The present invention relates to an image interpolation method based on matrix and an image processing system. The apparatus comprises a zinc-nickel electroplating bath comprising an amine additive, such as poly, which is capable of being oxidized in the bath to cyanides. An electric wire holding portion provided on the non-room side of the interior member and in the vicinity of the electrically equipped part holding portion. A power source is selectively electrically connected to the powered vacuum source.