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<html> |
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<head> |
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<meta content="text/html;charset=utf-8" http-equiv="Content-Type" /> |
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<title>Candle Segment Anything Model (SAM) Rust/WASM</title> |
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</head> |
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<body></body> |
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</html> |
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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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<script src="https://cdn.tailwindcss.com/3.4.3"></script> |
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<script type="module"> |
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const MODEL_BASEURL = |
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"https://huggingface.co/lmz/candle-sam/resolve/main/"; |
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const MODELS = { |
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sam_mobile_tiny: { |
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url: "mobile_sam-tiny-vitt.safetensors", |
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}, |
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sam_base: { |
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url: "sam_vit_b_01ec64.safetensors", |
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}, |
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}; |
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const samWorker = new Worker("./samWorker.js", { type: "module" }); |
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async function segmentPoints( |
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modelURL, |
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modelID, |
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imageURL, |
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points |
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) { |
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return new Promise((resolve, reject) => { |
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function messageHandler(event) { |
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console.log(event.data); |
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if ("status" in event.data) { |
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updateStatus(event.data); |
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} |
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if ("error" in event.data) { |
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samWorker.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-embedding") { |
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samWorker.removeEventListener("message", messageHandler); |
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resolve(); |
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} |
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if (event.data.status === "complete") { |
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samWorker.removeEventListener("message", messageHandler); |
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resolve(event.data.output); |
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} |
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} |
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samWorker.addEventListener("message", messageHandler); |
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samWorker.postMessage({ |
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modelURL, |
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modelID, |
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imageURL, |
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points, |
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}); |
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}); |
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} |
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function updateStatus(statusMessage) { |
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statusOutput.innerText = event.data.message; |
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} |
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let copyMaskURL = null; |
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let copyImageURL = null; |
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const clearBtn = document.querySelector("#clear-btn"); |
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const maskBtn = document.querySelector("#mask-btn"); |
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const undoBtn = document.querySelector("#undo-btn"); |
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const downloadBtn = document.querySelector("#download-btn"); |
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const canvas = document.querySelector("#canvas"); |
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const mask = document.querySelector("#mask"); |
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const ctxCanvas = canvas.getContext("2d"); |
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const ctxMask = mask.getContext("2d"); |
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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 dropButtons = document.querySelector("#drop-buttons"); |
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const imagesExamples = document.querySelector("#image-select"); |
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const modelSelection = document.querySelector("#model"); |
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const statusOutput = document.querySelector("#output-status"); |
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fileUpload.addEventListener("input", (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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copyImageURL = href; |
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drawImageCanvas(href); |
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setImageEmbeddings(href); |
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togglePointMode(false); |
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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", (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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copyImageURL = href; |
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drawImageCanvas(href); |
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setImageEmbeddings(href); |
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togglePointMode(false); |
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} else if (url) { |
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clearImageCanvas(); |
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copyImageURL = url; |
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drawImageCanvas(url); |
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setImageEmbeddings(url); |
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togglePointMode(false); |
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} |
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}); |
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let hasImage = false; |
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let isSegmenting = false; |
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let isEmbedding = false; |
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let currentImageURL = ""; |
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let pointArr = []; |
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let bgPointMode = false; |
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imagesExamples.addEventListener("click", (e) => { |
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if (isEmbedding || isSegmenting) { |
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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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drawImageCanvas(href); |
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setImageEmbeddings(href); |
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copyImageURL = href; |
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} |
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}); |
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maskBtn.addEventListener("click", () => { |
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togglePointMode(); |
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}); |
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clearBtn.addEventListener("click", () => { |
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clearImageCanvas(); |
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togglePointMode(false); |
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pointArr = []; |
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}); |
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undoBtn.addEventListener("click", () => { |
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undoPoint(); |
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}); |
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downloadBtn.addEventListener("click", async () => { |
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const loadImageAsync = (imageURL) => { |
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return new Promise((resolve) => { |
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const img = new Image(); |
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img.onload = () => { |
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resolve(img); |
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}; |
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img.crossOrigin = "anonymous"; |
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img.src = imageURL; |
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}); |
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}; |
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const originalImage = await loadImageAsync(copyImageURL); |
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const maskImage = await loadImageAsync(copyMaskURL); |
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const canvas = document.createElement("canvas"); |
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const ctx = canvas.getContext("2d"); |
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canvas.width = originalImage.width; |
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canvas.height = originalImage.height; |
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ctx.drawImage(maskImage, 0, 0); |
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ctx.globalCompositeOperation = "source-in"; |
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ctx.drawImage(originalImage, 0, 0); |
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const blobPromise = new Promise((resolve) => { |
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canvas.toBlob(resolve); |
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}); |
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const blob = await blobPromise; |
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const resultURL = URL.createObjectURL(blob); |
