有没有一种方法使用GPU（显卡）调整的形象是消耗品通过.NET应用程序？

Is there a way to resize an image using GPU (graphic card) that is consumable through a .NET application?

我要寻找一个非常高性能的​​方式来调整图像，并听说GPU能比CPU要快得多（使用C＃GDI +）。是否有使用GPU来调整，我可以消耗.NET图像称为实现或样品code？

I am looking for an extremely performant way to resize images and have heard that the GPU could do it much quicker than CPU (GDI+ using C#). Are there known implementations or sample code using the GPU to resize images that I could consume in .NET?

推荐答案

你有没有想过使用XNA来调整图片大小？ 在这里你可以找到如何使用XNA来的图像保存为PNG / JPEG到一个MemoryStream和以后重新使用位图对象：

Have you thought about using XNA to resize your images? Here you can find out how to use XNA to save image as a png/jpeg to a MemoryStream and later reuse it a Bitmap object:

编辑：我会后你该怎样来使用XNA这里的一个例子（从上面的链接采取的）

I will post an example here (taken from the link above) on how you can possibly use XNA.

public static Image Texture2Image(Texture2D texture)
{
    Image img;
    using (MemoryStream MS = new MemoryStream())
    {
        texture.SaveAsPng(MS, texture.Width, texture.Height);
        //Go To the  beginning of the stream.
        MS.Seek(0, SeekOrigin.Begin);
        //Create the image based on the stream.
        img = Bitmap.FromStream(MS);
    }
    return img;
 }

我也发现了今天，你可以OpenCV的使用GPU /多核CPU。例如，您可以选择使用.NET包装，如 Emgu 并与使用它的Image类操纵你的照片并返回一个.NET Bitmap类：

I also found out today that you can OpenCV to use GPU/multicore CPUs. You can for example choose to use a .NET wrapper such as Emgu and and use its Image class to manipulate with your picture and return a .NET Bitmap class:

public static Bitmap ResizeBitmap(Bitmap sourceBM, int width, int height)
{
    // Initialize Emgu Image object
    Image<Bgr, Byte> img = new Image<Bgr, Byte>(sourceBM); 

    // Resize using liniear interpolation
    img.Resize(width, height, INTER.CV_INTER_LINEAR);

    // Return .NET Bitmap object
    return img.ToBitmap();
}