openFileDialogue位图C＃ [英] openFileDialogue Bitmaps C#

问题描述

您好。我想在C＃中进行一些图像处理，并且在对它们应用滤镜之前需要对齐两个图像。我将通过在一个小矩形截面中的固定点扫描图像来尝试这样做，我相信这需要使用Bitmap类。此部分有大量的白色像素，因此我想在此区域中取一个平均像素值来查找y轴的偏移，因为图像上有一个大的白色水平条。两个图像中的x轴相同。我想设置一些具有不同移位值的测试图像，从小到大，正面和负面，所以我可以搜索最小值。这将需要图像上的滚动条以少量移动它们。我是C＃的新手，也是低级程序员。我一直试图使用以下代码获取pictureBox1中的图像。

Hi. I would like to do some image processing in C# and need to align two images before applying a filter to them. I will attempt to do this by scanning the images at a fixed point in a small rectangular section, which I believe makes it necessary to use the Bitmap class. This section has a large amount of white pixels so I would like to take an average pixel value in this area to find the shift in the y-axis, as there is a large white horizontal bar going across the images. The x-axis will be the same in both images. I would like to setup a few test images with different shift values, from small to large, positive and negative, so I can search for the minimum value . This will require a scroll bar on the images to move them in small amounts. I am totally new to C#, and low level programmer. I have been trying to get the image in pictureBox1 with the following code.

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing.Imaging; 
using System.Drawing; 
using System.Linq; 
using System.Text; 
using System.Windows.Forms;

namespace imageAlign

{ public partial class Form1 : Form

{
    public Form1()

    {
        InitializeComponent();
    }
    private void button1_Click(object sender, EventArgs e)
    {
        Bitmap myImage = (Bitmap)pictureBox1.Image;
        OpenFileDialog ofd = new OpenFileDialog();

        if (ofd.ShowDialog() == System.Windows.Forms.DialogResult.OK) ;
        {
            pictureBox1.Image = Image.FromFile();


           // this.pictureBox1.Image = myImage;
        }
    }
}

}

我离开了Image.FromFile（）;当我单击表单上的按钮时，我希望选择图像时没有传递任何内容。目前，我只有一个按钮和图片框。



谢谢

I have left the Image.FromFile(); with nothing passed as I wish to choose the images when I click the button on the form. Currently, I only have one button and picture box.

Thanks

推荐答案

检查以下代码，

Hi,
Check the below code,

private void button1_Click(object sender, EventArgs e)
        {
            Bitmap myImage = (Bitmap)pictureBox1.Image;
            OpenFileDialog ofd = new OpenFileDialog();

            if (ofd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
            {
                pictureBox1.Image = Image.FromFile(ofd.FileName);


                // this.pictureBox1.Image = myImage;
            }
        }

最好的问候

Muthuraja

Best Regards
Muthuraja

尝试：

Try:

Bitmap myImage = (Bitmap)pictureBox1.Image;
OpenFileDialog ofd = new OpenFileDialog();
if (ofd.ShowDialog() == System.Windows.Forms.DialogResult.OK) ;
{
    pictureBox1.Image = Image.FromFile(ofd.FileName);
}

哦！我想我明白了。有效。

所以，我只是没有把任何东西传递到pictureBox。我现在正在传递ofd文件。

非常感谢：）

oh! I think I see. It worked.
So, I just wasn''t passing anything into the pictureBox. I am now passing the ofd file.
Thanks a lot :)

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