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const link = document.createElement("a"); |
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link.href = resultURL; |
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link.download = "cutout.png"; |
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link.click(); |
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}); |
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canvas.addEventListener("click", async (event) => { |
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if (!hasImage || isEmbedding || isSegmenting) { |
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return; |
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} |
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const backgroundMode = event.shiftKey ? bgPointMode^event.shiftKey : bgPointMode; |
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const targetBox = event.target.getBoundingClientRect(); |
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const x = (event.clientX - targetBox.left) / targetBox.width; |
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const y = (event.clientY - targetBox.top) / targetBox.height; |
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const ptsToRemove = []; |
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for (const [idx, pts] of pointArr.entries()) { |
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const d = Math.sqrt((pts[0] - x) ** 2 + (pts[1] - y) ** 2); |
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if (d < 6 / targetBox.width) { |
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ptsToRemove.push(idx); |
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} |
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} |
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if (ptsToRemove.length > 0) { |
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pointArr = pointArr.filter((_, idx) => !ptsToRemove.includes(idx)); |
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} else { |
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pointArr = [...pointArr, [x, y, !backgroundMode]]; |
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} |
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undoBtn.disabled = false; |
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downloadBtn.disabled = false; |
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if (pointArr.length == 0) { |
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ctxMask.clearRect(0, 0, canvas.width, canvas.height); |
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undoBtn.disabled = true; |
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downloadBtn.disabled = true; |
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return; |
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} |
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isSegmenting = true; |
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const { maskURL } = await getSegmentationMask(pointArr); |
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isSegmenting = false; |
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copyMaskURL = maskURL; |
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drawMask(maskURL, pointArr); |
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}); |
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async function undoPoint() { |
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if (!hasImage || isEmbedding || isSegmenting) { |
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return; |
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} |
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if (pointArr.length === 0) { |
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return; |
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} |
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pointArr.pop(); |
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if (pointArr.length === 0) { |
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ctxMask.clearRect(0, 0, canvas.width, canvas.height); |
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undoBtn.disabled = true; |
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return; |
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} |
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isSegmenting = true; |
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const { maskURL } = await getSegmentationMask(pointArr); |
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isSegmenting = false; |
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copyMaskURL = maskURL; |
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drawMask(maskURL, pointArr); |
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} |
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function togglePointMode(mode) { |
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bgPointMode = mode === undefined ? !bgPointMode : mode; |
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maskBtn.querySelector("span").innerText = bgPointMode |
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? "Background Point" |
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: "Mask Point"; |
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if (bgPointMode) { |
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maskBtn.querySelector("#mask-circle").setAttribute("hidden", ""); |
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maskBtn.querySelector("#unmask-circle").removeAttribute("hidden"); |
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} else { |
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maskBtn.querySelector("#mask-circle").removeAttribute("hidden"); |
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maskBtn.querySelector("#unmask-circle").setAttribute("hidden", ""); |
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} |
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} |
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async function getSegmentationMask(points) { |
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const modelID = modelSelection.value; |
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const modelURL = MODEL_BASEURL + MODELS[modelID].url; |
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const imageURL = currentImageURL; |
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const { maskURL } = await segmentPoints( |
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modelURL, |
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modelID, |
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imageURL, |
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points |
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); |
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return { maskURL }; |
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} |
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async function setImageEmbeddings(imageURL) { |
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if (isEmbedding) { |
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return; |
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} |
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canvas.classList.remove("cursor-pointer"); |
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canvas.classList.add("cursor-wait"); |
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clearBtn.disabled = true; |
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const modelID = modelSelection.value; |
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const modelURL = MODEL_BASEURL + MODELS[modelID].url; |
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isEmbedding = true; |
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await segmentPoints(modelURL, modelID, imageURL); |
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canvas.classList.remove("cursor-wait"); |
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canvas.classList.add("cursor-pointer"); |
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clearBtn.disabled = false; |
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isEmbedding = false; |
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currentImageURL = imageURL; |
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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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ctxMask.clearRect(0, 0, canvas.width, canvas.height); |
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hasImage = false; |
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isEmbedding = false; |
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isSegmenting = false; |
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currentImageURL = ""; |
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pointArr = []; |
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clearBtn.disabled = true; |
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canvas.parentElement.style.height = "auto"; |
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dropButtons.classList.remove("invisible"); |
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} |
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function drawMask(maskURL, points) { |
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if (!maskURL) { |
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throw new Error("No mask URL provided"); |
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} |
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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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mask.width = canvas.width; |
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mask.height = canvas.height; |
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ctxMask.save(); |
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ctxMask.drawImage(canvas, 0, 0); |
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ctxMask.globalCompositeOperation = "source-atop"; |
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ctxMask.fillStyle = "rgba(255, 0, 0, 0.6)"; |
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ctxMask.fillRect(0, 0, canvas.width, canvas.height); |
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ctxMask.globalCompositeOperation = "destination-in"; |
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ctxMask.drawImage(img, 0, 0); |
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ctxMask.globalCompositeOperation = "source-over"; |
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for (const pt of points) { |
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if (pt[2]) { |
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ctxMask.fillStyle = "rgba(0, 255, 255, 1)"; |
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} else { |
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ctxMask.fillStyle = "rgba(255, 255, 0, 1)"; |
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} |
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ctxMask.beginPath(); |
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ctxMask.arc( |
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pt[0] * canvas.width, |
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pt[1] * canvas.height, |
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3, |
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0, |
