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<!DOCTYPE html> |
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<html> |
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<head> |
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<meta charset="UTF-8" /> |
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<meta name="viewport" content="width=device-width, initial-scale=1.0" /> |
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<style> |
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@import url("https://fonts.googleapis.com/css2?family=Source+Code+Pro:wght@200;300;400&family=Source+Sans+3:wght@100;200;300;400;500;600;700;800;900&display=swap"); |
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html, |
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body { |
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font-family: "Source Sans 3", sans-serif; |
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} |
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</style> |
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<title>Candle Blip Image Captioning Demo</title> |
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<script src="https://cdn.tailwindcss.com/3.4.3"></script> |
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<script type="module" src="./code.js"></script> |
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<script type="module"> |
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const MODELS = { |
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blip_image_quantized_q4k: { |
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base_url: "https://huggingface.co/lmz/candle-blip/resolve/main/", |
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model: "blip-image-captioning-large-q4k.gguf", |
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config: "config.json", |
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tokenizer: "tokenizer.json", |
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quantized: true, |
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size: "271 MB", |
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}, |
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blip_image_quantized_q80: { |
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base_url: "https://huggingface.co/lmz/candle-blip/resolve/main/", |
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model: "blip-image-captioning-large-q80.gguf", |
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config: "config.json", |
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tokenizer: "tokenizer.json", |
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quantized: true, |
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size: "505 MB", |
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}, |
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blip_image_large: { |
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base_url: |
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"https://huggingface.co/Salesforce/blip-image-captioning-large/resolve/refs%2Fpr%2F18/", |
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model: "model.safetensors", |
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config: "config.json", |
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tokenizer: "tokenizer.json", |
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quantized: false, |
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size: "1.88 GB", |
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}, |
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}; |
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const blipWorker = new Worker("./blipWorker.js", { |
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type: "module", |
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}); |
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const outputStatusEl = document.querySelector("#output-status"); |
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const outputCaptionEl = document.querySelector("#output-caption"); |
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const modelSelectEl = document.querySelector("#model"); |
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const clearBtn = document.querySelector("#clear-btn"); |
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const fileUpload = document.querySelector("#file-upload"); |
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const dropArea = document.querySelector("#drop-area"); |
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const imagesExamples = document.querySelector("#image-select"); |
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const canvas = document.querySelector("#canvas"); |
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const ctxCanvas = canvas.getContext("2d"); |
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|
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let isCaptioning = false; |
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let currentImageURL = null; |
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clearBtn.addEventListener("click", () => { |
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clearImageCanvas(); |
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}); |
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modelSelectEl.addEventListener("change", () => { |
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if (currentImageURL) { |
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runInference(currentImageURL); |
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} |
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}); |
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fileUpload.addEventListener("input", async (e) => { |
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const target = e.target; |
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if (target.files.length > 0) { |
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const href = URL.createObjectURL(target.files[0]); |
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clearImageCanvas(); |
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await drawImageCanvas(href); |
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runInference(href); |
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} |
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}); |
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dropArea.addEventListener("dragenter", (e) => { |
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e.preventDefault(); |
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dropArea.classList.add("border-blue-700"); |
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}); |
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dropArea.addEventListener("dragleave", (e) => { |
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e.preventDefault(); |
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dropArea.classList.remove("border-blue-700"); |
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}); |
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dropArea.addEventListener("dragover", (e) => { |
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e.preventDefault(); |
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}); |
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dropArea.addEventListener("drop", async (e) => { |
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e.preventDefault(); |
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dropArea.classList.remove("border-blue-700"); |
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const url = e.dataTransfer.getData("text/uri-list"); |
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const files = e.dataTransfer.files; |
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|
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if (files.length > 0) { |
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const href = URL.createObjectURL(files[0]); |
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clearImageCanvas(); |
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await drawImageCanvas(href); |
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runInference(href); |
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} else if (url) { |
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clearImageCanvas(); |
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await drawImageCanvas(url); |
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runInference(url); |
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} |
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}); |
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imagesExamples.addEventListener("click", async (e) => { |
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if (isCaptioning) { |
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return; |
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} |
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const target = e.target; |
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if (target.nodeName === "IMG") { |
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const href = target.src; |
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clearImageCanvas(); |
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await drawImageCanvas(href); |
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runInference(href); |
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} |
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}); |
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function clearImageCanvas() { |
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ctxCanvas.clearRect(0, 0, canvas.width, canvas.height); |
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isCaptioning = false; |
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clearBtn.disabled = true; |
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canvas.parentElement.style.height = "auto"; |
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outputStatusEl.hidden = false; |
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outputCaptionEl.hidden = true; |
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outputStatusEl.innerText = "Please select an image"; |
