最近有个需求是将生成的邀请码与背景图片合成成为新的图片,查找了一些资料后又整理了一遍,查到了一个群主的帖子,虽然代码略微有点问题,地址是:https://www.cnblogs.com/stulzq/p/6137715.html,下面上修改后的代码,有两个资源图片,是自己做的,第一个是背景图片(500600),第二个是前景图片(200200)。
public ActionResult Index()
{
//生成邀请码图片 字符间距 带空格比较简单
//Image img = CreateImage("1 2 3 4 5 6", true, 12);
//修改照片分辨率大小
//img = ResizeImage(img, 200, 100);
//保存邀请码图片
//img.Save("D:/3.jpg");
//开始合并图片
Image ibpic = Image.FromFile("D:/1.jpg");
Image inpic = Image.FromFile("D:/2.jpg");
Bitmap bmp = CombinImage(ibpic, inpic, 0, -100);
bmp.Save("D:/4.jpg", ImageFormat.Jpeg);
return View();
}
///
/// 生成文字图片
///
///
///
///
public Image CreateImage(string text, bool isBold, int fontSize)
{
int wid = 400;
int high = 200;
Font font;
if (isBold)
{
font = new Font("Arial", fontSize, FontStyle.Bold);
}
else
{
font = new Font("Arial", fontSize, FontStyle.Regular);
}
//绘笔颜色
SolidBrush brush = new SolidBrush(Color.Black);
StringFormat format = new StringFormat(StringFormatFlags.NoClip);
format.Alignment = StringAlignment.Center;
format.LineAlignment = StringAlignment.Center;
Bitmap image = new Bitmap(wid, high);
Graphics g = Graphics.FromImage(image);
g.Clear(Color.White);//透明
RectangleF rect = new RectangleF(0, 0, wid, high);
//绘制图片
g.DrawString(text, font, brush, rect, format);
//释放对象
g.Dispose();
return image;
}
///
/// 合并图片
///
///
///
///
public static Bitmap CombinImage(Image imgBack, Image img, int xDeviation = 0, int yDeviation = 0)
{
Bitmap bmp = new Bitmap(imgBack.Width, imgBack.Height);
Graphics g = Graphics.FromImage(bmp);
g.Clear(Color.White);
g.DrawImage(imgBack, 0, 0, imgBack.Width, imgBack.Height);
//白色边框
g.FillRectangle(System.Drawing.Brushes.White, imgBack.Width / 2 - img.Width / 2 + xDeviation - 1, imgBack.Height / 2 - img.Height / 2 + yDeviation - 1, img.Width + 2, img.Height + 2);
//填充图片
g.DrawImage(img, imgBack.Width / 2 - img.Width / 2 + xDeviation, imgBack.Height / 2 - img.Height / 2 + yDeviation, img.Width, img.Height);
GC.Collect();
return bmp;
}
///
/// Resize图片
///
/// 原始Bitmap
/// 新的宽度
/// 新的高度
/// 处理以后的图片
public static Image ResizeImage(Image bmp, int newW, int newH)
{
try
{
Image b = new Bitmap(newW, newH);
Graphics g = Graphics.FromImage(b);
// 插值算法的质量
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
g.DrawImage(bmp, new Rectangle(0, 0, newW, newH), new Rectangle(0, 0, bmp.Width, bmp.Height),
GraphicsUnit.Pixel);
g.Dispose();
return b;
}
catch
{
return null;
}
}
原文:
https://www.cnblogs.com/wangbg/p/8376293.html