c# - C# 标题图片

Question

我正在为图像添加字幕，但是对于 M 和 W 等字母来说，边角太锐利了。

有圆角的方法吗？这是我目前的方法。自从我在 WPF 中使用它以来，它有很长的引用，我不希望它发生冲突。

public static System.Drawing.Image captionImage(System.Drawing.Image img, string text, string font, float fontSize, int left, int top)
{
    System.Drawing.FontFamily c;

    c = System.Drawing.FontFamily.Families.Where(x => x.Name.ToLower() == font.ToLower()).First();

    if (c != null)
    {
        using (System.Drawing.StringFormat sf = new System.Drawing.StringFormat())
        {
            sf.Alignment = System.Drawing.StringAlignment.Near;
            sf.LineAlignment = System.Drawing.StringAlignment.Near;

            using (System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(img))
            {
                using (System.Drawing.Drawing2D.GraphicsPath path = new System.Drawing.Drawing2D.GraphicsPath())
                {
                    path.AddString(text, c, 0, fontSize, new System.Drawing.Point(left, top), sf);

                    g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
                    g.DrawPath(new System.Drawing.Pen(System.Drawing.Color.Black, fontSize * 0.3f), path);
                    g.FillPath(System.Drawing.Brushes.White, path);
                }
            }
        }
    }

    return img;
}

Answer 1

毕竟我想通了。

我必须创建一个笔对象并将其线设置为圆形。

using (System.Drawing.Pen p = new System.Drawing.Pen(System.Drawing.Color.Black, fontSize * 0.3f))
{
    p.LineJoin = System.Drawing.Drawing2D.LineJoin.Round;
    g.DrawPath(p, path);
    g.FillPath(System.Drawing.Brushes.White, path);
}