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currentImageURL = null; |
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} |
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async function drawImageCanvas(imgURL) { |
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if (!imgURL) { |
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throw new Error("No image URL provided"); |
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} |
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return new Promise((resolve, reject) => { |
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ctxCanvas.clearRect(0, 0, canvas.width, canvas.height); |
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ctxCanvas.clearRect(0, 0, canvas.width, canvas.height); |
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const img = new Image(); |
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img.crossOrigin = "anonymous"; |
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img.onload = () => { |
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canvas.width = img.width; |
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canvas.height = img.height; |
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ctxCanvas.drawImage(img, 0, 0); |
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canvas.parentElement.style.height = canvas.offsetHeight + "px"; |
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clearBtn.disabled = false; |
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resolve(img); |
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}; |
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img.src = imgURL; |
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currentImageURL = imgURL; |
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}); |
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} |
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document.addEventListener("DOMContentLoaded", () => { |
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for (const [id, model] of Object.entries(MODELS)) { |
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const option = document.createElement("option"); |
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option.value = id; |
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option.innerText = `${id} (${model.size})`; |
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modelSelectEl.appendChild(option); |
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} |
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}); |
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async function getImageCaption( |
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worker, |
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weightsURL, |
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tokenizerURL, |
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configURL, |
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modelID, |
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imageURL, |
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quantized, |
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updateStatus = null |
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) { |
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return new Promise((resolve, reject) => { |
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worker.postMessage({ |
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weightsURL, |
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tokenizerURL, |
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configURL, |
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modelID, |
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imageURL, |
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quantized, |
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}); |
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function messageHandler(event) { |
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if ("error" in event.data) { |
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worker.removeEventListener("message", messageHandler); |
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reject(new Error(event.data.error)); |
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} |
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if (event.data.status === "complete") { |
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worker.removeEventListener("message", messageHandler); |
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resolve(event.data); |
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} |
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if (updateStatus) updateStatus(event.data); |
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} |
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worker.addEventListener("message", messageHandler); |
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}); |
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} |
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function updateStatus(data) { |
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if (data.status === "status") { |
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outputStatusEl.innerText = data.message; |
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} |
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} |
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async function runInference(imageURL) { |
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if (isCaptioning || !imageURL) { |
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alert("Please select an image first"); |
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return; |
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} |
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outputStatusEl.hidden = false; |
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outputCaptionEl.hidden = true; |
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clearBtn.disabled = true; |
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modelSelectEl.disabled = true; |
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isCaptioning = true; |
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const selectedModel = modelSelectEl.value; |
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const model = MODELS[selectedModel]; |
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const weightsURL = `${model.base_url}${model.model}`; |
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const tokenizerURL = `${model.base_url}${model.tokenizer}`; |
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const configURL = `${model.base_url}${model.config}`; |
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const quantized = model.quantized; |
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try { |
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const time = performance.now(); |
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const caption = await getImageCaption( |
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blipWorker, |
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weightsURL, |
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tokenizerURL, |
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configURL, |
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selectedModel, |
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imageURL, |
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quantized, |
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updateStatus |
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); |
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outputStatusEl.hidden = true; |
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outputCaptionEl.hidden = false; |
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const totalTime = ((performance.now() - time)/1000).toFixed(2); |
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outputCaptionEl.innerHTML = `${ |
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caption.output |
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}<br/><span class="text-xs">Inference time: ${totalTime} s</span>`; |
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} catch (err) { |
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console.error(err); |
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outputStatusEl.hidden = false; |
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outputCaptionEl.hidden = true; |
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outputStatusEl.innerText = err.message; |
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} |
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clearBtn.disabled = false; |
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modelSelectEl.disabled = false; |
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isCaptioning = false; |
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} |
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</script> |
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</head> |
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<body class="container max-w-4xl mx-auto p-4"> |
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<main class="grid grid-cols-1 gap-5 relative"> |
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<span class="absolute text-5xl -ml-[1em]"> 🕯️ </span> |
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<div> |
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<h1 class="text-5xl font-bold">Candle BLIP Image Captioning</h1> |
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<h2 class="text-2xl font-bold">Rust/WASM Demo</h2> |
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<p class="max-w-lg"> |
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<a |
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href="https://huggingface.co/Salesforce/blip-image-captioning-large" |
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target="_blank" |
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class="underline hover:text-blue-500 hover:no-underline" |
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>BLIP Image Captioning |
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</a> |
