F/IO/IMG.cs

这里只显示每个文件的开头 60 行。登录后可以解锁完整代码。

微信扫码关注公众号，代码整理好后第一时间通知你。

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Text;

namespace F.IO
{
    /// <summary>
    /// 对图片操作
    /// </summary>
    public class IMG
    {
        /// <summary>
        /// 在图片上增加文字水印
        /// </summary>
        /// <param name="Path">原服务器图片路径</param>
        /// <param name="Path_sy">生成的带文字水印的图片路径</param>
        /// <param name="addText">水印文字</param>
        public static void AddWater(string Path, string Path_sy, string addText)
        {
            System.Drawing.Image image = System.Drawing.Image.FromFile(Path);
            System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(image);
            g.DrawImage(image, 0, 0, image.Width, image.Height);
            System.Drawing.Font f = new System.Drawing.Font("Verdana", 60);
            System.Drawing.Brush b = new System.Drawing.SolidBrush(System.Drawing.Color.Green);

            g.DrawString(addText, f, b, 35, 35);
            g.Dispose();

            image.Save(Path_sy);
            image.Dispose();
        }

        /// <summary>
        /// 加图片水印  例子：  AddImageSignPic("uploadfile/2342342.jpg", "uploadfile/img/2342342.jpg", "uploadfile/2342342.png", 5, 50, 3);
        /// </summary>
        /// <param name="Path">原服务器图片路径</param>
        /// <param name="filename">文件名路径</param>
        /// <param name="watermarkFilename">水印文件名</param>
        /// <param name="watermarkStatus">图片水印位置:0=不使用 1=左上 2=中上 3=右上 4=左中 5中中，6 中右，7左下，8中下 9=右下</param>
        /// <param name="quality">是否是高质量图片 取值范围0--100</param> 
        /// <param name="watermarkTransparency">图片水印透明度 取值范围1--10 (10为不透明)</param>
        public static void AddImageSignPic(string Path, string filename, string watermarkFilename, int watermarkStatus, int quality, int watermarkTransparency)
        {
            System.Drawing.Image img = System.Drawing.Image.FromFile(Path);
            System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(img);

            //设置高质量插值法
            //g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
            //设置高质量,低速度呈现平滑程度
            //g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
            System.Drawing.Image watermark = new System.Drawing.Bitmap(watermarkFilename);

            if (watermark.Height >= img.Height || watermark.Width >= img.Width)
            {
                return;
            }

            System.Drawing.Imaging.ImageAttributes imageAttributes = new System.Drawing.Imaging.ImageAttributes();