image recognition with c# ...openCV or Aforge

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C#

.NET

image

recognition

I want to develop a software for recognizing a soft drink bottle in an image.
I am using visual studio 2010. I am confused whether I should use open CV or Aforge for processing images.. with Aforge i am facing some memory related issues.

and I also want to store intermediate processes images for templates in sql server how can i do that.How can I store "temp" or "i2" in sql server database
AForge.Imaging.Filters.FiltersSequence filter2 = new AForge.Imaging.Filters.FiltersSequence();

// add filters to the sequence
filter2.Add(new AForge.Imaging.Filters.Grayscale(0.300, 0.580, 0.2));
filter2.Add(new AForge.Imaging.Filters.OtsuThreshold());

// apply the filter sequence
UnmanagedImage iu = new UnmanagedImage(idata);

UnmanagedImage temp = filter2.Apply(iu);
System.Drawing.Image i2 = temp.ToManagedImage();

// show image
pictureBox1.Image = i2;
pictureBox1.Size = i2.Size;
iu.Dispose();