diff --git a/finetune/make_captions.py b/finetune/make_captions.py
index e690349a..1c8df2f4 100644
--- a/finetune/make_captions.py
+++ b/finetune/make_captions.py
@@ -4,6 +4,7 @@ import os
 import json
 import random
 
+from pathlib import Path
 from PIL import Image
 from tqdm import tqdm
 import numpy as np
@@ -72,7 +73,8 @@ def main(args):
     os.chdir('finetune')
 
   print(f"load images from {args.train_data_dir}")
-  image_paths = train_util.glob_images(args.train_data_dir)
+  train_data_dir_path = Path(args.train_data_dir)
+  image_paths = train_util.glob_images_pathlib(train_data_dir_path, args.recursive)
   print(f"found {len(image_paths)} images.")
 
   print(f"loading BLIP caption: {args.caption_weights}")
@@ -152,7 +154,8 @@ def setup_parser() -> argparse.ArgumentParser:
   parser.add_argument("--min_length", type=int, default=5, help="min length of caption / captionの最小長")
   parser.add_argument('--seed', default=42, type=int, help='seed for reproducibility / 再現性を確保するための乱数seed')
   parser.add_argument("--debug", action="store_true", help="debug mode")
-
+  parser.add_argument("--recursive", action="store_true", help="search for images in subfolders recursively")  
+  
   return parser
 
 
diff --git a/finetune/make_captions_by_git.py b/finetune/make_captions_by_git.py
index 06af5598..58fa4ccb 100644
--- a/finetune/make_captions_by_git.py
+++ b/finetune/make_captions_by_git.py
@@ -2,6 +2,7 @@ import argparse
 import os
 import re
 
+from pathlib import Path
 from PIL import Image
 from tqdm import tqdm
 import torch
@@ -65,7 +66,8 @@ def main(args):
   GenerationMixin._prepare_input_ids_for_generation = _prepare_input_ids_for_generation_patch
 
   print(f"load images from {args.train_data_dir}")
-  image_paths = train_util.glob_images(args.train_data_dir)
+  train_data_dir_path = Path(args.train_data_dir)
+  image_paths = train_util.glob_images_pathlib(train_data_dir_path, args.recursive)
   print(f"found {len(image_paths)} images.")
 
   # できればcacheに依存せず明示的にダウンロードしたい
@@ -140,7 +142,8 @@ def setup_parser() -> argparse.ArgumentParser:
   parser.add_argument("--remove_words", action="store_true",
                       help="remove like `with the words xxx` from caption / `with the words xxx`のような部分をキャプションから削除する")
   parser.add_argument("--debug", action="store_true", help="debug mode")
-
+  parser.add_argument("--recursive", action="store_true", help="search for images in subfolders recursively")  
+  
   return parser
 
 
diff --git a/finetune/prepare_buckets_latents.py b/finetune/prepare_buckets_latents.py
index 8d9a38ab..b9c0fa50 100644
--- a/finetune/prepare_buckets_latents.py
+++ b/finetune/prepare_buckets_latents.py
@@ -2,6 +2,8 @@ import argparse
 import os
 import json
 
+from pathlib import Path
+from typing import List
 from tqdm import tqdm
 import numpy as np
 from PIL import Image
@@ -41,14 +43,22 @@ def get_latents(vae, images, weight_dtype):
   return latents
 
 
-def get_npz_filename_wo_ext(data_dir, image_key, is_full_path, flip):
+def get_npz_filename_wo_ext(data_dir, image_key, is_full_path, flip, recursive):
   if is_full_path:
     base_name = os.path.splitext(os.path.basename(image_key))[0]
+    relative_path = os.path.relpath(os.path.dirname(image_key), data_dir)
   else:
     base_name = image_key
+    relative_path = ""
+
   if flip:
     base_name += '_flip'
-  return os.path.join(data_dir, base_name)
+
+  if recursive and relative_path:
+    return os.path.join(data_dir, relative_path, base_name)
+  else:
+    return os.path.join(data_dir, base_name)
+
 
 
 def main(args):
@@ -56,7 +66,8 @@ def main(args):
   if args.bucket_reso_steps % 8 > 0:
     print(f"resolution of buckets in training time is a multiple of 8 / 学習時の各bucketの解像度は8単位になります")
 
