合并两个图片成一个图片的代码

合并两个图片成一个图片的代码

代码实现：

enum ImageMergeOrientation

{

Horizontal,

Vertical

}

private void CombineImages(FileInfo[] files, string toPath, ImageMergeOrientation mergeType = ImageMergeOrientation.Vertical)

{

//change the location to store the final image.

// URL：http://www.bianceng.cn/Programming/csharp/201410/45751.htm

var finalImage = toPath;

var imgs = files.Select(f => Image.FromFile(f.FullName));

var finalWidth = mergeType == ImageMergeOrientation.Horizontal ?
imgs.Sum(img => img.Width) :
imgs.Max(img => img.Width);

var finalHeight = mergeType == ImageMergeOrientation.Vertical ?
imgs.Sum(img => img.Height) :
imgs.Max(img => img.Height);

var finalImg = new Bitmap(finalWidth, finalHeight);
Graphics g = Graphics.FromImage(finalImg);
g.Clear(SystemColors.AppWorkspace);

var width = finalWidth;
var height = finalHeight;
var nIndex = 0;
foreach (FileInfo file in files)
{
Image img = Image.FromFile(file.FullName);
if (nIndex == 0)
{
g.DrawImage(img, new Point(0, 0));
nIndex++;
width = img.Width;
height = img.Height;
}
else
{
switch (mergeType)
{
case ImageMergeOrientation.Horizontal:
g.DrawImage(img, new Point(width, 0));
width += img.Width;
break;
case ImageMergeOrientation.Vertical:
g.DrawImage(img, new Point(0, height));
height += img.Height;
break;
default:
throw new ArgumentOutOfRangeException("mergeType");
}
}
img.Dispose();
}
g.Dispose();
finalImg.Save(finalImage, System.Drawing.Imaging.ImageFormat.Tiff);
finalImg.Dispose();
}

代码说明：

根据参数进行横向或纵向合并图片

如果为横向，图片高度为最高的那张；如果纵向则宽度为最宽的那张

UT 代码：

[TestMethod]

public void Combine_Multiple_SampleImages_IntoOne()

{

const string folderPath = “C:\Users\Public\Pictures\Sample Pictures”;

var images = new DirectoryInfo(folderPath).GetFiles(“*.jpg”, SearchOption.TopDirectoryOnly);

CombineImages(images, "C:/FinalImage_H.tiff");
CombineImages(images, "C:/FinalImage_V.tiff", ImageMergeOrientation.Vertical);
}

VB代码

Imports System.Drawing

Module Module1

Sub Main()

Dim img As New List(Of Image)

img.Add(Image.FromFile("D:\Old\_old\D\5265847638_525279bf46[1].jpg"))
img.Add(Image.FromFile("D:\Old\_old\D\5265847638_525279bf46[1].jpg"))
img.Add(Image.FromFile("D:\Old\_old\D\5265847638_525279bf46[1].jpg"))

Dim w = img(0).Width
Dim h = img(0).Height

Dim i As New Bitmap(w, h * img.Count)

Dim g As Graphics = Graphics.FromImage(i)

For k = 0 To img.Count - 1

g.DrawImage(img(k), 0, k * h, w, h)

Next

i.Save("D:\Old\_old\D\a.jpg", Imaging.ImageFormat.Jpeg)

g.Dispose()

End Sub

End Module

Java代码

import java.awt.Graphics2D;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.FileInputStream;

import java.io.IOException;

import java.io.InputStream;

import javax.imageio.ImageIO;

public class DrawImage {

public static boolean Merge(BufferedImage image1, BufferedImage image2,

int posw, int posh,String path) {

//合并两个图像

int w1 = image1.getWidth();

int h1 = image1.getHeight();

int w2 = image2.getWidth();

int h2 = image2.getHeight();

BufferedImage imageSaved = new BufferedImage(w1, h1,BufferedImage.TYPE_INT_ARGB);

Graphics2D g2d = imageSaved.createGraphics();

g2d.drawImage(image1, null, 0, 0);

for (int i = 0; i < w2; i++) {

for (int j = 0; j < h2; j++) {

int _rgb1 = image1.getRGB(i + posw, j + posh);

int _rgb2 = image2.getRGB(i, j);

if (_rgb1 != _rgb2) {

_rgb2 = _rgb1 & _rgb2;

}

imageSaved.setRGB(i + posw, j + posh, _rgb2);

}

}

boolean b = false;

try {

File file = new File(path);

b = ImageIO.write(imageSaved, “jpg”, file);

} catch (IOException ie) {

ie.printStackTrace();

}

return b;

