change column name

app.py

@@ -194,8 +194,9 @@ def visualize_cells(image, table_structures, cells):
         draw.text((x1-20, y1), str(row_num)+'-'+str(col_num), (255,0,0), font=fontStyle)
         draw.text((x1, y1), text, (0,0,255), font=fontStyle)
 
-    df = pd.DataFrame(data_rows[1:], columns=data_rows[0])
-    return image, df, df.to_json(orient='records')
+    df = pd.DataFrame(data_rows)
+    df.columns = df.columns.astype(str)
+    return image, df, df.to_json()
 
 
 def ocr(image):