chore: fix get text with tesseract 4.1

Get text in [email protected] return it without spaces.
Fix:
- add `string.whitespace` to char_whitelist

Author: dtopuzov

core/utils/image_utils.py

@@ -105,7 +105,8 @@ def get_main_color(image_path):
 
     @staticmethod
     def get_text(image_path, use_cv2=True):
-        char_whitelist = string.digits
+        char_whitelist = string.whitespace
+        char_whitelist += string.digits
         char_whitelist += string.ascii_lowercase
         char_whitelist += string.ascii_uppercase
 
@@ -126,7 +127,7 @@ def get_text(image_path, use_cv2=True):
             thresh = cv2.adaptiveThreshold(gray, 255, 1, 1, 11, 2)
 
             # apply some dilation and erosion to join the gaps - change iteration to detect more or less area's
-            thresh = cv2.dilate(thresh, None, iterations=10)
+            thresh = cv2.dilate(thresh, None, iterations=5)
             thresh = cv2.erode(thresh, None, iterations=3)
 
             # Find the contours