我需要将传递给函数的图像作为BitmapFrame的数组旋转。成品需要保存为BitmapFrame,所以我可以将它发送到我的Export-Image函数。帮帮我?我需要旋转图像
[Cmdlet(VerbsData.ConvertTo, "Rotate")]
public class RotateCmdlet : PSCmdlet
{
private BitmapFrame[] bFrame, outFrame;
private BitmapSource src;
private double pixelsize;
private int degrees;
private byte[] pixels, outPixels;
[Parameter(ValueFromPipeline = true,
ValueFromPipelineByPropertyName = true), ValidateNotNullOrEmpty]
public BitmapFrame[] Bitmap
{
get
{
return bFrame;
}
set
{
bFrame = value;
}
}
[Parameter(Position = 0), ValidateNotNullOrEmpty]
public int Degrees
{
get
{
return degrees;
}
set
{
degrees = value;
}
}
protected override void ProcessRecord()
{
base.ProcessRecord();
Console.Write("Rotating the image {0} degrees...\n\n", degrees);
outFrame = new BitmapFrame[bFrame.Length];
for (int c = 0; c < bFrame.Length; c++)
{
Image image;
pixelsize = bFrame[c].PixelWidth * bFrame[c].PixelHeight;
pixels = new byte[(int)pixelsize];
outPixels = new byte[(int)pixelsize];
bFrame[c].CopyPixels(pixels, (int)(bFrame[c].Width * (bFrame[c].Format.BitsPerPixel/8.0)), 0);
Stream strm = new MemoryStream(pixels);
image = Image.FromStream(strm);
var newBitmap = new Bitmap((int)bFrame[c].PixelWidth, (int)bFrame[c].PixelHeight);
var graphics = Graphics.FromImage(newBitmap);
graphics.TranslateTransform((float)bFrame[c].PixelWidth/2, (float)bFrame[c].PixelHeight/2);
graphics.RotateTransform(degrees);
graphics.TranslateTransform(-(float)bFrame[c].PixelWidth/2, -(float)bFrame[c].PixelHeight/2);
graphics.DrawImage(image, new System.Drawing.Point(0, 0));
for (int i = 0; i < pixelsize; i++)
{
outPixels[i] = pixels[i];
}
src = BitmapSource.Create(bFrame[c].PixelWidth, bFrame[c].PixelHeight, bFrame[c].DpiX, bFrame[c].DpiY,
bFrame[c].Format, bFrame[c].Palette, outPixels, (int)(bFrame[c].Width * (bFrame[c].Format.BitsPerPixel/8)));
outFrame[c] = BitmapFrame.Create(src);
}
WriteObject(outFrame);
}
}
有点多信息会很好:)例如,你发布的代码有什么问题? – cwap 2009-08-17 20:14:21
此外(与您的问题无关),您想对您在此处使用的所有内容(如Stream,Bitmap和Graphics)调用Dispose()(或在using()块中使用它们)。 – MusiGenesis 2009-08-17 20:41:22
您或许可以在此处推导出有关dabonz413问题的更多信息:http://www.stackoverflow.com/questions/1190743/我还没有时间仔细阅读代码,几周后我就问了这个问题以前,所以我不完全清新。但如果我最终找到更多有用的(或上下文)信息,我会在这里再次发帖。 – Giffyguy 2009-08-17 20:58:39