diff --git a/src/models/ocr_model/utils/transforms.py b/src/models/ocr_model/utils/transforms.py
index b5b833f..26056f7 100644
--- a/src/models/ocr_model/utils/transforms.py
+++ b/src/models/ocr_model/utils/transforms.py
@@ -5,6 +5,7 @@ import cv2
 
 from torchvision.transforms import v2
 from typing import List, Union
+from PIL import Image
 
 from ....globals import (
     OCR_IMG_CHANNELS,
@@ -37,12 +38,12 @@ general_transform_pipeline = v2.Compose([
 ])
 
 
-def trim_white_border(image: Union[np.ndarray, List[List[List]]]):
+def trim_white_border(image: np.ndarray):
     # image是一个3维的ndarray，RGB格式，维度分布为[H, W, C]（通道维在第三维上）
 
-    # 检查images中的第一个元素是否是嵌套的列表结构
-    if isinstance(image, list):
-        image = np.array(image, dtype=np.uint8)
+    # # 检查images中的第一个元素是否是嵌套的列表结构
+    # if isinstance(image, list):
+    #     image = np.array(image, dtype=np.uint8)
 
     # 检查图像是否为RGB格式，同时检查通道维是不是在第三维上
     if len(image.shape) != 3 or image.shape[2] != 3:
@@ -85,16 +86,16 @@ def padding(images: List[torch.Tensor], required_size: int):
 
 
 def random_resize(
-    images: Union[List[np.ndarray], List[List[List[List]]]], 
+    images: List[np.ndarray], 
     minr: float, 
     maxr: float
 ) -> List[np.ndarray]:
     # np.ndarray的格式：3维，RGB格式，维度分布为[H, W, C]（通道维在第三维上）
 
-    # 检查images中的第一个元素是否是嵌套的列表结构
-    if isinstance(images[0], list):
-        # 将嵌套的列表结构转换为np.ndarray
-        images = [np.array(img, dtype=np.uint8) for img in images]
+    # # 检查images中的第一个元素是否是嵌套的列表结构
+    # if isinstance(images[0], list):
+    #     # 将嵌套的列表结构转换为np.ndarray
+    #     images = [np.array(img, dtype=np.uint8) for img in images]
 
     if len(images[0].shape) != 3 or images[0].shape[2] != 3:
         raise ValueError("Image is not in RGB format or channel is not in third dimension")
@@ -116,11 +117,12 @@ def general_transform(images: List[np.ndarray]) -> List[torch.Tensor]:
     return images
 
 
-def train_transform(images: List[List[List[List]]]) -> List[torch.Tensor]:
+def train_transform(images: List[Image.Image]) -> List[torch.Tensor]:
     assert OCR_IMG_CHANNELS == 1 , "Only support grayscale images for now"
     assert OCR_FIX_SIZE == True, "Only support fixed size images for now"
 
     # random resize first
+    images = [np.array(img.convert('RGB')) for img in images]
     images = random_resize(images, MIN_RESIZE_RATIO, MAX_RESIZE_RATIO)
     return general_transform(images)