fix line_id bug

kaldi_data_generator.py

@@ -94,10 +94,10 @@ class KaldiDataGenerator:
 
         for i, [x, y, w, h] in enumerate(line_bounding_rects):
             cropped = img[y:y + h, x:x + w].copy()
-            cv2.imwrite(f'{self.out_line_img_dir}_{i}.jpg', cropped)
+            cv2.imwrite(f'{self.out_line_img_dir}/{page_id}_{i}.jpg', cropped)
 
         for i, text in enumerate(line_transcriptions):
-            write_file(f"{self.out_line_text_dir}_{i}.txt", text)
+            write_file(f"{self.out_line_text_dir}/{page_id}_{i}.txt", text)
 
     def run_pages(self, page_ids):
         for page_id in page_ids: