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license: apache-2.0
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---
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---
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license: apache-2.0
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---
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# Mocha Checkpoint for BLIP-Large Model
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The official checkpoint of BLIP-Large model, finetuned on MS-COCO with the MOCHa RL frameword, introduced in [MOCHa: Multi-Objective Reinforcement Mitigating Caption Hallucinations](https://arxiv.org/pdf/2312.03631.pdf)
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[Project Page](https://assafbk.github.io/mocha/)
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## Usage
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You can use this model for conditional and un-conditional image captioning
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### Using the Pytorch model
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#### Running the model on CPU
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<details>
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<summary> Click to expand </summary>
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```python
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import requests
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from PIL import Image
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from transformers import BlipProcessor, BlipForConditionalGeneration
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processor = BlipProcessor.from_pretrained("moranyanuka/blip-image-captioning-large-mocha")
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model = BlipForConditionalGeneration.from_pretrained("moranyanuka/blip-image-captioning-large-mocha")
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img_url = 'https://storage.googleapis.com/sfr-vision-language-research/BLIP/demo.jpg'
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raw_image = Image.open(requests.get(img_url, stream=True).raw).convert('RGB')
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# conditional image captioning
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text = "a photography of"
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inputs = processor(raw_image, text, return_tensors="pt")
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out = model.generate(**inputs)
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print(processor.decode(out[0], skip_special_tokens=True))
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# unconditional image captioning
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inputs = processor(raw_image, return_tensors="pt")
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out = model.generate(**inputs)
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print(processor.decode(out[0], skip_special_tokens=True))
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```
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</details>
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#### Running the model on GPU
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##### In full precision
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<details>
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<summary> Click to expand </summary>
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```python
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import requests
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from PIL import Image
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from transformers import BlipProcessor, BlipForConditionalGeneration
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processor = BlipProcessor.from_pretrained("moranyanuka/blip-image-captioning-large-mocha")
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model = BlipForConditionalGeneration.from_pretrained("moranyanuka/blip-image-captioning-large-mocha").to("cuda")
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img_url = 'https://storage.googleapis.com/sfr-vision-language-research/BLIP/demo.jpg'
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raw_image = Image.open(requests.get(img_url, stream=True).raw).convert('RGB')
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# conditional image captioning
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text = "a photography of"
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inputs = processor(raw_image, text, return_tensors="pt").to("cuda")
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out = model.generate(**inputs)
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print(processor.decode(out[0], skip_special_tokens=True))
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# unconditional image captioning
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inputs = processor(raw_image, return_tensors="pt").to("cuda")
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out = model.generate(**inputs)
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print(processor.decode(out[0], skip_special_tokens=True))
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```
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</details>
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##### In half precision (`float16`)
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<details>
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<summary> Click to expand </summary>
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```python
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import torch
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import requests
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from PIL import Image
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from transformers import BlipProcessor, BlipForConditionalGeneration
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processor = BlipProcessor.from_pretrained("moranyanuka/blip-image-captioning-large-mocha")
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model = BlipForConditionalGeneration.from_pretrained("moranyanuka/blip-image-captioning-large-mocha", torch_dtype=torch.float16).to("cuda")
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img_url = 'https://storage.googleapis.com/sfr-vision-language-research/BLIP/demo.jpg'
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raw_image = Image.open(requests.get(img_url, stream=True).raw).convert('RGB')
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# conditional image captioning
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text = "a photography of"
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inputs = processor(raw_image, text, return_tensors="pt").to("cuda", torch.float16)
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out = model.generate(**inputs)
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print(processor.decode(out[0], skip_special_tokens=True))
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# >>> a photography of a woman and her dog
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# unconditional image captioning
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inputs = processor(raw_image, return_tensors="pt").to("cuda", torch.float16)
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out = model.generate(**inputs)
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print(processor.decode(out[0], skip_special_tokens=True))
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>>> a woman sitting on the beach with her dog
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```
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</details>
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bibtex:
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```
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@misc{benkish2023mocha,
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title={MOCHa: Multi-Objective Reinforcement Mitigating Caption Hallucinations},
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author={Assaf Ben-Kish and Moran Yanuka and Morris Alper and Raja Giryes and Hadar Averbuch-Elor},
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year={2023},
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eprint={2312.03631},
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archivePrefix={arXiv},
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primaryClass={cs.CV}
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}
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