zoukankan      html  css  js  c++  java
  • .net c# gif动画如何添加图片水印

    public static Bitmap WaterMarkWithText(System.Drawing.Bitmap origialGif, string
    text,string filePath)
    {
    //用于存放桢
    List<Frame> frames = new
    List<Frame>();
    //如果不是gif文件,直接返回原图像
    if (origialGif.RawFormat.Guid
    != System.Drawing.Imaging.ImageFormat.Gif.Guid)
    {
    return origialGif;

    }
    //如果该图像是gif文件
    foreach (Guid guid in
    origialGif.FrameDimensionsList)
    {
    System.Drawing.Imaging.FrameDimension
    frameDimension = new System.Drawing.Imaging.FrameDimension(guid);
    int
    frameCount = origialGif.GetFrameCount(frameDimension);
    for (int i = 0; i
    < frameCount; i++)
    {
    if (origialGif.SelectActiveFrame(frameDimension,
    i) == 0)
    {
    int delay =
    Convert.ToInt32(origialGif.GetPropertyItem(20736).Value.GetValue(i));
    Image
    img = Image.FromHbitmap(origialGif.GetHbitmap());
    Font font = new Font(new
    FontFamily("宋体"), 35.0f,FontStyle.Bold);
    Graphics g =
    Graphics.FromImage(img);
    g.DrawString(text, font, Brushes.BlanchedAlmond,
    new PointF(10.0f, 10.0f));
    Frame frame = new Frame(img, delay);

    frames.Add(frame);
    }
    }
    Gif.Components.AnimatedGifEncoder gif =
    new Gif.Components.AnimatedGifEncoder();
    gif.Start(filePath);

    gif.SetDelay(100);
    gif.SetRepeat(0);
    for (int i = 0; i <
    frames.Count; i++)
    {
    gif.AddFrame(frames[i].Image);
    }

    gif.Finish();
    try
    {
    Bitmap gifImg =
    (Bitmap)Bitmap.FromFile(filePath);
    return gifImg;
    }
    catch
    {

    return origialGif;
    }
    }
    return origialGif;
    }

  • 相关阅读:
    csuoj 1391: Boiling Vegetables
    csuoj 1392: Number Trick
    nyist 78 圈水池
    1393: Robert Hood 旋转卡壳 凸包
    模板 旋转卡壳 凸包
    模板 凸包 旋转卡壳
    ASP.NET Web API2返回值处理流程
    DependencyInjection源码解读之ServiceProvider
    深入研究EF Core AddDbContext 引起的内存泄露的原因
    私有云方案——利用阿里云云解析实现DDNS
  • 原文地址:https://www.cnblogs.com/harry0914/p/2956008.html
Copyright © 2011-2022 走看看