js实现手写笔迹还原算法

实现手写笔迹还原算法的一种常见方法是使用贝塞尔曲线拟合。以下是一个简单的示例实现：

// 将手写笔迹转换为贝塞尔曲线
function convertToBezier(points) {
  const bezierPoints = [];
  
  for (let i = 0; i < points.length - 1; i++) {
    const startPoint = points[i];
    const endPoint = points[i + 1];
    
    const x1 = startPoint.x + (endPoint.x - startPoint.x) / 3;
    const y1 = startPoint.y + (endPoint.y - startPoint.y) / 3;
    
    const x2 = endPoint.x - (endPoint.x - startPoint.x) / 3;
    const y2 = endPoint.y - (endPoint.y - startPoint.y) / 3;
    
    bezierPoints.push({ x: startPoint.x, y: startPoint.y });
    bezierPoints.push({ x: x1, y: y1 });
    bezierPoints.push({ x: x2, y: y2 });
  }
  
  return bezierPoints;
}

// 绘制贝塞尔曲线
function drawBezier(ctx, points) {
  ctx.beginPath();
  ctx.moveTo(points[0].x, points[0].y);
  
  for (let i = 1; i < points.length; i += 3) {
    if (points[i + 2]) {
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