--- a/Core/Images/ImageProcessing.cpp	Sat May 14 13:41:42 2016 +0200
+++ b/Core/Images/ImageProcessing.cpp	Tue May 17 15:45:49 2016 +0200
@@ -79,6 +79,8 @@
   static void ConvertGrayscaleToFloat(ImageAccessor& target,
                                       const ImageAccessor& source)
   {
+    assert(sizeof(float) == 4);
+
     for (unsigned int y = 0; y < source.GetHeight(); y++)
     {
       float* t = reinterpret_cast<float*>(target.GetRow(y));
@@ -539,6 +541,11 @@
         SetInternal<int16_t>(image, value);
         return;
 
+      case PixelFormat_Float32:
+        assert(sizeof(float) == 4);
+        SetInternal<float>(image, value);
+        return;
+
       default:
         throw OrthancException(ErrorCode_NotImplemented);
     }