Question

我需要在bitmap中使用c＃保存byte[]，该怎么做？

Answer 1

此工作代码为

System.Drawing.Image originalImage = dpgraphic.image;// replace your image here i.e image bitmap
//Create empty bitmap image of original size
float width=0, height=0;
Bitmap tempBmp = new Bitmap((int)width, (int)height);
Graphics g = Graphics.FromImage(tempBmp);
//draw the original image on tempBmp
g.DrawImage(originalImage, 0, 0, width, height);
//dispose originalImage and Graphics so the file is now free
g.Dispose();
originalImage.Dispose();
using (MemoryStream ms = new MemoryStream())
{
    // Convert Image to byte[]
    tempBmp.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
    //dpgraphic.image.Save(ms, System.Drawing.Imaging.ImageFormat.Bmp);
    byte[] imageBytes = ms.ToArray();
}

Answer 2

从MSDN http://msdn.microsoft.com/en-us/library/system.drawing.imaging.bitmapdata.aspx查看此示例我希望您正在寻找此内容。

Answer 3

怎么样

阅读

YourByteArray = System.IO.File.ReadAllBytes( "YourGraphic.bmp" );

写出来

System.IO.File.WriteAllBytes( "SaveToFile.bmp", YourByteArray );

适合我

如何在byte [] c＃中保存位图？

3 个答案: