From 39c23ea0bdbad9b70f5b0839946617d02fdc82e1 Mon Sep 17 00:00:00 2001
From: Maria Dimashova <no@email>
Date: Tue, 10 Apr 2012 11:06:21 +0000
Subject: [PATCH] replaced using cv::exp

---
 modules/ml/src/em.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/modules/ml/src/em.cpp b/modules/ml/src/em.cpp
index 130c9b87a..f2f3520f1 100644
--- a/modules/ml/src/em.cpp
+++ b/modules/ml/src/em.cpp
@@ -503,8 +503,11 @@ void EM::computeProbabilities(const Mat& sample, int& label, Mat* probs, double*
         return;
 
     Mat buf, *sampleProbs = probs ? probs : &buf;
-    Mat expL_Lmax;
-    exp(L - L.at<double>(label), expL_Lmax);
+    Mat expL_Lmax(L.size(), CV_64FC1);
+    double maxLVal = L.at<double>(label);
+    for(int i = 0; i < L.cols; i++)
+        expL_Lmax.at<double>(i) = std::exp(L.at<double>(i) - maxLVal);
+
     double partSum = 0, // sum_j!=q (exp(L_ij - L_iq))
            factor;      // 1/(1 + partExpSum)
     for(int clusterIndex = 0; clusterIndex < nclusters; clusterIndex++)