Bug fix for MLP predict for small values to avoid nan responses.

modules/ml/src/ann_mlp.cpp

@@ -431,10 +431,17 @@ public:
                 {
                     double* data = sums.ptr<double>(i);
                     for( j = 0; j < cols; j++ )
+                    {
+                        if(!cvIsInf(data[j]))
                         {
                             double t = scale2*(1. - data[j])/(1. + data[j]);
                             data[j] = t;
                         }
+                        else
+                        {
+                            data[j] = -scale2;
+                        }
+                    }
                 }
                 break;