-  image_paths = train_util.glob_images(args.train_data_dir)
+  train_data_dir_path = Path(args.train_data_dir)
+  image_paths: List[str] = [str(p) for p in train_util.glob_images_pathlib(train_data_dir_path, args.recursive)]
   print(f"found {len(image_paths)} images.")
 
   if os.path.exists(args.in_json):
@@ -99,7 +110,7 @@ def main(args):
             f"latent shape {latents.shape}, {bucket[0][1].shape}"
 
         for (image_key, _), latent in zip(bucket, latents):
-          npz_file_name = get_npz_filename_wo_ext(args.train_data_dir, image_key, args.full_path, False)
+          npz_file_name = get_npz_filename_wo_ext(args.train_data_dir, image_key, args.full_path, False, args.recursive)
           np.savez(npz_file_name, latent)
 
         # flip
@@ -107,12 +118,12 @@ def main(args):
           latents = get_latents(vae, [img[:, ::-1].copy() for _, img in bucket], weight_dtype)   # copyがないとTensor変換できない
 
           for (image_key, _), latent in zip(bucket, latents):
-            npz_file_name = get_npz_filename_wo_ext(args.train_data_dir, image_key, args.full_path, True)
+            npz_file_name = get_npz_filename_wo_ext(args.train_data_dir, image_key, args.full_path, True, args.recursive)
             np.savez(npz_file_name, latent)
         else:
           # remove existing flipped npz
           for image_key, _ in bucket:
-            npz_file_name = get_npz_filename_wo_ext(args.train_data_dir, image_key, args.full_path, True) + ".npz"
+            npz_file_name = get_npz_filename_wo_ext(args.train_data_dir, image_key, args.full_path, True, args.recursive) + ".npz"
             if os.path.isfile(npz_file_name):
               print(f"remove existing flipped npz / 既存のflipされたnpzファイルを削除します: {npz_file_name}")
               os.remove(npz_file_name)
@@ -169,9 +180,9 @@ def main(args):
 
     # 既に存在するファイルがあればshapeを確認して同じならskipする
     if args.skip_existing:
-      npz_files = [get_npz_filename_wo_ext(args.train_data_dir, image_key, args.full_path, False) + ".npz"]
+      npz_files = [get_npz_filename_wo_ext(args.train_data_dir, image_key, args.full_path, False, args.recursive) + ".npz"]
       if args.flip_aug:
-        npz_files.append(get_npz_filename_wo_ext(args.train_data_dir, image_key, args.full_path, True) + ".npz")
+        npz_files.append(get_npz_filename_wo_ext(args.train_data_dir, image_key, args.full_path, True, args.recursive) + ".npz")
 
       found = True
       for npz_file in npz_files:
@@ -256,6 +267,8 @@ def setup_parser() -> argparse.ArgumentParser:
                       help="flip augmentation, save latents for flipped images / 左右反転した画像もlatentを取得、保存する")
   parser.add_argument("--skip_existing", action="store_true",
                       help="skip images if npz already exists (both normal and flipped exists if flip_aug is enabled) / npzが既に存在する画像をスキップする（flip_aug有効時は通常、反転の両方が存在する画像をスキップ）")
+  parser.add_argument("--recursive", action="store_true",
+                      help="recursively look for training tags in all child folders of train_data_dir / train_data_dirのすべての子フォルダにある学習タグを再帰的に探す")
 
   return parser
 
diff --git a/finetune/tag_images_by_wd14_tagger.py b/finetune/tag_images_by_wd14_tagger.py
index 2286115e..efcf3fc1 100644
--- a/finetune/tag_images_by_wd14_tagger.py
+++ b/finetune/tag_images_by_wd14_tagger.py
@@ -10,6 +10,7 @@ import numpy as np
 from tensorflow.keras.models import load_model
 from huggingface_hub import hf_hub_download
 import torch
+from pathlib import Path
 
 import library.train_util as train_util
 
@@ -23,184 +24,212 @@ SUB_DIR = "variables"
 SUB_DIR_FILES = ["variables.data-00000-of-00001", "variables.index"]
 CSV_FILE = FILES[-1]
 
