feat(draw_bbox): update bounding box drawing for tables and images

- Add support for drawing bounding boxes of table and image sub-blocks
- Implement sorting of table blocks based on type order
- Update bounding box drawing for text and title blocks
- Refactor code to handle different block types and their sub-blocks

magic_pdf/dict2md/ocr_mkcontent.py

@@ -71,7 +71,7 @@ def ocr_mk_markdown_with_para_core_v2(paras_of_layout,
                 for block in para_block['blocks']:  # 2nd.拼image_caption
                     if block['type'] == BlockType.ImageCaption:
                         para_text += merge_para_with_text(block) + '  \n'
-                for block in para_block['blocks']:  # 2nd.拼image_caption
+                for block in para_block['blocks']:  # 3rd.拼image_footnote
                     if block['type'] == BlockType.ImageFootnote:
                         para_text += merge_para_with_text(block) + '  \n'
         elif para_type == BlockType.Table:

magic_pdf/libs/draw_bbox.py

@@ -141,11 +141,33 @@ def draw_layout_bbox(pdf_info, pdf_bytes, out_path, filename):
 
     layout_bbox_list = []
 
+    table_type_order = {
+        'table_caption': 1,
+        'table_body': 2,
+        'table_footnote': 3
+    }
     for page in pdf_info:
         page_block_list = []
         for block in page['para_blocks']:
-            bbox = block['bbox']
-            page_block_list.append(bbox)
+            if block['type'] in [
+                BlockType.Text,
+                BlockType.Title,
+                BlockType.InterlineEquation,
+                BlockType.List,
+                BlockType.Index,
+            ]:
+                bbox = block['bbox']
+                page_block_list.append(bbox)
+            elif block['type'] in [BlockType.Image]:
+                for sub_block in block['blocks']:
+                    bbox = sub_block['bbox']
+                    page_block_list.append(bbox)
+            elif block['type'] in [BlockType.Table]:
+                sorted_blocks = sorted(block['blocks'], key=lambda x: table_type_order[x['type']])
+                for sub_block in sorted_blocks:
+                    bbox = sub_block['bbox']
+                    page_block_list.append(bbox)
+
         layout_bbox_list.append(page_block_list)
 
     pdf_docs = fitz.open('pdf', pdf_bytes)
@@ -153,11 +175,11 @@ def draw_layout_bbox(pdf_info, pdf_bytes, out_path, filename):
     for i, page in enumerate(pdf_docs):
 
         draw_bbox_without_number(i, dropped_bbox_list, page, [158, 158, 158], True)
-        draw_bbox_without_number(i, tables_list, page, [153, 153, 0], True)  # color !
+        # draw_bbox_without_number(i, tables_list, page, [153, 153, 0], True)  # color !
         draw_bbox_without_number(i, tables_body_list, page, [204, 204, 0], True)
         draw_bbox_without_number(i, tables_caption_list, page, [255, 255, 102], True)
         draw_bbox_without_number(i, tables_footnote_list, page, [229, 255, 204], True)
-        draw_bbox_without_number(i, imgs_list, page, [51, 102, 0], True)
+        # draw_bbox_without_number(i, imgs_list, page, [51, 102, 0], True)
         draw_bbox_without_number(i, imgs_body_list, page, [153, 255, 51], True)
         draw_bbox_without_number(i, imgs_caption_list, page, [102, 178, 255], True)
         draw_bbox_without_number(i, imgs_footnote_list, page, [255, 178, 102], True),
@@ -338,19 +360,23 @@ def draw_line_sort_bbox(pdf_info, pdf_bytes, out_path, filename):
     for page in pdf_info:
         page_line_list = []
         for block in page['preproc_blocks']:
-            if block['type'] in ['text', 'title', 'interline_equation']:
+            if block['type'] in [BlockType.Text, BlockType.Title, BlockType.InterlineEquation]:
                 for line in block['lines']:
                     bbox = line['bbox']
                     index = line['index']
                     page_line_list.append({'index': index, 'bbox': bbox})
-            if block['type'] in ['table', 'image']:
-                bbox = block['bbox']
-                index = block['index']
-                page_line_list.append({'index': index, 'bbox': bbox})
-            # for line in block['lines']:
-            #     bbox = line['bbox']
-            #     index = line['index']
-            #     page_line_list.append({'index': index, 'bbox': bbox})
+            if block['type'] in [BlockType.Image, BlockType.Table]:
+                for sub_block in block['blocks']:
+                    if sub_block['type'] in [BlockType.ImageBody, BlockType.TableBody]:
+                        for line in sub_block['virtual_lines']:
+                            bbox = line['bbox']
+                            index = line['index']
+                            page_line_list.append({'index': index, 'bbox': bbox})
+                    elif sub_block['type'] in [BlockType.ImageCaption, BlockType.TableCaption, BlockType.ImageFootnote, BlockType.TableFootnote]:
+                        for line in sub_block['lines']:
+                            bbox = line['bbox']
+                            index = line['index']
+                            page_line_list.append({'index': index, 'bbox': bbox})
         sorted_bboxes = sorted(page_line_list, key=lambda x: x['index'])
         layout_bbox_list.append(sorted_bbox['bbox'] for sorted_bbox in sorted_bboxes)
     pdf_docs = fitz.open('pdf', pdf_bytes)