存图片 如何改变分辨率

[jlty7390]

Bitmap1.Save(ConfigurationManager.ConnectionStrings("imgPath").ToString + AearCode & ".jpeg", System.Drawing.Imaging.ImageFormat.Jpeg)

Bitmap1是自己画的

存完后分辨率是96*96 如何提高呢?

[wangnaisheng]

http://bbs.csdn.net/topics/110028928

[chengq_2528811947]

如何设置图片的像素值 protected void Page_Load(object sender, EventArgs e) { //设置图像像素值 try { int X =100, Y =100, Width = 80, Height = 80; Bitmap target = new Bitmap(Width, Height); Bitmap source = new Bitmap(Server.MapPath("test0.jpg")); for (int i = X; i < X + Width; i++) { for (int j = Y; j < Y + Height; j++) { Color color = source.GetPixel(i, j); target.SetPixel(i - X, j - Y, color); } } System.IO.MemoryStream ms = new System.IO.MemoryStream(); target.Save(ms, System.Drawing.Imaging.ImageFormat.Gif); Response.ClearContent(); Response.ContentType = "image/Gif"; Response.BinaryWrite(ms.ToArray()); } catch{} }

[以专业开发人员为伍]

不可能“提高”。 这样的图片，重新再保存它已经没有意义。你在显示时再去考虑改变尺寸就行了。