make confidence more consistent with score

app.py

@@ -119,7 +119,7 @@ class BZHStableSignatureDemo(object):
         rpv = 10**int(math.log10(pvalue))
         if pvalue < 1e-3:
             result = "Watermark detected with low confidence" # (p-value<%.0e)" % rpv
-        if pvalue < 1e-9:
+        if pvalue < 1e-6:
             result = "Watermark detected with high confidence" # (p-value<%.0e)" % rpv
         score = min(int(-math.log10(pvalue)), 10)
         #print("score = ", score)