Update api.py

api.py

@@ -24,6 +24,8 @@ def get_time():
     try:   # If your backend has any problem and you are not getting any error in logs, then remove this try except to see error.
         file = request.files['file']
         file.save(secure_filename(file.filename))
+        img = cv2.imread(secure_filename(file.filename))
+        img = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
     except:
        return["Sorry something went wrong. Perhaps you did not select your image. Please try again."]   
     rois = request.form['rois'].split(',')
@@ -31,8 +33,7 @@ def get_time():
 
     print(rois, "\n", div)
 
-    img = cv2.imread(secure_filename(file.filename))
-    img = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
+    
     # specify languages and other configs
     reader = easyocr.Reader(['en'], gpu=False)
 
@@ -50,8 +51,11 @@ def get_time():
         for i in range(int(len(rois) / 4)):
             j = i * 4
             global X1, X2, Y1, Y2
-            x1, y1, x2, y2 = int(rois[j]), int(rois[j + 1]), int(rois[j + 2]), int(rois[j + 3])
-            X1, Y1, X2, Y2 = int(Rw * x1), Rh * y1, int(Rw * x2), Rh * y2
+            try:
+                x1, y1, x2, y2 = int(rois[j]), int(rois[j + 1]), int(rois[j + 2]), int(rois[j + 3])
+                X1, Y1, X2, Y2 = int(Rw * x1), Rh * y1, int(Rw * x2), Rh * y2
+            except:
+                return ["Sorry something went wrong. Perhaps you did not select your image. Please try again."]   
             Offset_y1 = ((IacH * y1 / 100) * 0.02) / 100
             Offset_y2 = ((IacH * y2 / 100) * 0.05) / 100
             print(Offset_y1)