Hqwmca

Changed from BATL2 to HQ-WMCA

bob/paper/pad_mccnns_swirdiff/scripts/brsu_scores_distribution.py

@@ -86,11 +86,24 @@ def main(user_input=None):
       else:
         disguise_scores.append(float(split[-1]))
 
+  # normalize score values (for visualization purposes)
+  min_score = min(min(full_scores), min(disguise_scores), min(bf_scores))
+  max_score = max(max(full_scores), max(disguise_scores), max(bf_scores))
+  logger.info("Min score = {}".format(min_score))
+  logger.info("Max score = {}".format(max_score))
+  bf_scores = [((x - min_score) / (max_score - min_score)) for x in bf_scores]
+  disguise_scores = [((x - min_score) / (max_score - min_score)) for x in disguise_scores]
+  full_scores = [((x - min_score) / (max_score - min_score)) for x in full_scores]
+
+  print("BF scores mean = {}".format(numpy.mean(bf_scores)))
+  print("BF scores median = {}".format(numpy.median(bf_scores)))
+
   n_bins = 10 
   pyplot.xlabel("score value", fontsize=16)
+  pyplot.xlim(left=0.0, right=1.0)
   pyplot.ylabel("# of occurences", fontsize=16)
   pyplot.hist(bf_scores, bins=n_bins, facecolor='green', alpha=0.5, label='bonafide')
-  pyplot.hist(disguise_scores, bins=n_bins, facecolor='purple', alpha=0.3, label='obfuscation attacks')
+  pyplot.hist(disguise_scores, bins=n_bins, facecolor='purple', alpha=0.6, label='obfuscation attacks')
   pyplot.hist(full_scores, bins=n_bins, facecolor='red', alpha=0.8, label='impersonation attacks')
   pyplot.legend(loc='upper right')
   pyplot.show()