The mainZone can now calibrate itself and create its own 20 windows without any user input

OCR_tester/Form1.cs

@@ -57,7 +57,7 @@ namespace OCR_tester
             //Point coordinates = new Point(Cursor.Location.X - pbxInput.Location.X,Cursor.Location.Y-pbxInput.Location.Y);
             //Point coordinates = new Point(me.X,me.Y);
             Point coordinates = pbxInput.PointToClient(new Point(MousePosition.X, MousePosition.Y)); 
-            MessageBox.Show("Coordinates "+coordinates.X+":"+coordinates.Y);
+            //MessageBox.Show("Coordinates "+coordinates.X+":"+coordinates.Y);
 
             float xOffset = (float)pbxInput.Image.Width / (float)pbxInput.Width;
             float yOffset = (float)pbxInput.Image.Height / (float)pbxInput.Height;

OCR_tester/MainZone.cs

@@ -11,16 +11,20 @@ namespace OCR_tester
 {
     public class MainZone : Zone
     {
-        List<Rectangle> detectedText;
+        //This can be a constant as its unlikely it will change in the next 2 years but if the grid opens up it could be interesting to keep
+        const int NUMBER_OF_DRIVERS = 20;
         public MainZone(Image fullImage, Rectangle bounds) : base(fullImage, bounds)
         {
             AutoCalibrate();
         }
         public void AutoCalibrate()
         {
-            detectedText = new List<Rectangle>();
+            List<Rectangle> detectedText = new List<Rectangle>();
+            Windows = new List<Window>();
+
             TesseractEngine engine = new TesseractEngine(Window.tessDataFolder.FullName, "eng", EngineMode.Default);
-            var tessImage = Pix.LoadFromMemory(Window.ImageToByte(ZoneImage));
+            Image image = ZoneImage;
+            var tessImage = Pix.LoadFromMemory(Window.ImageToByte(image));
 
             Page page = engine.Process(tessImage);
             using (var iter = page.GetIterator())
@@ -31,10 +35,42 @@ namespace OCR_tester
                     Rect boundingBox;
                     if (iter.TryGetBoundingBox(PageIteratorLevel.Word, out boundingBox))
                     {
-                        detectedText.Add(new Rectangle(boundingBox.X1, boundingBox.Y1, boundingBox.Width, boundingBox.Height));
+                        //var text = iter.GetText(PageIteratorLevel.Word).ToUpper();
+                        //We remove all the rectangles that are definitely too big
+                        if (boundingBox.Height < image.Height / NUMBER_OF_DRIVERS) {
+                            //Now we add a filter to only get the boxes in the right because they are much more reliable in size
+                            if (boundingBox.X1 > image.Width / 2)
+                            {
+                                //Now we check if an other square box has been found roughly in the same y axis
+                                bool match = false;
+                                //The tolerance is roughly half the size that a window will be
+                                int tolerance = (image.Height / NUMBER_OF_DRIVERS) / 2; 
+
+                                foreach (Rectangle rect in detectedText)
+                                {
+                                    if (rect.Y > boundingBox.Y1 - tolerance && rect.Y < boundingBox.Y1 + tolerance)
+                                    {
+                                        //There already is a rectangle in this line
+                                        match = true;
+                                    }
+                                }
+                                //if nothing matched we can add it
+                                if(!match)
+                                    detectedText.Add(new Rectangle(boundingBox.X1, boundingBox.Y1, boundingBox.Width, boundingBox.Height));
+                            }
+                        }  
                     }
-                    //var text = iter.GetText(PageIteratorLevel.Word);
                 } while (iter.Next(PageIteratorLevel.Word));
+
+                foreach (Rectangle Rectangle in detectedText)
+                {
+                    Rectangle windowRectangle;
+                    Size windowSize = new Size(image.Width, image.Height / NUMBER_OF_DRIVERS);
+                    Point windowLocation = new Point(0, (Rectangle.Y + Rectangle.Height / 2) - windowSize.Height / 2);
+                    windowRectangle = new Rectangle(windowLocation,windowSize);
+
+                    Windows.Add(new Window(ZoneImage,windowRectangle));
+                }
             }
 
             //Now that we have all the detected text we can try to split the zone
@@ -49,9 +85,9 @@ namespace OCR_tester
             Bitmap image = ZoneImage;
             Graphics g = Graphics.FromImage(image);
 
-            foreach (Rectangle rect in detectedText)
+            foreach (Window w in Windows)
             {
-                g.DrawRectangle(Pens.Red,rect);
+                g.DrawRectangle(Pens.Red,w.Bounds);
             }
             image.Save(@"C:\Users\Moi\Desktop\imgDump\test.png");
             return image;

OCR_tester/Zone.cs

@@ -9,11 +9,11 @@ namespace OCR_tester
 {
     public class Zone
     {
-        private Bitmap FullImage;
-        private List<Zone> Zones;
-        private List<Window> Windows;
+        protected Bitmap FullImage;
+        protected List<Zone> Zones;
+        protected List<Window> Windows;
 
-        private Rectangle _bounds;
+        protected Rectangle _bounds;
         public Rectangle Bounds { get => _bounds; private set => _bounds = value; }
 
         public Bitmap ZoneImage
@@ -43,12 +43,12 @@ namespace OCR_tester
             Zones = new List<Zone>();
             Windows = new List<Window>();
         }
-        public void AddZone(Rectangle bounds)
+        private void AddZone(Rectangle bounds)
         {
             if(Fits(bounds))    
                 Zones.Add(new Zone(ZoneImage,bounds));
         }
-        public void AddWindow(Rectangle bounds)
+        private void AddWindow(Rectangle bounds)
         {
             if (Fits(bounds))
                 Windows.Add(new Window(ZoneImage,bounds));
@@ -58,7 +58,7 @@ namespace OCR_tester
         /// </summary>
         /// <param name="InputRectangle">The Rectangle you want to check the fittment</param>
         /// <returns></returns>
-        private bool Fits(Rectangle inputRectangle)
+        protected bool Fits(Rectangle inputRectangle)
         {
             if (inputRectangle.X + inputRectangle.Width > Bounds.Width || inputRectangle.Y + inputRectangle.Height > Bounds.Height || inputRectangle.X < 0 || inputRectangle.Y < 0)
             {