-
 def preprocess_image(image):
-  image = np.array(image)
-  image = image[:, :, ::-1]                         # RGB->BGR
+    image = np.array(image)
+    image = image[:, :, ::-1]                         # RGB->BGR
 
-  # pad to square
-  size = max(image.shape[0:2])
-  pad_x = size - image.shape[1]
-  pad_y = size - image.shape[0]
-  pad_l = pad_x // 2
-  pad_t = pad_y // 2
-  image = np.pad(image, ((pad_t, pad_y - pad_t), (pad_l, pad_x - pad_l), (0, 0)), mode='constant', constant_values=255)
+    # pad to square
+    size = max(image.shape[0:2])
+    pad_x = size - image.shape[1]
+    pad_y = size - image.shape[0]
+    pad_l = pad_x // 2
+    pad_t = pad_y // 2
+    image = np.pad(image, ((pad_t, pad_y - pad_t), (pad_l, pad_x - pad_l), (0, 0)), mode='constant', constant_values=255)
 
-  interp = cv2.INTER_AREA if size > IMAGE_SIZE else cv2.INTER_LANCZOS4
-  image = cv2.resize(image, (IMAGE_SIZE, IMAGE_SIZE), interpolation=interp)
-
-  image = image.astype(np.float32)
-  return image
+    interp = cv2.INTER_AREA if size > IMAGE_SIZE else cv2.INTER_LANCZOS4
+    image = cv2.resize(image, (IMAGE_SIZE, IMAGE_SIZE), interpolation=interp)
 
+    image = image.astype(np.float32)
+    return image
 
 class ImageLoadingPrepDataset(torch.utils.data.Dataset):
-  def __init__(self, image_paths):
-    self.images = image_paths
+    def __init__(self, image_paths):
+        self.images = image_paths
 
-  def __len__(self):
-    return len(self.images)
+    def __len__(self):
+        return len(self.images)
 
-  def __getitem__(self, idx):
-    img_path = self.images[idx]
-
-    try:
-      image = Image.open(img_path).convert("RGB")
-      image = preprocess_image(image)
-      tensor = torch.tensor(image)
-    except Exception as e:
-      print(f"Could not load image path / 画像を読み込めません: {img_path}, error: {e}")
-      return None
-
-    return (tensor, img_path)
+    def __getitem__(self, idx):
+        img_path = str(self.images[idx])
 
+        try:
+            image = Image.open(img_path).convert("RGB")
+            image = preprocess_image(image)
+            tensor = torch.tensor(image)
+        except Exception as e:
+            print(f"Could not load image path / 画像を読み込めません: {img_path}, error: {e}")
+            return None
 
+        return (tensor, img_path)
+  
 def collate_fn_remove_corrupted(batch):
-  """Collate function that allows to remove corrupted examples in the
-  dataloader. It expects that the dataloader returns 'None' when that occurs.
-  The 'None's in the batch are removed.
-  """
-  # Filter out all the Nones (corrupted examples)
-  batch = list(filter(lambda x: x is not None, batch))
-  return batch
-
+    """Collate function that allows to remove corrupted examples in the
+    dataloader. It expects that the dataloader returns 'None' when that occurs.
+    The 'None's in the batch are removed.
+    """
+    # Filter out all the Nones (corrupted examples)
+    batch = list(filter(lambda x: x is not None, batch))
+    return batch
 
