diff --git a/backend/src/Service/SentinelHub/SentinelHubClient.php b/backend/src/Service/SentinelHub/SentinelHubClient.php
index 6d2c621..cdda715 100644
--- a/backend/src/Service/SentinelHub/SentinelHubClient.php
+++ b/backend/src/Service/SentinelHub/SentinelHubClient.php
@@ -145,7 +145,7 @@ class SentinelHubClient
 //VERSION=3
 function setup() {
   return {
-    input: [{ bands: ["B04", "B08", "B11", "CLP"], units: "REFLECTANCE" }],
+    input: [{ bands: ["B03", "B04", "B08", "B11", "CLP"], units: "REFLECTANCE" }],
     output: { bands: 1, sampleType: "UINT8" }
   };
 }
@@ -153,6 +153,10 @@ function setup() {
 function evaluatePixel(sample) {
   if (sample.CLP > 0.4) { return [255]; } // nodata : nuage
 
+  // Masque eau : NDWI = (Green - NIR) / (Green + NIR) — terre si <= 0
+  const ndwi = (sample.B03 - sample.B08) / (sample.B03 + sample.B08);
+  if (ndwi <= 0) { return [0]; }
+
   const lambdaRed  = 664.5;
   const lambdaNir  = 832.8;
   const lambdaSwir = 1613.7;
@@ -178,16 +182,19 @@ EVALSCRIPT;
 //VERSION=3
 function setup() {
   return {
-    input: [{ bands: ["B08", "B11", "B17"], units: "REFLECTANCE" }],
+    input: [{ bands: ["B06", "B08", "B11", "B17"], units: "REFLECTANCE" }],
     output: { bands: 1, sampleType: "UINT8" }
   };
 }
 
 function evaluatePixel(sample) {
+  // Masque eau : NDWI = (Green B06 560nm - NIR B17 865nm) / (Green + NIR)
+  const ndwi = (sample.B06 - sample.B17) / (sample.B06 + sample.B17);
+  if (ndwi <= 0) { return [0]; }
+
   const lambdaRed     = 665.0;
   const lambdaRedEdge = 708.75;
   const lambdaNir     = 865.0;
-  const ratio = (lambdaNir - lambdaRed) / (lambdaRedEdge - lambdaRed);
 
   // MCI : baseline interpolée entre Red et RedEdge
   const baseline = sample.B08 + (sample.B11 - sample.B08) * (lambdaNir - lambdaRed) / (lambdaRedEdge - lambdaRed);