diff --git a/meshroom/nodes/aliceVision/LdrToHdrMerge.py b/meshroom/nodes/aliceVision/LdrToHdrMerge.py
index 5b71849f68..b7c9b4e636 100644
--- a/meshroom/nodes/aliceVision/LdrToHdrMerge.py
+++ b/meshroom/nodes/aliceVision/LdrToHdrMerge.py
@@ -91,6 +91,32 @@ class LdrToHdrMerge(desc.AVCommandLineNode):
             uid=[0],
             enabled= lambda node: (node.nbBrackets.value != 1 and not node.offsetRefBracketIndexEnabled.value),
         ),
+        desc.FloatParam(
+            name='minSignificantValue',
+            label='Minimum Significant Value',
+            description='Minimum channel input value to be considered in advanced pixelwise merging.',
+            value=0.05,
+            range=(0.0, 1.0, 0.001),
+            uid=[0],
+            enabled= lambda node: (node.nbBrackets.value != 1),
+        ),
+        desc.FloatParam(
+            name='maxSignificantValue',
+            label='Maximum Significant Value',
+            description='Maximum channel input value to be considered in advanced pixelwise merging.',
+            value=0.995,
+            range=(0.0, 1.0, 0.001),
+            uid=[0],
+            enabled= lambda node: (node.nbBrackets.value != 1),
+        ),
+        desc.BoolParam(
+            name='computeLightMasks',
+            label='Compute Light Masks',
+            description="Compute masks of low and high lights and missing info.",
+            value=False,
+            uid=[0],
+            enabled= lambda node: node.nbBrackets.value != 1,
+        ),
         desc.BoolParam(
             name='byPass',
             label='Bypass',