You can edit the below JavaScript code to customize the image tool.
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/**
* Processes an image to simulate a 3D Printer Scanner / Identifier Tool UI.
* It overlays a scanning effect, wireframe edges (mesh simulation), and high-tech 3D HUD data.
*
* @param {HTMLImageElement} originalImg - The input image to be processed.
* @param {string} scanColor - The color of the laser and HUD in hex (default: '#00ffcc').
* @param {number} scanProgress - Determine how far down the scan goes (0 to 100).
* @param {number} threshold - Sensitivity for the 3D surface edge detection (default: 15).
* @returns {HTMLCanvasElement} - The resulting canvas with the 3D scanner effect applied.
*/
function processImage(originalImg, scanColor = '#00ffcc', scanProgress = 65, threshold = 15) {
scanProgress = Number(scanProgress);
threshold = Number(threshold);
const canvas = document.createElement('canvas');
const width = originalImg.width;
const height = originalImg.height;
canvas.width = width;
canvas.height = height;
const ctx = canvas.getContext('2d', { willReadFrequently: true });
ctx.drawImage(originalImg, 0, 0);
try {
const imgData = ctx.getImageData(0, 0, width, height);
const data = imgData.data;
const outData = ctx.createImageData(width, height);
const out = outData.data;
// Parse hex color to RGB
let hex = String(scanColor).replace(/^#/, '');
if (hex.length === 3) hex = hex.split('').map(c => c + c).join('');
const rC = parseInt(hex.substring(0, 2), 16) || 0;
const gC = parseInt(hex.substring(2, 4), 16) || 255;
const bC = parseInt(hex.substring(4, 6), 16) || 204;
const scanLineY = Math.floor(height * (Math.max(0, Math.min(100, scanProgress)) / 100));
// Pre-calculate grayscale brightness map for fast edge detection
const brightness = new Uint8Array(width * height);
for (let i = 0; i < width * height; i++) {
brightness[i] = data[i * 4] * 0.299 + data[i * 4 + 1] * 0.587 + data[i * 4 + 2] * 0.114;
}
// Apply scan alterations (Edge Detection & Grid for mesh visualization)
const gridSize = Math.max(20, Math.floor(width * 0.03));
for (let y = 0; y < height; y++) {
for (let x = 0; x < width; x++) {
const idx = y * width + x;
const i = idx * 4;
if (y < scanLineY) {
// Check for edges to simulate 3D mesh building
let isEdge = false;
if (x < width - 1 && y < height - 1) {
const b0 = brightness[idx];
const bx = brightness[idx + 1];
const by = brightness[idx + width];
if (Math.abs(b0 - bx) + Math.abs(b0 - by) > threshold) {
isEdge = true;
}
}
if (isEdge) {
// glowing edge points
out[i] = rC;
out[i + 1] = gC;
out[i + 2] = bC;
out[i + 3] = 255;
} else {
// Dimmed grayscale with spatial voxel grid
const b = brightness[idx] * 0.25;
const isGrid = (x % gridSize === 0 || y % gridSize === 0);
out[i] = b + (isGrid ? rC * 0.15 : 0);
out[i + 1] = b + (isGrid ? gC * 0.15 : 0);
out[i + 2] = b + (isGrid ? bC * 0.15 : 0);
out[i + 3] = 255;
}
} else {
// Unscanned area remains original
out[i] = data[i];
out[i + 1] = data[i + 1];
out[i + 2] = data[i + 2];
out[i + 3] = data[i + 3];
}
}
}
ctx.putImageData(outData, 0, 0);
// --- DRAW HUD OVERLAY ---
// Horizontal Scanning Laser Line
ctx.shadowBlur = 15;
ctx.shadowColor = `rgba(${rC}, ${gC}, ${bC}, 1)`;
ctx.fillStyle = `rgba(${rC}, ${gC}, ${bC}, 0.8)`;
ctx.fillRect(0, scanLineY - Math.max(2, height * 0.005), width, Math.max(4, height * 0.01));
ctx.shadowBlur = 0; // reset shadow
// Positioning & Scales
const cx = width / 2;
const cy = height / 2;
const rSize = Math.min(width, height) * 0.2;
const tick = rSize * 0.25;
