diff --git a/datasets/raise/extract_noise.py b/datasets/raise/extract_noise.py
index 1fb0cb1..5e00882 100755
--- a/datasets/raise/extract_noise.py
+++ b/datasets/raise/extract_noise.py
@@ -33,35 +33,30 @@ if requiresRaiseFiltering:
 
     imagesFileNames = [imageFileName for imageFileName in tqdm(imagesFileNames, 'Filtering images') if files[imageFileName]['Device'] == 'Nikon D7000' and Image.open(f'{imagesFolderPath}/{imageFileName}').size == (4946, 3278)]
 
+maxGreen = None
+
 def treatImage(imageFileName):
-    global mean, numberOfImagesInMean
+    global mean, numberOfImagesInMean, maxGreen
     imageFilePath = f'{imagesFolderPath}/{imageFileName}'
     if imageFileName.endswith('.NEF'):
-        imageFileName = 'ra2c888f8t.NEF'
-        imageFilePath = f'{imagesFolderPath}/{imageFileName}'
-        print(imageFilePath)
         with rawpy.imread(imageFilePath) as raw:
             colorDesc = raw.color_desc.decode('ascii')
             assert colorDesc == 'RGBG'
-            assert np.array_equal(raw.raw_pattern, np.array([[3, 2], [0, 1]], dtype = np.uint8))
+            assert np.array_equal(raw.raw_pattern, np.array([[0, 1], [3, 2]], dtype = np.uint8))
             rawImageVisible = raw.raw_image_visible.copy()
-            centerY = 2263
-            centerX = 237
-            RANGE = 5
-            rawImageVisible = rawImageVisible.astype(np.float64)
-            rawImageVisibleShape = rawImageVisible.shape
-            for y in range(0, rawImageVisibleShape[0], 2):
-                for x in range(0, rawImageVisibleShape[1], 2):
-                    rawImageVisible[y, x] *= -1
-            print(rawImageVisible[centerY - RANGE:centerY + RANGE, centerX - RANGE:centerX + RANGE])
-            #greenRawImageVisible = raw.rawImageVisible
+            greenRawImageVisible = rawImageVisible[1::2, ::2]
+            greenRawImageVisibleMax = greenRawImageVisible.max()
+            if maxGreen is None or greenRawImageVisibleMax > maxGreen:
+                maxGreen = greenRawImageVisibleMax
+                print(f'{maxGreen=}')
+            imageNpArray = greenRawImageVisible
             # Pay attention to range of values expected by the denoiser.
-            exit(1)
+            #exit(1)
     else:
         imagePil = Image.open(imageFilePath)
         imageNpArray = img_as_float(np.array(imagePil))
     # As the arguments differ from a denoiser to the other should use a match instead.
-    imageDenoisedNpArray = denoise(imageNpArray, channel_axis=-1, convert2ycbcr=True, rescale_sigma=True)
+    imageDenoisedNpArray = denoise(imageNpArray, rescale_sigma=True)
     imageNoiseNpArray = imageNpArray - imageDenoisedNpArray
     if mean is None:
         mean = imageNoiseNpArray