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fixed kmeans

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This commit is contained in:
Maria Dimashova 2012-04-10 10:06:28 +00:00
parent 7e06b18144
commit 74b38e978b
1 changed files with 4 additions and 4 deletions
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8
modules/core/src/matrix.cpp
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@ -2610,18 +2610,18 @@ double cv::kmeans( InputArray _data, int K,
double max_dist = 0; double max_dist = 0;
int farthest_i = -1; int farthest_i = -1;
float* new_center = centers.ptr<float>(k); float* new_center = centers.ptr<float>(k);
float* _old_center = centers.ptr<float>(max_k); float* old_center = centers.ptr<float>(max_k);
float* old_center = temp.ptr<float>(); float* _old_center = temp.ptr<float>(); // normalized
float scale = 1.f/counters[max_k]; float scale = 1.f/counters[max_k];
for( j = 0; j < dims; j++ ) for( j = 0; j < dims; j++ )
old_center[j] = _old_center[j]*scale; _old_center[j] = old_center[j]*scale;
for( i = 0; i < N; i++ ) for( i = 0; i < N; i++ )
{ {
if( labels[i] != max_k ) if( labels[i] != max_k )
continue; continue;
sample = data.ptr<float>(i); sample = data.ptr<float>(i);
double dist = normL2Sqr_(sample, old_center, dims); double dist = normL2Sqr_(sample, _old_center, dims);
if( max_dist <= dist ) if( max_dist <= dist )
{ {