Update Super_IVIM_DC.py

Author: oliverchampion

src/standardized/Super_IVIM_DC.py

@@ -112,9 +112,9 @@ def ivim_fit(self, signals, bvalues, **kwargs):
         f = float(np.atleast_1d(f).ravel()[0])
 
         results = {}
-        results["D"] = Dt
-        results["f"] = f
-        results["Dp"] = Dp
+        results["D"] = safe_scalar(float(np.array(Dt).item()))
+        results["f"] = safe_scalar(float(np.array(f).item()))
+        results["Dp"] = safe_scalar(float(np.array(Dp).item()))
 
         return results
 
@@ -163,3 +163,9 @@ def reshape_to_voxelwise(self, data):
         voxels = int(np.prod(data.shape[:-1]))  # e.g., X*Y*Z
         return data.reshape(voxels, B), data.shape
 
+def safe_scalar(val):
+    """Ensure val is always a Python float scalar."""
+    try:
+        return float(np.array(val).ravel()[0])
+    except Exception:
+        return 0.0  # fallback if conversion fails