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Image.GetThumbnailImage is slow!

Posted By:      Posted Date: September 23, 2010    Points: 0   Category :ASP.Net

I'm trying to create an image generation program.  I can create very large images on the fly relatively quick.  By quick I mean around .5 seconds per image.  However, when I try to use the GetThumbnailImage routine or try to draw to another image from the original image, it takes a very long time (~1.5 - 2.0 seconds each).  Does anyone know why this is?  Also, is there a technique to make this faster?

Note that I have tried adjusting several attributes of the image from dpi, overall size, antialiasing options, etc and setting them from very high settings to very low quality settings and have notice neglible impact.  At best I saw around a couple tenths of a second difference which leads me to believe the Image object itself could be the problem.

Thanks for any feedback.

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