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<!--Copyright 2025 The HuggingFace Team. All rights reserved.
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*이 모델은 2025년 2월 20일에 출시되었으며, 동시에 허깅페이스 `Transformer` 라이브러리에 추가되었습니다.*
# 소형 비전 언어 모델(SmolVLM)[[smolvlm]]
<div class="flex flex-wrap space-x-1">
<img alt="PyTorch" src="https://img.shields.io/badge/PyTorch-DE3412?style=flat&logo=pytorch&logoColor=white">
<img alt="FlashAttention" src="https://img.shields.io/badge/%E2%9A%A1%EF%B8%8E%20FlashAttention-eae0c8?style=flat">
<img alt="SDPA" src="https://img.shields.io/badge/SDPA-DE3412?style=flat&logo=pytorch&logoColor=white">
</div>
## 개요[[overview]]
[SmolVLM2](https://huggingface.co/papers/2504.05299) ([블로그 글](https://huggingface.co/blog/smolvlm2)) 은 Idefics3 모델을 개선한 버전으로, 두 가지 주요 차이점이 있습니다:
- 텍스트 모델로 SmolLM2를 사용합니다.
- 한 장의 이미지뿐 아니라 여러 장의 이미지와 비디오 입력도 지원합니다.
## 사용 팁[[usage-tips]]
입력된 이미지는 설정에 따라 원본 해상도를 유지하거나 크기를 조절할 수 있습니다. 이때 이미지 크기 조절 여부와 방식은 `do_resize``size` 파라미터로 결정됩니다.
비디오의 경우에는 업샘플링을 하면 안 됩니다.
만약 `do_resize``True`일 경우, 모델은 기본적으로 이미지의 가장 긴 변을 4*512 픽셀이 되도록 크기를 조절합니다.
이 기본 동작은 `size` 파라미터에 딕셔너리를 전달하여 원하는 값으로 직접 설정할 수 있습니다. 예를 들어, 기본값은 `{"longest_edge": 4 * 512}` 이여도 사용자 필요에 따라 다른 값으로 변경할 수 있습니다.
다음은 리사이징을 제어하고 사용자 정의 크기로 변경하는 방법입니다:
```python
image_processor = SmolVLMImageProcessor(do_resize=True, size={"longest_edge": 2 * 512}, max_image_size=512)
```
또한, `max_image_size` 매개변수는 이미지를 분할하는 정사각형 패치의 크기를 제어합니다. 이 값은 기본적으로 512로 설정되어 있으며 필요에 따라 조정 가능합니다. 이미지 처리기는 리사이징을 마친 후, `max_image_size` 값을 기준으로 이미지를 여러 개의 정사각형 패치로 분할합니다.
이 모델의 기여자는 [orrzohar](https://huggingface.co/orrzohar) 입니다.
## 사용 예시[[usage-example]]
### 단일 미디어 추론[[single-media-inference]]
이 모델은 이미지와 비디오를 모두 입력으로 받을 수 있지만, 한 번에 사용할 수 있는 미디어는 반드시 하나의 종류여야 합니다. 관련 예시 코드는 다음과 같습니다.