 def main(args):
-  # hf_hub_downloadをそのまま使うとsymlink関係で問題があるらしいので、キャッシュディレクトリとforce_filenameを指定してなんとかする
-  # depreacatedの警告が出るけどなくなったらその時
-  # https://github.com/toriato/stable-diffusion-webui-wd14-tagger/issues/22
-  if not os.path.exists(args.model_dir) or args.force_download:
-    print(f"downloading wd14 tagger model from hf_hub. id: {args.repo_id}")
-    for file in FILES:
-      hf_hub_download(args.repo_id, file, cache_dir=args.model_dir, force_download=True, force_filename=file)
-    for file in SUB_DIR_FILES:
-      hf_hub_download(args.repo_id, file, subfolder=SUB_DIR, cache_dir=os.path.join(
-          args.model_dir, SUB_DIR), force_download=True, force_filename=file)
-  else:
-    print("using existing wd14 tagger model")
+    # hf_hub_downloadをそのまま使うとsymlink関係で問題があるらしいので、キャッシュディレクトリとforce_filenameを指定してなんとかする
+    # depreacatedの警告が出るけどなくなったらその時
+    # https://github.com/toriato/stable-diffusion-webui-wd14-tagger/issues/22
+    if not os.path.exists(args.model_dir) or args.force_download:
+        print(f"downloading wd14 tagger model from hf_hub. id: {args.repo_id}")
+        for file in FILES:
+            hf_hub_download(args.repo_id, file, cache_dir=args.model_dir, force_download=True, force_filename=file)
+        for file in SUB_DIR_FILES:
+            hf_hub_download(args.repo_id, file, subfolder=SUB_DIR, cache_dir=os.path.join(
+                args.model_dir, SUB_DIR), force_download=True, force_filename=file)
+    else:
+        print("using existing wd14 tagger model")
 
-  # 画像を読み込む
-  image_paths = train_util.glob_images(args.train_data_dir)
-  print(f"found {len(image_paths)} images.")
+    # 画像を読み込む
+    model = load_model(args.model_dir)
 
-  print("loading model and labels")
-  model = load_model(args.model_dir)
+    # label_names = pd.read_csv("2022_0000_0899_6549/selected_tags.csv")
+    # 依存ライブラリを増やしたくないので自力で読むよ
 
-  # label_names = pd.read_csv("2022_0000_0899_6549/selected_tags.csv")
-  # 依存ライブラリを増やしたくないので自力で読むよ
-  with open(os.path.join(args.model_dir, CSV_FILE), "r", encoding="utf-8") as f:
-    reader = csv.reader(f)
-    l = [row for row in reader]
-    header = l[0]             # tag_id,name,category,count
-    rows = l[1:]
-  assert header[0] == 'tag_id' and header[1] == 'name' and header[2] == 'category', f"unexpected csv format: {header}"
+    with open(os.path.join(args.model_dir, CSV_FILE), "r", encoding="utf-8") as f:
+        reader = csv.reader(f)
+        l = [row for row in reader]
+        header = l[0]             # tag_id,name,category,count
+        rows = l[1:]
+    assert header[0] == 'tag_id' and header[1] == 'name' and header[2] == 'category', f"unexpected csv format: {header}"
 
-  tags = [row[1] for row in rows[1:] if row[2] == '0']      # categoryが0、つまり通常のタグのみ
+    general_tags = [row[1] for row in rows[1:] if row[2] == '0']
+    character_tags = [row[1] for row in rows[1:] if row[2] == '4']
 
-  # 推論する
-  def run_batch(path_imgs):
-    imgs = np.array([im for _, im in path_imgs])
+    # 画像を読み込む
+    
+    train_data_dir_path = Path(args.train_data_dir)
+    image_paths = train_util.glob_images_pathlib(train_data_dir_path, args.recursive)
+    print(f"found {len(image_paths)} images.")
 
