A tuning apparatus is provided, wherein the on and off resistances of semiconductor switches within an tuning IC are optimized, so as to provide high sensitivity and superior stability, a wide range of tuned frequency variation, compactness and high performance. The circuit includes a coil as a first inductor having a first inductance electrically coupled in series with a capacitor. The polymeric coating which is used is a methacrylate polymer, viz. The processed image is displayed, stored, or transmitted. Accordingly, an image compression ratio can be improved.