环境部署
pip install torch transformers docling_core -i https://mirrors.aliyun.com/pypi/simple/下载 hf-mirror镜像(默认例子会自动下载)
pip install transformers numpy huggingface_hub -i https://mirrors.aliyun.com/pypi/simple/
export HF_ENDPOINT=https://hf-mirror.com
huggingface-cli download ds4sd/SmolDocling-256M-preview --local-dir SmolDoclin-256M
官方示例 （会自动从huggingface下载模型）
# Prerequisites:
# pip install torch
# pip install docling_core
# pip install transformers
import torch
from docling_core.types.doc import DoclingDocument
from docling_core.types.doc.document import DocTagsDocument
from transformers import AutoProcessor, AutoModelForVision2Seq
from transformers.image_utils import load_image
from pathlib import Path
DEVICE = "cuda" if torch.cuda.is_available() else "cpu"
# Load images
image = load_image("https://upload.wikimedia.org/wikipedia/commons/7/76/GazettedeFrance.jpg")
# Initialize processor and model
processor = AutoProcessor.from_pretrained("ds4sd/SmolDocling-256M-preview")
model = AutoModelForVision2Seq.from_pretrained(
"ds4sd/SmolDocling-256M-preview",
torch_dtype=torch.bfloat16,
_attn_implementation="flash_attention_2" if DEVICE == "cuda" else "eager",
).to(DEVICE)
# Create input messages
messages = [
{
"role": "user",
"content": [
{"type": "image"},
{"type": "text", "text": "Convert this page to docling."}
]
},
]
# Prepare inputs
prompt = processor.apply_chat_template(messages, add_generation_prompt=True)
inputs = processor(text=prompt, images=[image], return_tensors="pt")
inputs = inputs.to(DEVICE)
# Generate outputs
generated_ids = model.generate(**inputs, max_new_tokens=8192)
prompt_length = inputs.input_ids.shape[1]
trimmed_generated_ids = generated_ids[:, prompt_length:]
doctags = processor.batch_decode(
trimmed_generated_ids,
skip_special_tokens=False,
)[0].lstrip()
# Populate document
doctags_doc = DocTagsDocument.from_doctags_and_image_pairs([doctags], [image])
print(doctags)
# create a docling document
doc = DoclingDocument(name="Document")
doc.load_from_doctags(doctags_doc)
# export as any format
# HTML
# Path("Out/").mkdir(parents=True, exist_ok=True)
# output_path_html = Path("Out/") / "example.html"
# doc.save_as_html(output_path_html)
# MD
print(doc.export_to_markdown())
