将两个图像合并为一个新图像

本文关键字：图像 一个 新图像 两个 合并 | 更新日期: 2023-09-27 18:06:40

我有两个不同尺寸的JPEG文件:

Image1 (Width1 Height1)

Image2 (Width2 Height2)

我想创建Image3 (Width3, Height3)， Image1在左边，Image2在右边。

将两个图像合并为一个新图像

这样做会给你一个新图像，两个原始图像并排在一起。

Bitmap bitmap = new Bitmap(image1.Width + image2.Width, Math.Max(image1.Height, image2.Height));
using (Graphics g = Graphics.FromImage(bitmap))
{
    g.DrawImage(image1, 0, 0);
    g.DrawImage(image2, image1.Width, 0);
}

我也遇到过类似的问题。使用此函数，您可以将多个位图合并为单个图像

    private Bitmap MergeImages(IEnumerable<Bitmap> images)
    {
        var enumerable = images as IList<Bitmap> ?? images.ToList();
        var width = 0;
        var height = 0;
        foreach (var image in enumerable)
        {
            width += image.Width;
            height = image.Height > height
                ? image.Height
                : height;
        }
        var bitmap = new Bitmap(width, height);
        using (var g = Graphics.FromImage(bitmap))
        {
            var localWidth = 0;
            foreach (var image in enumerable)
            {
                g.DrawImage(image, localWidth, 0);
                localWidth += image.Width;
            }
        }
        return bitmap;
    }

你可以试试

库你需要使用

using System.Drawing; using System.Drawing.Imaging; //controller 

public ActionResult Image()     
    {
        var bitmap = GetBitmap(); // The method that returns List<Bitmap>
        var width = 0;
        var height = 0;
        foreach (var image in bitmap)
        {
            width += image.Width;
            height = image.Height > height
                ? image.Height
                : height;
        }
        var bitmap2 = new Bitmap(width, height);
        var g = Graphics.FromImage(bitmap2);
        var localWidth = 0;
        foreach (var image in bitmap)
        {
            g.DrawImage(image, localWidth, 0);
            localWidth += image.Width;
        }
        var ms = new MemoryStream();
        bitmap2.Save(ms, ImageFormat.Png);
         var   result = ms.ToArray();
         //string base64String = Convert.ToBase64String(result); 
         return File(result, "image/jpeg"); //Return as file result
        //return base64String;
    }
//this method returns List<Bitmap>
public List<Bitmap> GetBitmap()
    {
        var lstbitmap = new List<Bitmap>();
        var bitmap = new Bitmap(@"E:'My project'ProjectImage'ProjectImage'BmImage'1525244892128.JPEG");
        var bitmap2 = new Bitmap(@"E:'My project'ProjectImage'ProjectImage'BmImage'1525244892204.JPEG");
        var bitmap3 = new Bitmap(@"E:'My project'ProjectImage'ProjectImage'BmImage'3.jpg");
        lstbitmap.Add(bitmap);
        lstbitmap.Add(bitmap2);
        lstbitmap.Add(bitmap3);
        return lstbitmap;
    }

祝你好运!

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