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2 * Math.PI |
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); |
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ctxMask.fill(); |
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} |
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ctxMask.restore(); |
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}; |
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img.src = maskURL; |
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} |
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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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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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hasImage = true; |
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clearBtn.disabled = false; |
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dropButtons.classList.add("invisible"); |
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}; |
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img.src = imgURL; |
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} |
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const observer = new ResizeObserver((entries) => { |
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for (let entry of entries) { |
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if (entry.target === canvas) { |
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canvas.parentElement.style.height = canvas.offsetHeight + "px"; |
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} |
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} |
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}); |
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observer.observe(canvas); |
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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-8 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 Segment Anything</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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Zero-shot image segmentation with |
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<a |
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href="https://segment-anything.com" |
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class="underline hover:text-blue-500 hover:no-underline" |
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target="_blank" |
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>Segment Anything Model (SAM)</a |
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> |
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and |
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<a |
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href="https://github.com/ChaoningZhang/MobileSAM" |
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class="underline hover:text-blue-500 hover:no-underline" |
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target="_blank" |
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>MobileSAM </a |
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>. It runs in the browser with a WASM runtime built with |
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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 |
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</a> |
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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">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"> |
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<option value="sam_mobile_tiny" selected> |
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Mobile SAM Tiny (40.6 MB) |
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</option> |
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<option value="sam_base">SAM Base (375 MB)</option> |
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</select> |
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</div> |
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<div> |
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<p class="text-xs italic max-w-lg"> |
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<b>Note:</b> |
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The model's first run may take a few seconds as it loads and caches |
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the model in the browser, and then creates the image embeddings. Any |
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subsequent clicks on points will be significantly faster. |
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</p> |
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</div> |
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<div class="relative max-w-2xl"> |
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<div class="flex justify-between items-center"> |
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<div class="px-2 rounded-md inline text-xs"> |
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<span id="output-status" class="m-auto font-light"></span> |
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</div> |
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<div class="flex gap-2"> |
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<button |
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id="mask-btn" |
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title="Toggle Mask Point and Background Point" |
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class="text-xs bg-white rounded-md disabled:opacity-50 flex gap-1 items-center"> |
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<span>Mask Point</span> |
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<svg |
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xmlns="http://www.w3.org/2000/svg" |
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height="1em" |
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viewBox="0 0 512 512"> |
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<path |
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id="mask-circle" |
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d="M256 512a256 256 0 1 0 0-512 256 256 0 1 0 0 512z" /> |
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<path |
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id="unmask-circle" |
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hidden |
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d="M464 256a208 208 0 1 0-416 0 208 208 0 1 0 416 0zM0 256a256 256 0 1 1 512 0 256 256 0 1 1-512 0z" /> |
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</svg> |
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</button> |
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<button |
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id="undo-btn" |
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disabled |
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title="Undo Last Point" |
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class="text-xs bg-white rounded-md disabled:opacity-50 flex gap-1 items-center"> |
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<svg |
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xmlns="http://www.w3.org/2000/svg" |
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height="1em" |
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viewBox="0 0 512 512"> |
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<path |
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d="M48.5 224H40a24 24 0 0 1-24-24V72a24 24 0 0 1 41-17l41.6 41.6a224 224 0 1 1-1 317.8 32 32 0 0 1 45.3-45.3 160 160 0 1 0 1-227.3L185 183a24 24 0 0 1-17 41H48.5z" /> |
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</svg> |
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</button> |
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|
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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="text-xs bg-white rounded-md disabled:opacity-50 flex gap-1 items-center"> |
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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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<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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</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 p-20 w-full overflow-hidden"> |
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<div |
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id="drop-buttons" |
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class="flex flex-col items-center justify-center space-y-1 text-center relative z-10"> |
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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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<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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</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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<span>Drag and drop your 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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</div> |
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<canvas id="canvas" class="absolute w-full"></canvas> |
|
<canvas |
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id="mask" |
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class="pointer-events-none absolute w-full"></canvas> |
|
</div> |
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<div class="text-right py-2"> |
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<button |
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id="share-btn" |
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class="bg-white rounded-md hover:outline outline-orange-200 disabled:opacity-50 invisible"> |
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<img |
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src="https://huggingface.co/datasets/huggingface/badges/raw/main/share-to-community-sm.svg" /> |
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</button> |
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|
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<button |
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id="download-btn" |
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title="Copy result (.png)" |
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disabled |
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class="p-1 px-2 text-xs font-medium bg-white rounded-2xl outline outline-gray-200 hover:outline-orange-200 disabled:opacity-50" |
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> |
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Download the result (png file) |
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</button> |
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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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<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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<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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<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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</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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