }
else if( method == CV_COMP_BHATTACHARYYA ) else if( method == CV_COMP_BHATTACHARYYA )