Update utils.py

Changed unsafe basename extraction:
`file_name = i.split('.')[0]` to `file_name = os.path.splitext(i)[0]`
and
`filename = n[i].split('.')[0]` to `filename = os.path.splitext(n[i])[0]`
because
`"Vat.sam.2_206.jpg` -> `Vat` instead of `"Vat.sam.2_206`

utils.py

@@ -374,7 +374,7 @@ def generate_arrays_from_folder_reading_order(classes_file_dir, modal_dir, batch
     batchcount = 0
     while True:
         for i in all_labels_files:
-            file_name = i.split('.')[0]
+            file_name = os.path.splitext(i)[0]
             img = cv2.imread(os.path.join(modal_dir,file_name+'.png'))
 
             label_class = int( np.load(os.path.join(classes_file_dir,i)) )
@@ -401,7 +401,7 @@ def data_gen(img_folder, mask_folder, batch_size, input_height, input_width, n_c
 
         for i in range(c, c + batch_size):  # initially from 0 to 16, c = 0.
             try:
-                filename = n[i].split('.')[0]
+                filename = os.path.splitext(n[i])[0]
 
                 train_img = cv2.imread(img_folder + '/' + n[i]) / 255.
                 train_img = cv2.resize(train_img, (input_width, input_height),