59 lines
2.7 KiB
Markdown
59 lines
2.7 KiB
Markdown
---
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license: other
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tags:
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- vision
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- image-segmentation
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datasets:
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- scene_parse_150
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widget:
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- src: https://huggingface.co/datasets/hf-internal-testing/fixtures_ade20k/resolve/main/ADE_val_00000001.jpg
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example_title: House
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- src: https://huggingface.co/datasets/hf-internal-testing/fixtures_ade20k/resolve/main/ADE_val_00000002.jpg
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example_title: Castle
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---
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# MaskFormer
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MaskFormer model trained on ADE20k semantic segmentation (large-sized version, Swin backbone). It was introduced in the paper [Per-Pixel Classification is Not All You Need for Semantic Segmentation](https://arxiv.org/abs/2107.06278) and first released in [this repository](https://github.com/facebookresearch/MaskFormer/blob/da3e60d85fdeedcb31476b5edd7d328826ce56cc/mask_former/modeling/criterion.py#L169).
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Disclaimer: The team releasing MaskFormer 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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MaskFormer addresses instance, semantic and panoptic segmentation with the same paradigm: by predicting a set of masks and corresponding labels. Hence, all 3 tasks are treated as if they were instance segmentation.
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## Intended uses & limitations
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You can use this particular checkpoint for semantic segmentation. See the [model hub](https://huggingface.co/models?search=maskformer) to look for other
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fine-tuned versions on a task that interests you.
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### How to use
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Here is how to use this model:
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```python
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from transformers import MaskFormerImageProcessor, MaskFormerForInstanceSegmentation
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from PIL import Image
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import requests
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url = "https://huggingface.co/datasets/hf-internal-testing/fixtures_ade20k/resolve/main/ADE_val_00000001.jpg"
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image = Image.open(requests.get(url, stream=True).raw)
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processor = MaskFormerImageProcessor.from_pretrained("facebook/maskformer-swin-large-ade")
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inputs = processor(images=image, return_tensors="pt")
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model = MaskFormerForInstanceSegmentation.from_pretrained("facebook/maskformer-swin-large-ade")
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outputs = model(**inputs)
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# model predicts class_queries_logits of shape `(batch_size, num_queries)`
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# and masks_queries_logits of shape `(batch_size, num_queries, height, width)`
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class_queries_logits = outputs.class_queries_logits
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masks_queries_logits = outputs.masks_queries_logits
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# you can pass them to processor for postprocessing
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# we refer to the demo notebooks for visualization (see "Resources" section in the MaskFormer docs)
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predicted_semantic_map = processor.post_process_semantic_segmentation(outputs, target_sizes=[image.size[::-1]])[0]
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```
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For more code examples, we refer to the [documentation](https://huggingface.co/docs/transformers/master/en/model_doc/maskformer). |