我有一个要求,其中我需要使用C#.Net将两个不同的png / jpeg图像合并为单个图像。将在源图像上定义特定位置,其中我需要插入另一图像。有人可以建议一些链接吗?
答案 0 :(得分:35)
此方法将两个图像合并在另一个的顶部,您可以修改代码以满足您的需求:
public static Bitmap MergeTwoImages(Image firstImage, Image secondImage)
{
if (firstImage == null)
{
throw new ArgumentNullException("firstImage");
}
if (secondImage == null)
{
throw new ArgumentNullException("secondImage");
}
int outputImageWidth = firstImage.Width > secondImage.Width ? firstImage.Width : secondImage.Width;
int outputImageHeight = firstImage.Height + secondImage.Height + 1;
Bitmap outputImage = new Bitmap(outputImageWidth, outputImageHeight, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
using (Graphics graphics = Graphics.FromImage(outputImage))
{
graphics.DrawImage(firstImage, new Rectangle(new Point(), firstImage.Size),
new Rectangle(new Point(), firstImage.Size), GraphicsUnit.Pixel);
graphics.DrawImage(secondImage, new Rectangle(new Point(0, firstImage.Height + 1), secondImage.Size),
new Rectangle(new Point(), secondImage.Size), GraphicsUnit.Pixel);
}
return outputImage;
}
答案 1 :(得分:12)
毕竟,我发现了一种新的更简单的方法试试这个..
它可以将多张照片合并在一起:
public static System.Drawing.Bitmap CombineBitmap(string[] files)
{
//read all images into memory
List<System.Drawing.Bitmap> images = new List<System.Drawing.Bitmap>();
System.Drawing.Bitmap finalImage = null;
try
{
int width = 0;
int height = 0;
foreach (string image in files)
{
//create a Bitmap from the file and add it to the list
System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap(image);
//update the size of the final bitmap
width += bitmap.Width;
height = bitmap.Height > height ? bitmap.Height : height;
images.Add(bitmap);
}
//create a bitmap to hold the combined image
finalImage = new System.Drawing.Bitmap(width, height);
//get a graphics object from the image so we can draw on it
using (System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(finalImage))
{
//set background color
g.Clear(System.Drawing.Color.Black);
//go through each image and draw it on the final image
int offset = 0;
foreach (System.Drawing.Bitmap image in images)
{
g.DrawImage(image,
new System.Drawing.Rectangle(offset, 0, image.Width, image.Height));
offset += image.Width;
}
}
return finalImage;
}
catch (Exception)
{
if (finalImage != null)
finalImage.Dispose();
//throw ex;
throw;
}
finally
{
//clean up memory
foreach (System.Drawing.Bitmap image in images)
{
image.Dispose();
}
}
}
答案 2 :(得分:7)
免责声明:我在Atalasoft工作
我们的DotImage Photo SDK(免费)可以做到这一点。
打开图片
AtalaImage botImage = new AtalaImage("bottomImage.png");
AtalaImage topImage = new AtalaImage("topImage.png");
将一个叠加在另一个
之上 Point pos = new Point(0,0); // or whatever you need
OverlayCommand cmd = new OverlayCommand(topImage, pos);
ImageResults res = cmd.Apply(botImage);
如果您需要将生成的图片放大到不同的尺寸,请查看CanvasCommand
。您还可以创建所需大小的AtalaImage,然后将每个图像叠加到其上。
保存
botImage.Save("newImage.png", new PngEncoder(), null);
答案 3 :(得分:5)
String jpg1 = @"c:\images.jpeg";
String jpg2 = @"c:\images2.jpeg";
String jpg3 = @"c:\image3.jpg";
Image img1 = Image.FromFile(jpg1);
Image img2 = Image.FromFile(jpg2);
int width = img1.Width + img2.Width;
int height = Math.Max(img1.Height, img2.Height);
Bitmap img3 = new Bitmap(width, height);
Graphics g = Graphics.FromImage(img3);
g.Clear(Color.Black);
g.DrawImage(img1, new Point(0, 0));
g.DrawImage(img2, new Point(img1.Width, 0));
g.Dispose();
img1.Dispose();
img2.Dispose();
img3.Save(jpg3, System.Drawing.Imaging.ImageFormat.Jpeg);
img3.Dispose();
答案 4 :(得分:0)
我在http://bookingbillboard.com/API有相应的api。该API将合并2张图片。 1张照片是您的图像/设计/海报,其他图像是广告牌的照片。通过使用API,您可以在广告牌的照片中看到您的设计/图像/海报的样子
答案 5 :(得分:0)
private void Merge _Click(object sender, EventArgs e)
{
}
DirectoryInfo directory=new DirectoryInfo("D:\\Images");
if(directory!=null)
{
FileInfo[]files = directory.GetFiles();
MergeImages(Image);
}
private void MergeImages(FileInfo[] Image)
{
//change the location to store the final image.
string FImage= @"D:\\Images\\FImage.jpg";
List imageHeights = new List();
int nIndex = 0;
int width = 0;
foreach (FileInfo file in files)
{
Image img = Image.FromFile(file.FullName);
imageHeights.Add(img.Height);
width += img.Width;
img.Dispose();
}
imageHeights.Sort();
int height = imageHeights[imageHeights.Count - 1];
Bitmap NewImg = new Bitmap(width, height);
Graphics Gr= Graphics.FromImage(NewImg);
Gr.Clear(SystemColors.AppWorkspace);
foreach (FileInfo file in files)
{
Image img = Image.FromFile(file.FullName);
if (nIndex == 0)
{
Gr.DrawImage(img, new Point(0, 0));
nIndex++;
width = img.Width;
}
else
{
Gr.DrawImage(img, new Point(width, 0));
width += img.Width;
}
img.Dispose();
}
Gr.Dispose();
NewImg .Save(FImage, System.Drawing.Imaging.ImageFormat.Jpeg);
NewImg .Dispose();
imageLocation.Image = Image.FromFile(FImage);
}