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README.md
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- text2text-generation
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- image-text-to-text
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library_name: transformers.js
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---
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- text2text-generation
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- image-text-to-text
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library_name: transformers.js
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---
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https://huggingface.co/microsoft/Florence-2-base-ft with ONNX weights to be compatible with Transformers.js.
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## Usage (Transformers.js)
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> [!IMPORTANT]
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> NOTE: Florence-2 support is experimental and requires you to install Transformers.js [v3](https://github.com/xenova/transformers.js/tree/v3) from source.
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If you haven't already, you can install the [Transformers.js](https://huggingface.co/docs/transformers.js) JavaScript library from [GitHub](https://github.com/xenova/transformers.js/tree/v3) using:
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```bash
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npm install xenova/transformers.js#v3
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```
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**Example:** Perform image captioning with `onnx-community/Florence-2-base-ft`.
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```js
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import {
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Florence2ForConditionalGeneration,
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AutoProcessor,
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AutoTokenizer,
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RawImage,
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} from '@xenova/transformers';
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// Load model, processor, and tokenizer
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const model_id = 'onnx-community/Florence-2-base-ft';
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const model = await Florence2ForConditionalGeneration.from_pretrained(model_id, { dtype: 'fp32' });
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const processor = await AutoProcessor.from_pretrained(model_id);
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const tokenizer = await AutoTokenizer.from_pretrained(model_id);
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// Load image and prepare vision inputs
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const url = 'https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/transformers/tasks/car.jpg';
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const image = await RawImage.fromURL(url);
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const vision_inputs = await processor(image);
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// Specify task and prepare text inputs
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const task = '<MORE_DETAILED_CAPTION>'
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const prompts = processor.construct_prompts(task);
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const text_inputs = tokenizer(prompts);
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// Generate text
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const generated_ids = await model.generate({
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...text_inputs,
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...vision_inputs,
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max_new_tokens: 100,
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});
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// Decode generated text
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const generated_text = tokenizer.batch_decode(generated_ids, { skip_special_tokens: false })[0];
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// Post-process the generated text
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const result = processor.post_process_generation(generated_text, task, image.size);
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console.log(result);
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// { '<MORE_DETAILED_CAPTION>': 'A green car is parked in front of a tan building. There is a brown door on the building behind the car. There are two windows on the front of the building. ' }
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```
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We also released an online demo, which you can try yourself: https://huggingface.co/spaces/Xenova/florence2-webgpu
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<video controls autoplay src="https://cdn-uploads.huggingface.co/production/uploads/61b253b7ac5ecaae3d1efe0c/BJj3jQXNqS_7Nt2MSb2ss.mp4"></video>
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---
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Note: Having a separate repo for ONNX weights is intended to be a temporary solution until WebML gains more traction. If you would like to make your models web-ready, we recommend converting to ONNX using [🤗 Optimum](https://huggingface.co/docs/optimum/index) and structuring your repo like this one (with ONNX weights located in a subfolder named `onnx`).
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