help on efficient image loading

[blabla2006]

I'm writing a program which runs on a specific directory with images, reads them to a Bitmap file and then resize them, and add the resized image to a Bitmap hashmap. The naive code to do this is like this:

Bitmap bmp = new Bitmap(flFileArray[i].FullName);
Bitmap bmp2 = new Bitmap(bmp, (int)(nudWidth.Value / nudNumOfPics.Value),
(int)(nudHight.Value / nudNumOfPics.Value));

m_hshBitmapArray.Add(bmp2, GetAvgPixelVal(bmp2));

It's quite simple, but i'm wondering if there is a faster way to do this. Can anyone think of something?

BTW, Im coding on VS2008, but it wouldn't hurt getting an answer for VS 2005.