diff --git a/AMi_Image_Analysis.py b/AMi_Image_Analysis.py
index 06b3c01..c3ea3c3 100755
--- a/AMi_Image_Analysis.py
+++ b/AMi_Image_Analysis.py
@@ -17,7 +17,7 @@
 from PyQt5.QtGui import QPixmap, QFont, QColor, QKeySequence
 QtWidgets.QApplication.setAttribute(QtCore.Qt.AA_EnableHighDpiScaling, True) #enable highdpi scaling
 QtWidgets.QApplication.setAttribute(QtCore.Qt.AA_UseHighDpiPixmaps, True) #use highdpi icons
-from PyQt5.QtWidgets import (QLabel, QTableWidgetItem, QFileDialog,
+from PyQt5.QtWidgets import (QLabel, QTableWidgetItem, QFileDialog, QSplashScreen,
     QMessageBox, QGridLayout,QStyleFactory, QProgressDialog, QInputDialog, QLineEdit)
 
 from utils import ensure_directory
@@ -29,12 +29,11 @@
 import Merge_Zstack
 import ReadScreen
 import preferences as pref
-import cv2
 
 
 __version__ = "1.2.2"
 __author__ = "Ludovic Pecqueur (ludovic.pecqueur \at college-de-france.fr)"
-__date__ = "25-05-2020"
+__date__ = "16-06-2020"
 __license__ = "New BSD http://www.opensource.org/licenses/bsd-license.php"
 
 
@@ -66,8 +65,9 @@ def Citation():
 class ViewerModule(QtWidgets.QMainWindow, Ui_MainWindow):
     def __init__(self, parent=None):
         super(ViewerModule, self).__init__(parent)
-        # self.app_path=os.path.abspath(os.path.dirname(sys.argv[0]))
+        self.app_path=os.path.abspath(os.path.dirname(sys.argv[0]))
         # print("self.app_path ", self.app_path)
+        self.SplashScreen(2500)
         self.ui=Ui_MainWindow()
         self.setupUi(self)
         self.setWindowTitle("LCPB AMi Image Analysis version %s"%__version__)
@@ -114,6 +114,14 @@ def __init__(self, parent=None):
                 
         self.initUI()
 
+    def SplashScreen(self, ms):
+        '''ms is the time in ms to show splash screen'''
+        _image=Path(self.app_path).joinpath("SplashScreen.png")
+        self.splash=QSplashScreen(QPixmap(str(_image)))
+        self.splash.show()
+        QtCore.QTimer.singleShot(ms, self.splash.close)
+        
+
     def initUI(self):
 
         self.MaxCol=6
@@ -476,9 +484,10 @@ def ShowShortcuts(self):
 
     def ShowAbout(self):
         about=QMessageBox()
-        text='''
+        text=f'''
+AMi Image Analysis version {__version__}
 Program written For Python 3 and PyQt5
-written by:
+by:
 Ludovic Pecqueur
 Chimie des Processus Biologiques
 College de France
diff --git a/README.md b/README.md
index 25bec1b..7762346 100644
--- a/README.md
+++ b/README.md
@@ -78,7 +78,7 @@ Images in Timeline can be clicked to load corresponding image in main viewing fr
 autoMARCO windows can all be displayed at the same time (previously only a single window could be loaded)
 
 2020/03/03
-Merging Z-stacks can be done within AMI_Image_Analysis or command line using the script Merge_Zstack.py. It is done in python and is much faster than using Hugin.
+Merging Z-stacks can be done within AMI_Image_Analysis or command line using the script Merge_Zstack.py. It is done in python using openCV and is much faster than using Hugin.
 
 2020/05/20
 Improved navigation with shortcuts: Now only visible wells through "Filter" option are selected.
diff --git a/SplashScreen.png b/SplashScreen.png
new file mode 100644
index 0000000..426e9e4
Binary files /dev/null and b/SplashScreen.png differ