合并图像的问题c＃ [英] Problem with merging images c#

问题描述

我正在尝试使用Windows表单aplication c＃合并多个图像。



这里是我的代码：

I am trying to merge multiple images using Windows form aplication c#.

here is my code:

private void btn_save_image_Click(object sender, EventArgs e)
       {
           Graphics g = Graphics.FromImage(loaded_image); // "loaded_image" is the initial image

           g.DrawImage(pb.Image, pb.Location); // Drawing "pb" in initial image 

           SaveFileDialog sf = new SaveFileDialog();
           if (sf.ShowDialog() == DialogResult.OK)
           {
               loaded_image.Save(sf.FileName + ".jpg"); // saving the image

           }
       }

问题是：



保存图像时图像pb不在我保留初始图像的地方。



示例：我的应用程序我在狗头上添加了一个帽子的图像。当我保存并打开.jpg文件时，帽子的图像不在狗的头上 - 它在狗的耳朵里。



我该如何解决？

The problem is:

When the image is saved the image "pb" isn't in the place where i kept it in initial image.

Example: I my application I added a image of a cap over a dog's head. When i save it and open the .jpg file then, the image of cap isn't in dog's head- it's in dog's ear.

How should i fix it ?

推荐答案

我假设您正在屏幕上移动图像屏幕上有一个单独的图像？



你需要开始查看位置属性，并且它是关于 - 以及正在进行的任何缩放显示的图像。



猜测，您的loaded_image位于PictureBox中，并且正在缩放以适合该框：所以它看起来像封面适合但实际上该位置是相对于显示的缩放图像，而不是您稍后将其绘制的原始尺寸图像。

I assume that you are moving an image on screen over a separate image on screen?

You need to start looking at the Location property, and whit it is in respect of - and also at any scaling which is being done to the displayed image(s).

At a guess, your "loaded_image" is in a PictureBox, and is being scaled to fit the box: so it looks like the "cap fits" but in reality the location is relative to the scaled image on display and not the original-sized image you are drawing it onto later.

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