Update agent.py

agent.py

@@ -6,7 +6,7 @@ import pandas as pd
 from typing import Optional
 from token_bucket import Limiter, MemoryStorage
 import yaml
-from PIL import Image
+from PIL import Image, ImageOps
 import requests
 from io import BytesIO
 from markdownify import markdownify
@@ -265,6 +265,21 @@ def PNG2FENTool(png_file: str) -> str:
 #        If the PNG file cannot be processed or does not contain a valid chess board.
 
     try:
+        # Open and preprocess image
+        img = Image.open(png_file)
+        img = ImageOps.exif_transpose(img)  # Fix orientation
+        img = img.convert("L")  # Grayscale
+        
+        # Resize using LANCZOS instead of ANTIALIAS
+        width, height = img.size
+        new_size = (width*2, height*2)
+        img = img.resize(new_size, Image.LANCZOS)  # Updated here
+        
+        # Save temp file for OCR
+        temp_path = "chess_temp.png"
+        img.save(temp_path)
+        
+        # Perform OCR
         import easyocr
         reader = easyocr.Reader(['en'])
         result = reader.readtext(png_file, detail=0)