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<!DOCTYPE html><html><head>  <meta charset="UTF-8">  <meta name="viewport" content="width=device-width, initial-scale=1.0">  <title>MNIST Visualization</title></head><body></body></html>

 
const createCanvas = (id) => {  const canvas = document.createElement('canvas')  canvas.id = id  canvas.width = 14  canvas.height = 14  document.body.appendChild(canvas)}​const drawImage = (data, canvasId) => {  const canvas = document.getElementById(canvasId)  const ctx = canvas.getContext('2d')  const imageData = ctx.createImageData(14, 14)​  data.image.forEach((pixel, index) => {    let value = pixel * 255    imageData.data[index * 4 + 0] = value  // Red    imageData.data[index * 4 + 1] = value  // Green    imageData.data[index * 4 + 2] = value  // Blue    imageData.data[index * 4 + 3] = 255    // Alpha  })​  // Create a temporary canvas to scale the image  const tempCanvas = document.createElement('canvas')  tempCanvas.width = 14  tempCanvas.height = 14  const tempCtx = tempCanvas.getContext('2d')  tempCtx.putImageData(imageData, 0, 0)    // Scale up the image to 280x280  ctx.imageSmoothingEnabled = false // Disable smoothing for pixelated effect  ctx.drawImage(tempCanvas, 0, 0, 14, 14, 0, 0, 140, 140)}​​const images = 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index) => {  const canvasId = `mnistCanvas${index}`  createCanvas(canvasId)  drawImage(image, canvasId)})

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abpaipro

6 Jun 2024

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