Merge features: 1.autoSaving while nexting 2.Add predefined classes 3. avoid using 0-valued coordinates, from https://github.com/tzutalin/labelImg/pull/1

libs/labelDialog.py

@@ -49,3 +49,4 @@ class LabelDialog(QDialog):
     def listItemClick(self, tQListWidgetItem):
         text = tQListWidgetItem.text().trimmed()
         self.edit.setText(text)
+        self.validate()

libs/labelFile.py

@@ -87,8 +87,18 @@ class LabelFile(object):
         for p in points:
             x = p[0]
             y = p[1]
-            xmin = min(x,xmin) 
-            ymin = min(y,ymin) 
-            xmax = max(x,xmax) 
-            ymax = max(y,ymax) 
+            xmin = min(x,xmin)
+            ymin = min(y,ymin)
+            xmax = max(x,xmax)
+            ymax = max(y,ymax)
+
+        # Martin Kersner, 2015/11/12
+        # 0-valued coordinates of BB caused an error while
+        # training faster-rcnn object detector.
+        if (xmin < 1):
+            xmin = 1
+
+        if (ymin < 1):
+            ymin = 1
+
         return (int(xmin), int(ymin), int(xmax), int(ymax))