(no commit message)

diff --git a/MagickCore/colorspace.c b/MagickCore/colorspace.c
index f1104b26c8644731631f5a9512e1cd162fe45153..3bb2e9a67dffde83cf6f37932c9859179324dd83 100644 (file)
--- a/MagickCore/colorspace.c
+++ b/MagickCore/colorspace.c
@@ -1278,11 +1278,11 @@ static void ConvertYIQToRGB(const double Y,const double I,const double Q,
 static void ConvertYDbDrToRGB(const double Y,const double Db,const double Dr,
   double *red,double *green,double *blue)
 {
-  *red=QuantumRange*(Y-9.2303716147657e-05*(Db-0.5)+
+  *red=QuantumRange*(Y+9.2303716147657e-05*(Db-0.5)-
     0.52591263066186533*(Dr-0.5));
-  *green=QuantumRange*(Y-12913289889050927*(Db-0.5)-
+  *green=QuantumRange*(Y-0.12913289889050927*(Db-0.5)+
     0.26789932820759876*(Dr-0.5));
-  *blue=QuantumRange*(Y+0.66467905997895482*(Db-0.5)+
+  *blue=QuantumRange*(Y+0.66467905997895482*(Db-0.5)-
     7.9202543533108e-05*(Dr-0.5));
 }