able to get all student infos

src/preprocessor.py

@@ -143,7 +143,7 @@ class Preprocessor:
                 #cut out first horizontal line if it is white
                 img = 255-img
                 try:
-                    while np.sum(img[0,:]) < 4096:
+                    while np.sum(img[0,:]) < 2048:
                         img = img[1:,:]
                 except:
                     return np.ones((ht, ht))

src/webserver.py

@@ -146,7 +146,7 @@ def split_Student_Names():
     vorname_file = open('../data/Vorname.txt', 'w')
     nachname_file = open('../data/Nachname.txt', 'w')
     matrikelnummer_file = open('../data/Matrikelnummer.txt', 'w')
-    numbers=[]
+    teilnehmer=[]
     with open(csv_path, 'r') as csv_file:
         lines = csv_file.readlines()
         for line in lines[1:]:
@@ -160,8 +160,8 @@ def split_Student_Names():
             vorname_file.write(vorname + " ")
             nachname_file.write(nachname + " ")
             matrikelnummer_file.write(matrikelnummer + " ")
-            numbers.append(matrikelnummer)
-    return numbers
+            teilnehmer.append([vorname,nachname,matrikelnummer])
+    return teilnehmer