Fix Gradio compatibility: use v4.44.1 with type='pil'

app.py

@@ -85,10 +85,11 @@ def decode_predictions(outputs, itos, blank_idx=0):
 # ============================================================================
 def preprocess_image(image, img_height=32, max_width=200):
     """번호판 이미지 전처리"""
-    # numpy array를 PIL Image로 변환
-    if isinstance(image, np.ndarray):
-        image = Image.fromarray(image.astype('uint8'))
-    
+    # PIL Image로 변환 (Gradio 4.x에서 type="pil"로 이미 PIL Image)
+    if not isinstance(image, Image.Image):
+        if isinstance(image, np.ndarray):
+            image = Image.fromarray(image.astype('uint8'))
+
     image = image.convert('L')
 
     # 리사이즈 (aspect ratio 유지)
@@ -157,7 +158,7 @@ def predict_license_plate(image):
 # ============================================================================
 demo = gr.Interface(
     fn=predict_license_plate,
-    inputs=gr.Image(),
+    inputs=gr.Image(type="pil", label="번호판 이미지"),
     outputs=gr.Textbox(label="인식 결과"),
     title="🚗 한국 번호판 OCR - KLPR v2",
     description="""
@@ -173,6 +174,7 @@ demo = gr.Interface(
     1. 번호판 이미지를 업로드하세요
     2. 자동으로 번호판 번호가 인식됩니다
     """,
+    api_name="predict"
 )
 
 if __name__ == "__main__":

requirements.txt

@@ -1,5 +1,4 @@
-gradio==3.50.2
-gradio-client==0.6.1
+gradio==4.44.1
 torch
 torchvision
 Pillow