diff --git a/iss/tools/config.py b/iss/tools/config.py
index c2d9635..4df03ac 100644
--- a/iss/tools/config.py
+++ b/iss/tools/config.py
@@ -19,7 +19,6 @@ class Config:
 
 		yaml.add_implicit_resolver('!path', self.path_matcher, None, yaml.SafeLoader)
 		yaml.add_constructor('!path', self.path_constructor, yaml.SafeLoader)
-		print("ok")
 
 		with open(os.path.join(self.project_dir, 'config', 'config_%s.yaml' % (self.mode)), 'r') as ymlfile:
 			self.config = yaml.safe_load(ymlfile)
diff --git a/iss/tools/tools.py b/iss/tools/tools.py
new file mode 100644
index 0000000..27a76ea
--- /dev/null
+++ b/iss/tools/tools.py
@@ -0,0 +1,32 @@
+# -*- coding: utf-8 -*-
+
+import PIL
+import os
+
+class Tools:
+
+	@staticmethod
+	def display_one_picture(array):
+		array = array.astype('uint8')
+		return PIL.Image.fromarray(array, 'RGB')
+
+	@staticmethod
+	def display_one_picture_scaled(array):
+		array = array * 255
+		return Tools.display_one_picture(array)
+
+	@staticmethod
+	def display_index_picture_scaled(array, index = 0):
+		return Tools.display_one_picture_scaled(array[index])
+
+	@staticmethod
+	def display_index_picture(array, index = 0):
+		return Tools.display_one_picture(array[index])
+
+	@staticmethod
+	def create_dir_if_not_exists(path):
+		if not os.path.exists(path):
+			os.makedirs(path)
+		return path
+
+