--- a
+++ b/count_tiles.py
@@ -0,0 +1,35 @@
+import os
+from argparse import ArgumentParser
+import json
+
+script_dir = os.path.dirname(os.path.realpath(__file__))
+
+
+def main(config_path):
+    with open(config_path) as json_file:
+        config = json.load(json_file)
+    tile_path = config["output_path"]
+    
+    total_tumor = 0
+    total_tiles = 0
+    slides = sorted([f for f in os.listdir(tile_path) if os.path.isdir(os.path.join(tile_path, f))])
+    for i in range(len(slides)):
+        slide = slides[i]
+        slide_path = os.path.join(tile_path, slide)
+        n_tumor = len(os.listdir(os.path.join(slide_path, 'tumor')))
+        n_other = len(os.listdir(os.path.join(slide_path, 'non_tumor')))
+        n_total = n_tumor + n_other
+        frac = n_tumor / n_total * 100
+        print("{}: {}/{}, {:.4f}% tumor tiles of total tiles, name: {}".format(i, n_tumor, n_total, frac, slide))
+        total_tumor += n_tumor
+        total_tiles += n_total
+    frac = total_tumor / total_tiles * 100
+    print("Total: {}/{}, {:.4f}% tumor tiles of total tiles".format(total_tumor, total_tiles, frac))
+
+
+if __name__ == "__main__":
+    parser = ArgumentParser()
+    parser.add_argument("--config_path", default=script_dir + "/resources/config.json")
+    args = parser.parse_args()
+
+    main(args.config_path)