// Target Reticle
ctx.strokeStyle = `rgba(${rC}, ${gC}, ${bC}, 0.9)`;
ctx.lineWidth = Math.max(2, Math.floor(width * 0.004));
ctx.beginPath();
// Top Left Bracket
ctx.moveTo(cx - rSize, cy - rSize + tick);
ctx.lineTo(cx - rSize, cy - rSize);
ctx.lineTo(cx - rSize + tick, cy - rSize);
// Top Right Bracket
ctx.moveTo(cx + rSize - tick, cy - rSize);
ctx.lineTo(cx + rSize, cy - rSize);
ctx.lineTo(cx + rSize, cy - rSize + tick);
// Bottom Left Bracket
ctx.moveTo(cx - rSize, cy + rSize - tick);
ctx.lineTo(cx - rSize, cy + rSize);
ctx.lineTo(cx - rSize + tick, cy + rSize);
// Bottom Right Bracket
ctx.moveTo(cx + rSize - tick, cy + rSize);
ctx.lineTo(cx + rSize, cy + rSize);
ctx.lineTo(cx + rSize, cy + rSize - tick);
// Inner Crosshair (Static)
const cTick = rSize * 0.15;
ctx.moveTo(cx - cTick, cy); ctx.lineTo(cx + cTick, cy);
ctx.moveTo(cx, cy - cTick); ctx.lineTo(cx, cy + cTick);
ctx.stroke();
// 3D Point cloud identifier nodes (randomly placed inside the reticle)
ctx.fillStyle = `rgba(${rC}, ${gC}, ${bC}, 0.8)`;
for(let p = 0; p < 12; p++) {
const rx = cx - rSize + (rSize * 0.2) + Math.random() * (rSize * 1.6);
const ry = cy - rSize + (rSize * 0.2) + Math.random() * (rSize * 1.6);
ctx.beginPath();
ctx.arc(rx, ry, Math.max(3, width * 0.003), 0, Math.PI * 2);
ctx.fill();
// tiny connection lines to the center to emphasize 3D mesh locking
ctx.beginPath();
ctx.moveTo(rx, ry);
ctx.lineTo(cx, cy);
ctx.lineWidth = 1;
ctx.strokeStyle = `rgba(${rC}, ${gC}, ${bC}, 0.2)`;
ctx.stroke();
}
// HUD Text Interface
const fontSize = Math.max(12, Math.floor(height * 0.025));
ctx.font = `bold ${fontSize}px "Courier New", Courier, monospace`;
ctx.fillStyle = `rgba(${rC}, ${gC}, ${bC}, 1)`;
ctx.shadowBlur = 5;
ctx.shadowColor = `rgba(${rC}, ${gC}, ${bC}, 0.8)`;
const padding = fontSize * 1.5;
// Top Left Information
ctx.textAlign = 'left';
ctx.fillText('SYS: 3D PRINTER IDENTIFIER v3.1', padding, padding);
ctx.fillText('MODE: SURFACE MESH GENERATION', padding, padding + fontSize * 1.5);
ctx.fillText(`PROG: ${scanProgress}% COMPLETE`, padding, padding + fontSize * 3);
// Top Right Telemetry
ctx.textAlign = 'right';
ctx.fillText('TARGET: 3D_ACQUIRED', width - padding, padding);
ctx.fillText(`PITCH: ${(Math.random() * 360 - 180).toFixed(2)}°`, width - padding, padding + fontSize * 1.5);
ctx.fillText(`YAW: ${(Math.random() * 360 - 180).toFixed(2)}°`, width - padding, padding + fontSize * 3);
ctx.fillText(`VOL: ${(800 + Math.random() * 400).toFixed(2)} cm³`, width - padding, padding + fontSize * 4.5);
// Bottom Annotations
ctx.textAlign = 'left';
ctx.fillText('POINT CLOUD DAT: EXTRACTING...', padding, height - padding - fontSize);
ctx.textAlign = 'right';
ctx.fillText('IDENTIFICATION: MATCH FOUND', width - padding, height - padding - fontSize);
} catch (e) {
// Fallback gracefully in case of Cross-Origin Image Data blocks
console.warn("Could not read image pixels natively. Simulating scanner overlay.", e);
let hex = String(scanColor).replace(/^#/, '');
if (hex.length === 3) hex = hex.split('').map(c => c + c).join('');
const rC = parseInt(hex.substring(0, 2), 16) || 0;
const gC = parseInt(hex.substring(2, 4), 16) || 255;
const bC = parseInt(hex.substring(4, 6), 16) || 204;
const scanLineY = Math.floor(height * (Math.max(0, Math.min(100, scanProgress)) / 100));
// Semi-transparent scan filter
ctx.fillStyle = `rgba(${rC}, ${gC}, ${bC}, 0.2)`;
ctx.fillRect(0, 0, width, scanLineY);
// Laser Line
ctx.fillStyle = `rgba(${rC}, ${gC}, ${bC}, 0.9)`;
ctx.fillRect(0, scanLineY - 2, width, 4);
}
return canvas;
}Apply Changes
