diff --git a/lib/visualization/generator_eval.py b/lib/visualization/generator_eval.py
new file mode 100644
index 0000000..e370f79
--- /dev/null
+++ b/lib/visualization/generator_eval.py
@@ -0,0 +1,43 @@
+import torch
+
+import matplotlib.pyplot as plt
+from mpl_toolkits.axisartist.axes_grid import ImageGrid
+from tqdm import tqdm
+from typing import List
+
+
+class GeneratorVisualizer(object):
+
+    def __init__(self, maps, trajectories, labels, val_result_dict):
+        # val_results = dict(discriminated_bce_loss, batch_nb, pred_label, label, generated_alternative)
+        self.generated_alternatives = val_result_dict['generated_alternative']
+        self.pred_labels = val_result_dict['pred_label']
+        self.labels = labels
+        self.trajectories = trajectories
+        self.maps = maps
+        self.column_dict_list = self._build_column_dict_list()
+
+    def _build_column_dict_list(self):
+        dict_list = []
+        for idx in range(self.maps):
+            image = self.maps[idx] + self.trajectories[idx] + self.generated_alternatives
+            label = self.labels[idx]
+            dict_list.append(dict(image=image, label=label))
+        half_size = int(len(dict_list) // 2)
+        return dict_list[:half_size], dict_list[half_size:]
+
+    def draw(self):
+        fig = plt.figure()
+        grid = ImageGrid(fig, 111,  # similar to subplot(111)
+                         nrows_ncols=(len(self.column_dict_list[0]), len(self.column_dict_list)),
+                         axes_pad=0.2,  # pad between axes in inch.
+                         )
+
+        for idx in grid.axes_all:
+            row, col = divmod(idx, len(self.column_dict_list))
+            current_image = self.column_dict_list[col]['image'][row]
+            current_label = self.column_dict_list[col]['label'][row]
+            grid[idx].imshow(current_image)
+            grid[idx].title.set_text(current_label)
+        fig.cbar_mode = 'single'
+        return fig