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README.md
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---
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license: mit
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---
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# DPT 3.1 (BEiT backbone)
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DPT (Dense Prediction Transformer) model trained on 1.4 million images for monocular depth estimation. It was introduced in the paper [Vision Transformers for Dense Prediction](https://arxiv.org/abs/2103.13413) by Ranftl et al. (2021) and first released in [this repository](https://github.com/isl-org/MiDaS/tree/master).
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Disclaimer: The team releasing DPT did not write a model card for this model so this model card has been written by the Hugging Face team.
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## Model description
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This DPT model uses the [BEiT](https://huggingface.co/docs/transformers/model_doc/beit) model as backbone and adds a neck + head on top for monocular depth estimation.
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![model image](https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/dpt_architecture.jpg)
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## How to use
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Here is how to use this model for zero-shot depth estimation on an image:
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```python
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from transformers import DPTImageProcessor, DPTForDepthEstimation
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import torch
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import numpy as np
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from PIL import Image
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import requests
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url = "http://images.cocodataset.org/val2017/000000039769.jpg"
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image = Image.open(requests.get(url, stream=True).raw)
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processor = DPTImageProcessor.from_pretrained("Intel/dpt-beit-large-512")
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model = DPTForDepthEstimation.from_pretrained("Intel/dpt-beit-large-512")
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# prepare image for the model
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inputs = processor(images=image, return_tensors="pt")
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with torch.no_grad():
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outputs = model(**inputs)
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predicted_depth = outputs.predicted_depth
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# interpolate to original size
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prediction = torch.nn.functional.interpolate(
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predicted_depth.unsqueeze(1),
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size=image.size[::-1],
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mode="bicubic",
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align_corners=False,
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)
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# visualize the prediction
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output = prediction.squeeze().cpu().numpy()
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formatted = (output * 255 / np.max(output)).astype("uint8")
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depth = Image.fromarray(formatted)
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```
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or one can use the pipeline API:
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```python
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from transformers import pipeline
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pipe = pipeline(task="depth-estimation", model="Intel/dpt-beit-large-512")
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result = pipe("http://images.cocodataset.org/val2017/000000039769.jpg")
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result["depth"]
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```
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