feat(rapidocr): 按照文本行返回单字坐标 (#466)

* 单字左边返回

按照文本行返回单字坐标，保持原先行格式

* Update main.py

get_origin_points 更改为：_get_origin_points

python/rapidocr/cal_rec_boxes/main.py

@@ -47,7 +47,7 @@ class CalRecBoxes:
             word_box_list = self.reverse_rotate_crop_image(
                 copy.deepcopy(box), word_box_list, direction
             )
-            word_results.extend(
+            word_results.append(
                 list(zip(word_box_content_list, conf_list, word_box_list))
             )
 

python/rapidocr/main.py

@@ -123,16 +123,23 @@ class RapidOCR:
                 img, det_res.boxes, rec_res, self.return_single_char_box
             )
             origin_words = []
-            for one_word in rec_res.word_results:
-                one_word_points = one_word[2]
-                if one_word_points is None:
-                    continue
+            for one_word_list in rec_res.word_results:
+                origin_words_item = []
+                for one_word in one_word_list:
+                    one_word_points = one_word[2]
+                    if one_word_points is None:
+                        continue
 
-                origin_words_points = self._get_origin_points(
-                    [one_word_points], op_record, raw_h, raw_w
-                )
-                origin_words_points = origin_words_points.astype(np.int32).tolist()[0]
-                origin_words.append((one_word[0], one_word[1], origin_words_points))
+                    origin_words_points = self._get_origin_points(
+                        [one_word_points], op_record, raw_h, raw_w
+                    )
+                    origin_words_points = origin_words_points.astype(np.int32).tolist()[0]
+                    origin_words_item.append(
+                        (one_word[0], one_word[1], origin_words_points)
+                    )
+                
+                if origin_words_item:
+                    origin_words.append(tuple(origin_words_item))
             rec_res.word_results = tuple(origin_words)
 
         if det_res.boxes is not None: