Images do not get into the chunks

[iLeonidze]

Bug

Hierachical Chunker does not provide any options to enable images traversal for document iterator

Steps to reproduce

1. Parse the doc with images and OCR enabled
2. Try to make chunks with hybrid chunker

   chunker = HybridChunker(
       merge_peers = True
   )
   chunks = chunker.chunk(doc)

ER: images text presented in chunks
AR: no any image text in chunks provided

Rootcause of this issue is in docling_core.transforms.chunker.hierarchical_chunker.HierarchicalChunker.chunk:

for item, level in dl_doc.iterate_items():

By default iterate_items() do not traverse images and it should be enabled manually, but there is no way to enable images traversal from chunker to be passed to iterate_items() method.
Editing this line the following way:

for item, level in dl_doc.iterate_items(traverse_pictures=True):

solves the issue and images OCR text presented in chunks.

Please provide correct chunk options passed to iterate_items() or make images traversal enabled by default.

Docling version

Docling version: 2.25.0
Docling Core version: 2.21.1
Docling IBM Models version: 3.4.1
Docling Parse version: 3.3.1
Python: cpython-312 (3.12.9)
Platform: Windows-11-10.0.22621-SP0

Python version

Python 3.12.9

[tgillam]

I also would like to see this.