-    probs = model(imgs, training=False)
-    probs = probs.numpy()
+    tag_freq = {}
 
-    for (image_path, _), prob in zip(path_imgs, probs):
-      # 最初の4つはratingなので無視する
-      # # First 4 labels are actually ratings: pick one with argmax
-      # ratings_names = label_names[:4]
-      # rating_index = ratings_names["probs"].argmax()
-      # found_rating = ratings_names[rating_index: rating_index + 1][["name", "probs"]]
+    undesired_tags = set(args.undesired_tags.split(','))
 
-      # それ以降はタグなのでconfidenceがthresholdより高いものを追加する
-      # Everything else is tags: pick any where prediction confidence > threshold
-      tag_text = ""
-      for i, p in enumerate(prob[4:]):                # numpyとか使うのが良いけど、まあそれほど数も多くないのでループで
-        if p >= args.thresh and i < len(tags):
-          tag_text += ", " + tags[i]
+    def run_batch(path_imgs):
+        imgs = np.array([im for _, im in path_imgs])
 
-      if len(tag_text) > 0:
-        tag_text = tag_text[2:]                   # 最初の ", " を消す
+        probs = model(imgs, training=False)
+        probs = probs.numpy()
 
-      with open(os.path.splitext(image_path)[0] + args.caption_extension, "wt", encoding='utf-8') as f:
-        f.write(tag_text + '\n')
-        if args.debug:
-          print(image_path, tag_text)
+        for (image_path, _), prob in zip(path_imgs, probs):
+            # 最初の4つはratingなので無視する
+            # # First 4 labels are actually ratings: pick one with argmax
+            # ratings_names = label_names[:4]
+            # rating_index = ratings_names["probs"].argmax()
+            # found_rating = ratings_names[rating_index: rating_index + 1][["name", "probs"]]
 
-  # 読み込みの高速化のためにDataLoaderを使うオプション
-  if args.max_data_loader_n_workers is not None:
-    dataset = ImageLoadingPrepDataset(image_paths)
-    data = torch.utils.data.DataLoader(dataset, batch_size=args.batch_size, shuffle=False,
-                                       num_workers=args.max_data_loader_n_workers, collate_fn=collate_fn_remove_corrupted, drop_last=False)
-  else:
-    data = [[(None, ip)] for ip in image_paths]
+            # それ以降はタグなのでconfidenceがthresholdより高いものを追加する
+            # Everything else is tags: pick any where prediction confidence > threshold
+            combined_tags = []
+            general_tag_text = ""
+            character_tag_text = ""
+            for i, p in enumerate(prob[4:]):
+                if i < len(general_tags) and p >= args.general_threshold:
+                    tag_name = general_tags[i].replace('_', ' ') if args.remove_underscore else general_tags[i]
+                    if tag_name not in undesired_tags:
+                        tag_freq[tag_name] = tag_freq.get(tag_name, 0) + 1
+                        general_tag_text += ", " + tag_name
+                        combined_tags.append(tag_name)
+                elif i >= len(general_tags) and p >= args.character_threshold:
+                    tag_name = character_tags[i - len(general_tags)].replace('_', ' ') if args.remove_underscore else character_tags[i - len(general_tags)]
+                    if tag_name not in undesired_tags:
+                        tag_freq[tag_name] = tag_freq.get(tag_name, 0) + 1
+                        character_tag_text += ", " + tag_name
+                        combined_tags.append(tag_name)
 
-  b_imgs = []
-  for data_entry in tqdm(data, smoothing=0.0):
-    for data in data_entry:
-      if data is None:
-        continue
+            if len(general_tag_text) > 0:
+                general_tag_text = general_tag_text[2:]
 
-      image, image_path = data
-      if image is not None:
-        image = image.detach().numpy()
-      else:
-        try:
-          image = Image.open(image_path)
-          if image.mode != 'RGB':
-            image = image.convert("RGB")
-          image = preprocess_image(image)
-        except Exception as e:
-          print(f"Could not load image path / 画像を読み込めません: {image_path}, error: {e}")
-          continue
-      b_imgs.append((image_path, image))
+            if len(character_tag_text) > 0:
+                character_tag_text = character_tag_text[2:]
 