```python
import torch
from transformers import AutoProcessor, AutoModelForImageTextToText
processor = AutoProcessor.from_pretrained("HuggingFaceTB/SmolVLM2-256M-Video-Instruct")
model = AutoModelForImageTextToText.from_pretrained(
"HuggingFaceTB/SmolVLM2-256M-Video-Instruct",
dtype=torch.bfloat16,
device_map="auto"
)
conversation = [
{
"role": "user",
"content":[
{"type": "image", "url": "http://images.cocodataset.org/val2017/000000039769.jpg"},
{"type": "text", "text": "이 이미지에 대해 설명해주세요."}
]
}
]
inputs = processor.apply_chat_template(
conversation,
add_generation_prompt=True,
tokenize=True,
return_dict=True,
return_tensors="pt",
).to(model.device, dtype=torch.bfloat16)
output_ids = model.generate(**inputs, max_new_tokens=128)
generated_texts = processor.batch_decode(output_ids, skip_special_tokens=True)
print(generated_texts)
# Video
conversation = [
{
"role": "user",
"content": [
{"type": "video", "path": "/path/to/video.mp4"},
{"type": "text", "text": "이 비디오에 대해 자세히 설명해주세요."}
]
},
]
inputs = processor.apply_chat_template(
conversation,
add_generation_prompt=True,
tokenize=True,
return_dict=True,
return_tensors="pt",
).to(model.device, dtype=torch.bfloat16)
generated_ids = model.generate(**inputs, do_sample=False, max_new_tokens=100)
generated_texts = processor.batch_decode(generated_ids, skip_special_tokens=True)
print(generated_texts[0])
```
### 배치 다중 미디어 추론[[batch-mixed-media-inference]]
이 모델은 여러 이미지, 비디오, 텍스트로 구성된 입력을 한 번에 배치 형태로 처리할 수 있습니다. 관련 예시는 다음과 같습니다.
```python
import torch
from transformers import AutoProcessor, AutoModelForImageTextToText
processor = AutoProcessor.from_pretrained("HuggingFaceTB/SmolVLM2-256M-Video-Instruct")
model = AutoModelForImageTextToText.from_pretrained(
"HuggingFaceTB/SmolVLM2-256M-Video-Instruct",
dtype=torch.bfloat16,
device_map="auto"
)
# 첫 번째 이미지에 대한 구성
conversation1 = [
{
"role": "user",
"content": [
{"type": "image", "path": "/path/to/image.jpg"},
{"type": "text", "text": "이 이미지에 대해 설명해주세요."}
]
}
]
# 두 장의 이미지를 포함한 구성
conversation2 = [
{
"role": "user",
"content": [
{"type": "image", "path": "/path/to/image.jpg"},
{"type": "image", "path": "/path/to/image.jpg"},
{"type": "text", "text": "그림에 무엇이 적혀있나요?"}
]
}
]
# 텍스트만 포함하고 있는 구성
conversation3 = [
{"role": "user","content": "당신은 누구인가요?"}
]
conversations = [conversation1, conversation2, conversation3]
inputs = processor.apply_chat_template(
conversation,
add_generation_prompt=True,
tokenize=True,
return_dict=True,
return_tensors="pt",
).to(model.device, dtype=torch.bfloat16)
generated_ids = model.generate(**inputs, do_sample=False, max_new_tokens=100)
generated_texts = processor.batch_decode(generated_ids, skip_special_tokens=True)
print(generated_texts[0])
```
## SmolVLMConfig[[transformers.SmolVLMConfig]]
[[autodoc]] SmolVLMConfig
## SmolVLMVisionConfig[[transformers.SmolVLMVisionConfig]]
[[autodoc]] SmolVLMVisionConfig
## Idefics3VisionTransformer[[transformers.SmolVLMVisionTransformer]]
[[autodoc]] SmolVLMVisionTransformer
## SmolVLMModel[[transformers.SmolVLMModel]]
[[autodoc]] SmolVLMModel
- forward
## SmolVLMForConditionalGeneration[[transformers.SmolVLMForConditionalGeneration]]
[[autodoc]] SmolVLMForConditionalGeneration
- forward
## SmolVLMImageProcessor[[transformers.SmolVLMImageProcessor]]
[[autodoc]] SmolVLMImageProcessor
- preprocess
## SmolVLMImageProcessorFast[[transformers.SmolVLMImageProcessorFast]]
[[autodoc]] SmolVLMImageProcessorFast
- preprocess
## SmolVLMVideoProcessor[[transformers.SmolVLMVideoProcessor]]
[[autodoc]] SmolVLMVideoProcessor
- preprocess
## SmolVLMProcessor[[transformers.SmolVLMProcessor]]
[[autodoc]] SmolVLMProcessor
- __call__