在C#中保存图像文件

时间:2010-02-18 17:17:25

标签: c# .net image save

我们如何在C#中保存图像文件(jpg或png等类型)?

4 个答案:

答案 0 :(得分:22)

在c#us中使用这些参数的Image.Save方法(字符串Filename,ImageFormat)

http://msdn.microsoft.com/en-us/library/9t4syfhh.aspx

这就是你所需要的吗?

// Construct a bitmap from the button image resource.
Bitmap bmp1 = new Bitmap(typeof(Button), "Button.bmp");

// Save the image as a GIF.
bmp1.Save("c:\\button.gif", System.Drawing.Imaging.ImageFormat.Gif);

答案 1 :(得分:18)

Image bitmap = Image.FromFile("C:\\MyFile.bmp");
bitmap.Save("C:\\MyFile2.bmp");  

您应该能够使用Save Method中的Image Class,并且如上所示就可以了。保存方法有5种不同的选项或重载...

  //Saves this Image  to the specified file or stream.
  img.Save(filePath);

  //Saves this image to the specified stream in the specified format.
  img.Save(Stream, ImageFormat);

  //Saves this Image to the specified file in the specified format.
  img.Save(String, ImageFormat);

  //Saves this image to the specified stream, with the specified encoder and image encoder parameters.
  img.Save(Stream, ImageCodecInfo, EncoderParameters);

  //Saves this Image to the specified file, with the specified encoder and image-encoder parameters.
  img.Save(String, ImageCodecInfo, EncoderParameters);

答案 2 :(得分:0)

如果您需要比.Net Framework提供的更广泛的图像处理,请查看FreeImage项目

答案 3 :(得分:0)

            SaveFileDialog sv = new SaveFileDialog();
            sv.Filter = "Images|*.jpg ; *.png ; *.bmp";
            ImageFormat format = ImageFormat.Jpeg;

            if (sv.ShowDialog() == DialogResult.OK)
            {

                switch (sv.Filter )
                {
                    case ".jpg":

                        format = ImageFormat.Png;
                        break;

                    case ".bmp":

                        format = ImageFormat.Bmp;
                        break;
                }


                pictureBox.Image.Save(sv.FileName, format);
            }