-      if len(b_imgs) >= args.batch_size:
+            tag_text = ', '.join(combined_tags)
+            
+            with open(os.path.splitext(image_path)[0] + args.caption_extension, "wt", encoding='utf-8') as f:
+                f.write(tag_text + '\n')
+                if args.debug:
+                    print(f"\n{image_path}:\n  Character tags: {character_tag_text}\n  General tags: {general_tag_text}")
+
+
+    # 読み込みの高速化のためにDataLoaderを使うオプション
+    if args.max_data_loader_n_workers is not None:
+        dataset = ImageLoadingPrepDataset(image_paths)
+        data = torch.utils.data.DataLoader(dataset, batch_size=args.batch_size, shuffle=False,
+                                        num_workers=args.max_data_loader_n_workers, collate_fn=collate_fn_remove_corrupted, drop_last=False)
+    else:
+        data = [[(None, ip)] for ip in image_paths]
+
+    b_imgs = []
+    for data_entry in tqdm(data, smoothing=0.0):
+        for data in data_entry:
+            if data is None:
+                continue
+
+            image, image_path = data
+            if image is not None:
+                image = image.detach().numpy()
+            else:
+                try:
+                    image = Image.open(image_path)
+                    if image.mode != 'RGB':
+                        image = image.convert("RGB")
+                    image = preprocess_image(image)
+                except Exception as e:
+                    print(f"Could not load image path / 画像を読み込めません: {image_path}, error: {e}")
+                    continue
+            b_imgs.append((image_path, image))
+
+            if len(b_imgs) >= args.batch_size:
+                b_imgs = [(str(image_path), image) for image_path, image in b_imgs]  # Convert image_path to string
+                run_batch(b_imgs)
+                b_imgs.clear()
+
+    if len(b_imgs) > 0:
+        b_imgs = [(str(image_path), image) for image_path, image in b_imgs]  # Convert image_path to string
         run_batch(b_imgs)
-        b_imgs.clear()
 
-  if len(b_imgs) > 0:
-    run_batch(b_imgs)
+    if args.frequency_tags:
+        sorted_tags = sorted(tag_freq.items(), key=lambda x: x[1], reverse=True)
+        print("\nTag frequencies:")
+        for tag, freq in sorted_tags:
+            print(f"{tag}: {freq}")
 
-  print("done!")
-
-
-def setup_parser() -> argparse.ArgumentParser:
-  parser = argparse.ArgumentParser()
-  parser.add_argument("train_data_dir", type=str, help="directory for train images / 学習画像データのディレクトリ")
-  parser.add_argument("--repo_id", type=str, default=DEFAULT_WD14_TAGGER_REPO,
-                      help="repo id for wd14 tagger on Hugging Face / Hugging Faceのwd14 taggerのリポジトリID")
-  parser.add_argument("--model_dir", type=str, default="wd14_tagger_model",
-                      help="directory to store wd14 tagger model / wd14 taggerのモデルを格納するディレクトリ")
-  parser.add_argument("--force_download", action='store_true',
-                      help="force downloading wd14 tagger models / wd14 taggerのモデルを再ダウンロードします")
-  parser.add_argument("--thresh", type=float, default=0.35, help="threshold of confidence to add a tag / タグを追加するか判定する閾値")
-  parser.add_argument("--batch_size", type=int, default=1, help="batch size in inference / 推論時のバッチサイズ")
-  parser.add_argument("--max_data_loader_n_workers", type=int, default=None,
-                      help="enable image reading by DataLoader with this number of workers (faster) / DataLoaderによる画像読み込みを有効にしてこのワーカー数を適用する（読み込みを高速化）")
-  parser.add_argument("--caption_extention", type=str, default=None,
-                      help="extension of caption file (for backward compatibility) / 出力されるキャプションファイルの拡張子（スペルミスしていたのを残してあります）")
-  parser.add_argument("--caption_extension", type=str, default=".txt", help="extension of caption file / 出力されるキャプションファイルの拡張子")
-  parser.add_argument("--debug", action="store_true", help="debug mode")
-
-  return parser
+    print("done!")
 
