accela: scale up to thres exponentially, not linearly

1 files changed, 1 insertions, 1 deletions

diff --git a/ftnoir_filter_accela/ftnoir_filter_accela.cpp b/ftnoir_filter_accela/ftnoir_filter_accela.cpp
index d5cd4080..e2073915 100644
--- a/ftnoir_filter_accela/ftnoir_filter_accela.cpp
+++ b/ftnoir_filter_accela/ftnoir_filter_accela.cpp
@@ -22,7 +22,7 @@ static double f(double vec, double thres)
         return (vec - thres*4) * 600 + thres*4;
     if (vec > thres)
         return (vec - thres) * 150 + thres;
-    return vec;
+    return pow(vec / thres, 2.0) * thres;
 }
 
 void FTNoIR_Filter::filter(const double* input, double *output)