Just a few notes on sharpening:
All images need sharpening. The fact that the images are comming from an interlaced sensor means that some averaging of colors has occured. In RGB mode, color and lightness are linked, so averaging color means averaging detail. This will be most noticable in the high contrast edges of an image.
Further, if you print the image, than at some point it will be converted from square pixels to round dots of ink. This will soften the image. Sharpening for output is neccesary.
- Joe U.
P.S. Very nice image bejikan. I Like!