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running in the browser using |
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<a |
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href="https://github.com/huggingface/candle/" |
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target="_blank" |
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class="underline hover:text-blue-500 hover:no-underline" |
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>Candle</a |
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>, a minimalist ML framework for Rust. |
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</p> |
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<p class="text-xs max-w-lg py-2"> |
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<b>Note:</b> |
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The image captioning on the smallest model takes about ~50 seconds, it |
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will vary depending on your machine and model size. |
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</p> |
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</div> |
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<div> |
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<label for="model" class="font-medium block">Models Options: </label> |
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<select |
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id="model" |
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class="border-2 border-gray-500 rounded-md font-light interactive disabled:cursor-not-allowed w-full max-w-max" |
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></select> |
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</div> |
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<div class="grid gap-4 sm:grid-cols-2 py-4"> |
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<div class="relative max-w-lg"> |
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<div |
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class="absolute w-full bottom-full flex justify-between items-center" |
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> |
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<div class="flex gap-2 w-full"> |
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<button |
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id="clear-btn" |
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disabled |
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title="Clear Image" |
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class="ml-auto text-xs bg-white rounded-md disabled:opacity-50 flex gap-1 items-center" |
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> |
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<svg |
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class="" |
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xmlns="http://www.w3.org/2000/svg" |
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viewBox="0 0 13 12" |
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height="1em" |
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> |
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<path |
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d="M1.6.7 12 11.1M12 .7 1.6 11.1" |
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stroke="#2E3036" |
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stroke-width="2" |
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/> |
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</svg> |
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</button> |
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</div> |
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</div> |
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<div |
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id="drop-area" |
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class="flex flex-col items-center justify-center border-2 border-gray-300 border-dashed rounded-xl relative aspect-video w-full overflow-hidden" |
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> |
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<div |
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class="flex flex-col items-center justify-center space-y-1 text-center" |
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> |
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<svg |
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width="25" |
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height="25" |
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viewBox="0 0 25 25" |
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fill="none" |
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xmlns="http://www.w3.org/2000/svg" |
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> |
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<path |
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d="M3.5 24.3a3 3 0 0 1-1.9-.8c-.5-.5-.8-1.2-.8-1.9V2.9c0-.7.3-1.3.8-1.9.6-.5 1.2-.7 2-.7h18.6c.7 0 1.3.2 1.9.7.5.6.7 1.2.7 2v18.6c0 .7-.2 1.4-.7 1.9a3 3 0 0 1-2 .8H3.6Zm0-2.7h18.7V2.9H3.5v18.7Zm2.7-2.7h13.3c.3 0 .5 0 .6-.3v-.7l-3.7-5a.6.6 0 0 0-.6-.2c-.2 0-.4 0-.5.3l-3.5 4.6-2.4-3.3a.6.6 0 0 0-.6-.3c-.2 0-.4.1-.5.3l-2.7 3.6c-.1.2-.2.4 0 .7.1.2.3.3.6.3Z" |
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fill="#000" |
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/> |
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</svg> |
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<div class="flex text-sm text-gray-600"> |
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<label |
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for="file-upload" |
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class="relative cursor-pointer bg-white rounded-md font-medium text-blue-950 hover:text-blue-700" |
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> |
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<span>Drag and drop y our image here</span> |
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<span class="block text-xs">or</span> |
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<span class="block text-xs">Click to upload</span> |
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</label> |
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</div> |
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<input |
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id="file-upload" |
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name="file-upload" |
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type="file" |
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class="sr-only" |
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/> |
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</div> |
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<canvas |
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id="canvas" |
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class="absolute pointer-events-none w-full" |
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></canvas> |
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</div> |
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</div> |
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<div class=""> |
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<div |
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class="h-full bg-slate-100 text-gray-500 p-4 rounded-md flex flex-col gap-2" |
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> |
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<p |
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id="output-caption" |
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class="m-auto text-xl text-center p-2" |
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hidden |
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></p> |
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<span id="output-status" class="m-auto font-light"> |
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Please select an image |
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</span> |
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</div> |
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</div> |
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</div> |
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<div> |
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<div |
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class="flex gap-3 items-center overflow-x-scroll" |
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id="image-select" |
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> |
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<h3 class="font-medium">Examples:</h3> |
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|
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<img |
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src="https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/candle/examples/sf.jpg" |
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class="cursor-pointer w-24 h-24 object-cover" |
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/> |
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<img |
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src="https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/candle/examples/bike.jpeg" |
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class="cursor-pointer w-24 h-24 object-cover" |
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/> |
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<img |
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src="https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/candle/examples/000000000077.jpg" |
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class="cursor-pointer w-24 h-24 object-cover" |
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/> |
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</div> |
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</div> |
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</main> |
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</body> |
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</html> |
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