fix demo hopelijk

zesje/pregrader.py

@@ -6,6 +6,7 @@ from .blanks import get_blank
 from .database import db, Grader, FeedbackOption, GradingPolicy
 from .images import guess_dpi, get_box
 from .pdf_generation import CHECKBOX_FORMAT
+import sys
 
 
 def grade_problem(sub, page, page_img):
@@ -153,11 +154,12 @@ def is_blank(problem, page_img, sub):
 
     while n + 50 < max:
         m = n + 50
-        if np.average(~input_image[n: m]) > (1.03 * np.average(~blank_image[n: m])):
+        print(f"input: {np.average(~input_image[n: m])}, blank: {np.average(~reference[n: m])}", file=sys.stdout)
+        if np.average(~input_image[n: m]) > (1.1 * np.average(~blank_image[n: m])) and np.average(~input_image[n: m]) > 1:
             return False
         n = m
-
-    return not(np.average(~input_image[n: max-1]) > (1.03 * np.average(~blank_image[n: max-1])))
+    print(f"input: {np.average(~input_image[n: max-1])}, blank: {np.average(~blank_image[n: max-1])}", file=sys.stdout)
+    return not(np.average(~input_image[n: max-1]) > (1.1 * np.average(~blank_image[n: max-1])) and np.average(~input_image[n: max-1]) > 1)
 
 
 def box_is_filled(box, page_img, threshold=225, cut_padding=0.05, box_size=9):