docling/docs/examples/minimal_vlm_pipeline.py
Maksym Lysak e7c29a89d0 Initial implementation to support MLX for VLM pipeline and SmolDocling
Signed-off-by: Maksym Lysak <mly@zurich.ibm.com>
2025-03-19 13:54:41 +01:00

101 lines
3.2 KiB
Python

import json
import time
from pathlib import Path
import yaml
from docling.datamodel.base_models import InputFormat
from docling.datamodel.pipeline_options import (
AcceleratorDevice,
VlmPipelineOptions,
granite_vision_vlm_conversion_options,
smoldocling_vlm_conversion_options,
smoldocling_vlm_mlx_conversion_options,
)
from docling.datamodel.settings import settings
from docling.document_converter import DocumentConverter, PdfFormatOption
from docling.pipeline.vlm_pipeline import VlmPipeline
sources = [
"tests/data/2305.03393v1-pg9-img.png",
]
## Use experimental VlmPipeline
pipeline_options = VlmPipelineOptions()
# If force_backend_text = True, text from backend will be used instead of generated text
pipeline_options.force_backend_text = False
## On GPU systems, enable flash_attention_2 with CUDA:
# pipeline_options.accelerator_options.device = AcceleratorDevice.CUDA
# pipeline_options.accelerator_options.cuda_use_flash_attention2 = True
## Pick a VLM model. We choose SmolDocling-256M by default
# pipeline_options.vlm_options = smoldocling_vlm_conversion_options
## Pick a VLM model. Fast Apple Silicon friendly implementation for SmolDocling-256M via MLX
pipeline_options.vlm_options = smoldocling_vlm_mlx_conversion_options
## Alternative VLM models:
# pipeline_options.vlm_options = granite_vision_vlm_conversion_options
from docling_core.types.doc import DocItemLabel, ImageRefMode
from docling_core.types.doc.document import DEFAULT_EXPORT_LABELS
## Set up pipeline for PDF or image inputs
converter = DocumentConverter(
format_options={
InputFormat.PDF: PdfFormatOption(
pipeline_cls=VlmPipeline,
pipeline_options=pipeline_options,
),
InputFormat.IMAGE: PdfFormatOption(
pipeline_cls=VlmPipeline,
pipeline_options=pipeline_options,
),
}
)
out_path = Path("scratch")
out_path.mkdir(parents=True, exist_ok=True)
for source in sources:
start_time = time.time()
print("================================================")
print("Processing... {}".format(source))
print("================================================")
print("")
res = converter.convert(source)
print("------------------------------------------------")
print("MD:")
print("------------------------------------------------")
print("")
print(res.document.export_to_markdown())
for page in res.pages:
print("")
print("Predicted page in DOCTAGS:")
print(page.predictions.vlm_response.text)
res.document.save_as_html(
filename=Path("{}/{}.html".format(out_path, res.input.file.stem)),
image_mode=ImageRefMode.REFERENCED,
labels=[*DEFAULT_EXPORT_LABELS, DocItemLabel.FOOTNOTE],
)
with (out_path / f"{res.input.file.stem}.json").open("w") as fp:
fp.write(json.dumps(res.document.export_to_dict()))
pg_num = res.document.num_pages()
print("")
inference_time = time.time() - start_time
print(
f"Total document prediction time: {inference_time:.2f} seconds, pages: {pg_num}"
)
print("================================================")
print("done!")
print("================================================")