Update PresetDatabase.json

PresetDatabase.json

@@ -9,8 +9,8 @@
       "models": [],
       "preprocess_function": "",
       "iterations": 3000,
-      "short_description": "Generic image registration elastix.",
-      "description": "blablabla"
+      "short_description": "Two-stage registration: rigid alignment followed by BSpline refinement."
+      "description": "A combined registration strategy: first a rigid Euler transform corrects global misalignment, then a BSpline model captures localized anatomical deformations. Both stages use a multi-resolution pyramid, mutual information, and stochastic optimization for robust performance across a wide range of multimodal imaging scenarios."
     },
     {
       "display_name": "Generic Rigid",
@@ -20,8 +20,9 @@
       "models": [],
       "preprocess_function": "",
       "iterations": 1000,
-      "short_description": "Generic rigid image registration elastix.",
-      "description": "blablabla"
+      "short_description": "Rigid registration using mutual information and a multi-resolution pyramid."
+
+      "description": "This preset performs rigid alignment using an Euler transform optimized with Adaptive Stochastic Gradient Descent. It uses a 4-level multi-resolution strategy and Mattes mutual information as similarity metric. Initial alignment based on image centers are enabled to ensure robust convergence for multimodal images."
     },
     {
        "display_name": "IMPACT BSpline M730",