 
 if __name__ == '__main__':
-  parser = setup_parser()
+    parser = argparse.ArgumentParser()
+    parser.add_argument("train_data_dir", type=str, help="directory for train images / 学習画像データのディレクトリ")
+    parser.add_argument("--repo_id", type=str, default=DEFAULT_WD14_TAGGER_REPO,
+    help="repo id for wd14 tagger on Hugging Face / Hugging Faceのwd14 taggerのリポジトリID")
+    parser.add_argument("--model_dir", type=str, default="wd14_tagger_model",
+    help="directory to store wd14 tagger model / wd14 taggerのモデルを格納するディレクトリ")
+    parser.add_argument("--force_download", action='store_true',
+    help="force downloading wd14 tagger models / wd14 taggerのモデルを再ダウンロードします")
+    parser.add_argument("--batch_size", type=int, default=1, help="batch size in inference / 推論時のバッチサイズ")
+    parser.add_argument("--max_data_loader_n_workers", type=int, default=None,
+    help="enable image reading by DataLoader with this number of workers (faster) / DataLoaderによる画像読み込みを有効にしてこのワーカー数を適用する（読み込みを高速化）")
+    parser.add_argument("--caption_extention", type=str, default=None,
+    help="extension of caption file (for backward compatibility) / 出力されるキャプションファイルの拡張子（スペルミスしていたのを残してあります）")
+    parser.add_argument("--caption_extension", type=str, default=".txt", help="extension of caption file / 出力されるキャプションファイルの拡張子")
+    parser.add_argument("--general_threshold", type=float, default=0.35, help="threshold of confidence to add a tag for general category")
+    parser.add_argument("--character_threshold", type=float, default=0.35, help="threshold of confidence to add a tag for character category")
+    parser.add_argument("--recursive", action="store_true", help="search for images in subfolders recursively")
+    parser.add_argument("--remove_underscore", action="store_true", help="replace underscores with spaces in the output tags")
+    parser.add_argument("--debug", action="store_true", help="debug mode")
+    parser.add_argument("--undesired_tags", type=str, default="", help="comma-separated list of undesired tags to remove from the output")
+    parser.add_argument('--frequency_tags', action='store_true', help='Show frequency of tags for images')
 
-  args = parser.parse_args()
+    args = parser.parse_args()
 
-  # スペルミスしていたオプションを復元する
-  if args.caption_extention is not None:
-    args.caption_extension = args.caption_extention
+    # スペルミスしていたオプションを復元する
+    if args.caption_extention is not None:
+        args.caption_extension = args.caption_extention
 
-  main(args)
+    main(args)
diff --git a/tools/convert_diffusers20_original_sd.py b/tools/convert_diffusers20_original_sd.py
index 7c7cc1c5..c33ca202 100644
--- a/tools/convert_diffusers20_original_sd.py
+++ b/tools/convert_diffusers20_original_sd.py
@@ -12,12 +12,12 @@ def convert(args):
   # 引数を確認する
   load_dtype = torch.float16 if args.fp16 else None
 
-  save_dtype = None
-  if args.fp16:
+  save_dtype = None 
+  if args.fp16 or args.save_precision_as == "fp16":
     save_dtype = torch.float16
-  elif args.bf16:
+  elif args.bf16 or args.save_precision_as == "bf16":
     save_dtype = torch.bfloat16
-  elif args.float:
+  elif args.float or args.save_precision_as == "float":
     save_dtype = torch.float
 
   is_load_ckpt = os.path.isfile(args.model_to_load)
@@ -72,6 +72,8 @@ def setup_parser() -> argparse.ArgumentParser:
   parser.add_argument("--bf16", action='store_true', help='save as bf16 (checkpoint only) / bf16形式で保存する（checkpointのみ対応）')
   parser.add_argument("--float", action='store_true',
                       help='save as float (checkpoint only) / float(float32)形式で保存する（checkpointのみ対応）')
+  parser.add_argument("--save_precision_as", type=str, default="no", choices=["fp16", "bf16", "float"], 
+                      help="save precision")
   parser.add_argument("--epoch", type=int, default=0, help='epoch to write to checkpoint / checkpointに記録するepoch数の値')
   parser.add_argument("--global_step", type=int, default=0,
                       help='global_step to write to checkpoint / checkpointに記録するglobal_stepの値')