Update README.md

README.md

@@ -280,6 +280,37 @@ generate("Multi page parsing.", ["page1.png", "page2.png"], image_mode="base", n
 generate("Multi page parsing.", pdf_to_images("your_doc.pdf", dpi=300), image_mode="base", ngram_window=1024)
 ```
 
+For OmniDocBench evaluation, you need to perform the following post-processing.
+```python
+def remove_det(raw: str) -> str:
+    """
+    Strip <|det|>type [bbox]<|/det|> markers, group lines belonging to the
+    same block with \\n, and separate different blocks with \\n\\n.
+    """
+    blocks = []
+    cur = None
+    for line in raw.splitlines():
+        line = line.rstrip()
+        if not line:
+            continue
+        m = DET_RE.match(line)
+        if m:
+            category, content = m.group(1).strip(), m.group(2).strip()
+            if category == 'image':
+                continue
+            if cur is not None:
+                blocks.append(cur)
+            cur = [content] if content else []
+            continue
+        if cur is None:
+            cur = []
+        cur.append(line)
+    if cur is not None:
+        blocks.append(cur)
+    text = '\n\n'.join('\n'.join(b) for b in blocks).strip()
+    return text
+```
+
 
 ## Visualization