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README.md
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license: apache-2.0
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---
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license: apache-2.0
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---
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## Usage (Transformers.js)
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If you haven't already, you can install the [Transformers.js](https://huggingface.co/docs/transformers.js) JavaScript library from [NPM](https://www.npmjs.com/package/@huggingface/transformers) using:
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```bash
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npm i @huggingface/transformers
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```
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**Example:** Selfie segmentation with `onnx-community/mediapipe_selfie_segmentation-web`.
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```js
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import { AutoModel, RawImage, Tensor } from '@huggingface/transformers';
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// Load model and processor
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const model_id = 'onnx-community/mediapipe_selfie_segmentation-web';
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const model = await AutoModel.from_pretrained(model_id, { dtype: 'fp32' });
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// Load image from URL
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const url = 'https://huggingface.co/datasets/Xenova/transformers.js-docs/resolve/main/selfie_segmentation.png';
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const image = await RawImage.read(url);
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// Predict alpha matte
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const { alphas } = await model({
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pixel_values: new Tensor(
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'uint8',
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image.data,
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[1, image.height, image.width, 3],
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),
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});
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// Save output mask
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const mask = RawImage.fromTensor(alphas[0].mul(255).to('uint8'), 'HWC')
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mask.save('mask.png');
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// (Optional) Apply mask to original image
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const result = image.clone().putAlpha(mask);
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result.save('result.png');
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```
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| Input image | Predicted mask | Output image |
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| :----------:|:------------:|:------------:|
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| ![image/png](https://cdn-uploads.huggingface.co/production/uploads/61b253b7ac5ecaae3d1efe0c/NR--WRELcGKsY8c7dI7s5.png) | ![image/png](https://cdn-uploads.huggingface.co/production/uploads/61b253b7ac5ecaae3d1efe0c/tAsPevxCzxGank2iHXo7o.png) | ![image/png](https://cdn-uploads.huggingface.co/production/uploads/61b253b7ac5ecaae3d1efe0c/8RMmqdfcgr4cclN5Dv6ae.png) |
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