Originally Posted by Jim_Gunn

You want the best quality, you should hand pick the exact frame you want in your editing app to export, one with no motion or blur that is lit good preferably, so that you start with the best image possible. Then you deinterlace image and sharpen it a little bit, maybe brighten it in Photoshop or any other image editing app and increase the contrast too.

Originally Posted by Jim_Gunn

If you want to do it automated and cull down the resulting images to the best, there are a few apps that can do this pretty good including SnatchIt (the newer version has a different name now).