}

public static void main(String[] args) throws Exception {

String p = “f:/pp/img_1.jpeg”;

DrawImage di = new DrawImage();

InputStream imagein1 = new FileInputStream(p);

BufferedImage image1 = ImageIO.read(imagein1);

int posw = 50,posh = 100;

InputStream imagein2 = new FileInputStream(“f:/pp/1.jpg”);

BufferedImage image2 = ImageIO.read(imagein2);

di.Merge(image1, image2, posw, posh,p);

//System.out.println(“ok”);

}

}

C# code 合并图片的功能

string path = Server.MapPath(“~/temp/”);

string imgFilePath1 = path + “123456ASDFG.JPG”;

string imgFilePath2 = path + “aaaaaaaaaaa.JPG”;

if (!File.Exists(imgFilePath1))

File.Create(imgFilePath1);

System.Drawing.Image img1 = System.Drawing.Image.FromFile(imgFilePath1);

System.Drawing.Image img2 = System.Drawing.Image.FromFile(imgFilePath2);

Bitmap newImg = new Bitmap((img1.Width > img2.Width) ? img1.Width : img2.Width, img1.Height + img2.Height);

Graphics g = Graphics.FromImage(newImg);

g.Clear(Color.Blue);

g.DrawImageUnscaled(img1, 0, 0);

g.DrawImageUnscaled(img2,0, img1.Height);

img1.Dispose();

newImg.Save(imgFilePath1);
g.Dispose();

直接调用控制台命令

1

2

3

4

Process p = new Process();

p.StartInfo.FileName =”cmd.exe”;

p.StartInfo.Arguments = string.Format(“copy /b \”{0}\”+ \”{1}\” \”{2}\”“,file1,file2,dest);//file1,file2是图片路径，dest是保存路径

p.Start();

///

/// 图片裁剪，生成新图，保存在同一目录下,名字加_new，格式1.png 新图1_new.png

///

/// 要修改图片完整路径

/// 修改起点x坐标

/// 修改起点y坐标

/// 新图宽度

/// 新图高度

public static void caijianpic(String picPath,int x,int y,int width,int height)

{

//图片路径

String oldPath = picPath;

//新图片路径

String newPath = System.IO.Path.GetExtension(oldPath);

//计算新的文件名，在旧文件名后加_new

newPath = oldPath.Substring(0, oldPath.Length - newPath.Length) + “_new” + newPath;

//定义截取矩形

System.Drawing.Rectangle cropArea = new System.Drawing.Rectangle(x, y, width, height);

//要截取的区域大小

//加载图片

System.Drawing.Image img = System.Drawing.Image.FromStream(new System.IO.MemoryStream(System.IO.File.ReadAllBytes(oldPath)));

//判断超出的位置否

if ((img.Width < x + width) || img.Height < y + height)

{

MessageBox.Show(“裁剪尺寸超出原有尺寸！”);

img.Dispose();

return;

}

//定义Bitmap对象

System.Drawing.Bitmap bmpImage = new System.Drawing.Bitmap(img);

//进行裁剪

System.Drawing.Bitmap bmpCrop = bmpImage.Clone(cropArea, bmpImage.PixelFormat);

//保存成新文件

bmpCrop.Save(newPath);

//释放对象

img.Dispose(); bmpCrop.Dispose();

}

/// <summary>
/// 调用此函数后使此两种图片合并，类似相册，有个
/// 背景图，中间贴自己的目标图片
/// </summary>
/// <param name="sourceImg">粘贴的源图片</param>
/// <param name="destImg">粘贴的目标图片</param>
public static Image CombinImage(string sourceImg, string destImg)
{
Image imgBack = System.Drawing.Image.FromFile(sourceImg); //相框图片
Image img = System.Drawing.Image.FromFile(destImg); //照片图片
//从指定的System.Drawing.Image创建新的System.Drawing.Graphics
Graphics g = Graphics.FromImage(imgBack);
//g.DrawImage(imgBack, 0, 0, 148, 124); // g.DrawImage(imgBack, 0, 0, 相框宽, 相框高);
g.FillRectangle(System.Drawing.Brushes.Black, -50, -50, (int)212, ((int)203));//相片四周刷一层黑色边框，这里没有，需要调尺寸
//g.DrawImage(img, 照片与相框的左边距, 照片与相框的上边距, 照片宽, 照片高);
g.DrawImage(img, -50, -50, 212, 203);
GC.Collect();
string saveImagePath ="D:/测试文件夹/sss.png";
//save new image to file system.
imgBack.Save(saveImagePath, ImageFormat.Png);
return imgBack;
}