NaNs in input data are now changed to zeros to make the viewer functional for such files.

vviewer/loadImage.py

@@ -158,6 +158,12 @@ def loadImageFromFile(filename, pref, f_type):
         except RuntimeError:
             print("Cannot load .v file given!")
 
+    # if data contain NaNs convert to zero
+    if np.isnan(image.get_data()).any():
+        notnan = image.get_data()
+        notnan[np.isnan(image.get_data())] = 0
+        image = Nifti1Image(notnan, image.affine)
+
     # allow 2d-images here:
     if len(image.get_data().shape) == 2:
        image = Nifti1Image(np.atleast_3d(image.get_data()), image.affine)