cards2coordinates approaches and found some data

Cards2Coordinates/europeTrainStations/stations

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+Subproject commit 807b7ce1d1f028a87274c528c13a3b1c40ae43aa

Cards2Coordinates/openCVGeneralTool/getCoordinates.py

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+# Python code to find the co-ordinates of
+# the contours detected in an image.
+import numpy as np
+import cv2
+  
+# Reading image
+font = cv2.FONT_HERSHEY_COMPLEX
+img2 = cv2.imread('card.jpg', cv2.IMREAD_COLOR)
+  
+# Reading same image in another 
+# variable and converting to gray scale.
+img = cv2.imread('card.jpg', cv2.IMREAD_GRAYSCALE)
+  
+# Converting image to a binary image
+# ( black and white only image).
+_, threshold = cv2.threshold(img, 110, 255, cv2.THRESH_BINARY)
+  
+# Detecting contours in image.
+contours, _= cv2.findContours(threshold, cv2.RETR_TREE,
+                               cv2.CHAIN_APPROX_SIMPLE)
+  
+# Going through every contours found in the image.
+for cnt in contours :
+  
+    approx = cv2.approxPolyDP(cnt, 0.009 * cv2.arcLength(cnt, True), True)
+  
+    # draws boundary of contours.
+    cv2.drawContours(img2, [approx], 0, (0, 0, 255), 5) 
+  
+    # Used to flatted the array containing
+    # the co-ordinates of the vertices.
+    n = approx.ravel() 
+    i = 0
+  
+    for j in n :
+        if(i % 2 == 0):
+            x = n[i]
+            y = n[i + 1]
+  
+            # String containing the co-ordinates.
+            string = str(x) + " " + str(y) 
+  
+            if(i == 0):
+                # text on topmost co-ordinate.
+                cv2.putText(img2, "Arrow tip", (x, y),
+                                font, 0.5, (255, 0, 0)) 
+            else:
+                # text on remaining co-ordinates.
+                cv2.putText(img2, string, (x, y), 
+                          font, 0.5, (0, 255, 0)) 
+        i = i + 1
+  
+# Showing the final image.
+cv2.imshow('image2', img2) 
+  
+# Exiting the window if 'q' is pressed on the keyboard.
+if cv2.waitKey(0) & 0xFF == ord('q'): 
+    cv2.destroyAllWindows()

README.md

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+## die Karte des Rumtreibers