diff --git a/grdwindinversion/gradientFeatures.py b/grdwindinversion/gradientFeatures.py
index 43806e9..a122a62 100644
--- a/grdwindinversion/gradientFeatures.py
+++ b/grdwindinversion/gradientFeatures.py
@@ -1,5 +1,4 @@
 import xsarsea.gradients
-import cv2
 import xarray as xr
 import xarray as xr
 from scipy.ndimage import binary_dilation
@@ -55,6 +54,7 @@ def _compute_gradients(self):
         None
 
         """
+
         self.gradients = xsarsea.gradients.Gradients(
             self.xr_dataset_100['sigma0_detrend'],
             windows_sizes=self.windows_sizes,
@@ -111,8 +111,14 @@ def get_heterogeneity_mask(self, config):
                 sig = xr.where(sig <= 0, 1e-15, sig)
 
                 # map incidence for detrend
-                incidence = xr.DataArray(data=cv2.resize(
-                    self.xr_dataset_100.incidence.values, sig.shape[::-1], cv2.INTER_NEAREST), dims=sig.dims, coords=sig.coords)
+                # incidence = xr.DataArray(data=cv2.resize(
+                #    self.xr_dataset_100.incidence.values, sig.shape[::-1], cv2.INTER_NEAREST), dims=sig.dims, coords=sig.coords)
+
+                incidence = self.xr_dataset_100.incidence.interp(
+                    line=sig.coords['line'],
+                    sample=sig.coords['sample'],
+                    method="nearest"  # Équivaut à INTER_NEAREST
+                )
 
                 sigma0_detrend = xsarsea.sigma0_detrend(sig, incidence)
 
diff --git a/grdwindinversion/inversion.py b/grdwindinversion/inversion.py
index 158c14d..4cae8f1 100644
--- a/grdwindinversion/inversion.py
+++ b/grdwindinversion/inversion.py
@@ -1,3 +1,17 @@
+## To place here in the code to not have errors with cv2. 
+## if placed in main => error .. 
+import os
+os.environ["OMP_NUM_THREADS"] = "1"
+os.environ["OPENBLAS_NUM_THREADS"] = "1"
+os.environ["MKL_NUM_THREADS"] = "1"
+os.environ["VECLIB_MAXIMUM_THREADS"] = "1"
+os.environ["NUMEXPR_NUM_THREADS"] = "1"
+try : 
+    import cv2
+except:
+    import cv2
+cv2.setNumThreads(1)
+
 import tempfile
 import traceback
 
@@ -602,7 +616,7 @@ def preprocess(filename, outdir, config_path, overwrite=False, add_gradientsfeat
         add_nrcs_model = config_base["add_nrcs_model"]
         add_nrcs_model = False
         logging.warning(
-            f'Force this variable to be false, before fixing the issue'
+            f'Force add_nrcs_model to be false, before fixing an issue'
         )
     else:
         add_nrcs_model = False
diff --git a/grdwindinversion/main.py b/grdwindinversion/main.py
index d9456d6..af10d4d 100644
--- a/grdwindinversion/main.py
+++ b/grdwindinversion/main.py
@@ -25,6 +25,12 @@ def processor_starting_point():
                         help="En cas d'activation, désactive la génération du .csv")
 
     args = parser.parse_args()
+
+
+
+        
+
+
     fmt = '%(asctime)s %(levelname)s %(filename)s(%(lineno)d) %(message)s'
     if args.verbose:
         logging.basicConfig(level=logging.DEBUG, format=fmt,