LLaVA-JP Model Card
Model detail
Model type:
LLaVA-JP is a vision-language model that can converse about input images.
This model is an LVLM model trained using google/siglip-so400m-patch14-384 as the image encoder and llm-jp/llm-jp-1.3b-v1.0 as the text decoder. supports the input of 768 x 768 high resolution images by scaling_on_scales method.
Training:
This model was initially trained with the Vision Projector using LLaVA-Pretrain-JA.
In the second phase, it was fine-tuned with 10.5k of commoncatalog-cc-by-ext.
resources for more information: https://github.com/tosiyuki/LLaVA-JP/tree/main
How to use the model
1. Download dependencies
git clone https://github.com/tosiyuki/LLaVA-JP.git
2. Inference
import torch
import transformers
from PIL import Image
from transformers.generation.streamers import TextStreamer
from llava.constants import DEFAULT_IMAGE_TOKEN, IMAGE_TOKEN_INDEX
from llava.conversation import conv_templates, SeparatorStyle
from llava.model.llava_gpt2 import LlavaGpt2ForCausalLM
from llava.train.dataset import tokenizer_image_token
if __name__ == "__main__":
model_path = 'toshi456/llava-jp-1.3b-v1.1-commoncatalog-cc-by-ext-10k'
device = "cuda" if torch.cuda.is_available() else "cpu"
torch_dtype = torch.bfloat16 if device=="cuda" else torch.float32
model = LlavaGpt2ForCausalLM.from_pretrained(
model_path,
low_cpu_mem_usage=True,
use_safetensors=True,
torch_dtype=torch_dtype,
device_map=device,
)
tokenizer = transformers.AutoTokenizer.from_pretrained(
model_path,
model_max_length=1532,
padding_side="right",
use_fast=False,
)
model.eval()
conv_mode = "v1"
conv = conv_templates[conv_mode].copy()
# image pre-process
image_url = "https://huggingface.co/rinna/bilingual-gpt-neox-4b-minigpt4/resolve/main/sample.jpg"
image = Image.open(requests.get(image_url, stream=True).raw).convert('RGB')
image_size = model.get_model().vision_tower.image_processor.size["height"]
if model.get_model().vision_tower.scales is not None:
image_size = model.get_model().vision_tower.image_processor.size["height"] * len(model.get_model().vision_tower.scales)
if device == "cuda":
image_tensor = model.get_model().vision_tower.image_processor(
image,
return_tensors='pt',
size={"height": image_size, "width": image_size}
)['pixel_values'].half().cuda().to(torch_dtype)
else:
image_tensor = model.get_model().vision_tower.image_processor(
image,
return_tensors='pt',
size={"height": image_size, "width": image_size}
)['pixel_values'].to(torch_dtype)
# create prompt
# ユーザー: <image>\n{prompt}
prompt = "画像について説明してください。"
inp = DEFAULT_IMAGE_TOKEN + '\n' + prompt
conv.append_message(conv.roles[0], inp)
conv.append_message(conv.roles[1], None)
prompt = conv.get_prompt()
input_ids = tokenizer_image_token(
prompt,
tokenizer,
IMAGE_TOKEN_INDEX,
return_tensors='pt'
).unsqueeze(0)
if device == "cuda":
input_ids = input_ids.to(device)
input_ids = input_ids[:, :-1] # </sep>がinputの最後に入るので削除する
stop_str = conv.sep if conv.sep_style != SeparatorStyle.TWO else conv.sep2
keywords = [stop_str]
streamer = TextStreamer(tokenizer, skip_prompt=True, timeout=20.0)
# predict
with torch.inference_mode():
output_id = model.generate(
inputs=input_ids,
images=image_tensor,
do_sample=False,
temperature=1.0,
top_p=1.0,
max_new_tokens=256,
streamer=streamer,
use_cache=True,
)
"""画像には、木製の表面に座っている猫が描かれています。猫は、ラップトップの画面に集中しています。ラップトップは、黒い金属フレームと白いキーボードを持つ、鮮やかなオレンジ色です。猫の目は閉じており、リラックスした状態を示唆しています。背景は、猫のラップトップとその周囲の詳細を強調する灰色のテクスチャーです。画像にはテキストや他のオブジェクトは含まれていません。猫とラップトップの相対的な位置関係は、猫がラップトップの画面に集中していることを示唆しています。画像には他のオブジェクトや行動は含まれていません。<EOD|LLM-jp>"""
Training dataset
Stage1 Pretrain
Stage2 Fine-tuning
Acknowledgement
License
CC BY 4.0
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