diff --git a/deepdespeckling/merlin/merlin_denoiser.py b/deepdespeckling/merlin/merlin_denoiser.py
index 92ae78e..04367d4 100644
--- a/deepdespeckling/merlin/merlin_denoiser.py
+++ b/deepdespeckling/merlin/merlin_denoiser.py
@@ -165,9 +165,9 @@ def preprocess_denoised_image(self, denoised_image_real_part: np.array, denoised
             processed denoised full image, processed denoised image real part, processed denoised image imaginary part
         """
         denoised_image_real_part = denormalize_sar_image(
-            denoised_image_real_part / count_image)
+            denoised_image_real_part / count_image, self.M, self.m)
         denoised_image_imaginary_part = denormalize_sar_image(
-            denoised_image_imaginary_part / count_image)
+            denoised_image_imaginary_part / count_image, self.M, self.m)
 
         # combine the two estimation
         output_clean_image = 0.5 * (np.square(
diff --git a/deepdespeckling/utils/utils.py b/deepdespeckling/utils/utils.py
index cb8e23c..f207a17 100644
--- a/deepdespeckling/utils/utils.py
+++ b/deepdespeckling/utils/utils.py
@@ -22,11 +22,13 @@ def normalize_sar_image(image: np.array) -> np.array:
     return ((np.log(np.clip(image, 0, image.max())+1e-6)-m)/(M-m)).astype(np.float32)
 
 
-def denormalize_sar_image(image: np.array) -> np.array:
+def denormalize_sar_image(image: np.array, M: float = M, m: float = m) -> np.array:
     """Denormalize a sar image store in  a numpy array
 
     Args:
         image (numpy array): a sar image
+        M (float): global maximum used for normalisation
+        m (float): global minimum used for normalisation
 
     Raises:
         TypeError: raise an error if the image file is not a numpy array
diff --git a/setup.py b/setup.py
index 2c5aea5..99efb61 100644
--- a/setup.py
+++ b/setup.py
@@ -6,7 +6,7 @@
 
 
 setup(
-    author="Emanuele Dalsasso, Youcef Kemiche, Pierre Blanchard, Hadrien Mariaccia",
+    author="Emanuele Dalsasso, Hadrien Mariaccia, Youcef Kemiche, Pierre Blanchard",
     author_email='engineer@hi-paris.fr',
     python_requires='>=3.6',
     classifiers=[
@@ -40,6 +40,6 @@
     name='deepdespeckling',
     packages=find_packages(include=['deepdespeckling', 'deepdespeckling.*']),
     url='https://github.com/hi-paris/deepdespeckling',
-    version='0.7',
+    version='0.8',
     zip_safe=False,
 )