Update app.py

app.py

@@ -17,9 +17,9 @@ def decode(im,col):
         newData = []
         h1 = col.strip("#")
         rgb_tup = tuple(int(h1[i:i+2], 16) for i in (0, 2, 4))
-        
+        tol=100
         for item in datas:
-            if item[0] in range(rgb_tup[0]-50,rgb_tup[0]+50) and item[1] in range(rgb_tup[1]-50,rgb_tup[1]+50) and item[2] in range(rgb_tup[2]-50,rgb_tup[2]+50):
+            if item[0] in range(rgb_tup[0]-tol,rgb_tup[0]+tol) and item[1] in range(rgb_tup[1]-tol,rgb_tup[1]+tol) and item[2] in range(rgb_tup[2]-tol,rgb_tup[2]+tol):
                 newData.append((0,0,0))
             else:
                 newData.append((255,255,255))