A video processing apparatus generates an output frame from two or more input images by deriving pixels to interleave between lines of pixels of a base field. The carrier includes a particulate magnetic core, and a cover layer located on the surface of the particulate magnetic core and including a resin and a filler. MIDI or audio notes are input and compared to the notes of a music track. A plurality of object classifier engines index and classify the plurality of objects found by the feature object engines. According to a second embodiment of the invention, a portion of the interior of the working channel of the endoscope has an interior surface having a non-circular cross sectional shape by the inclusion of a plurality of radially spaced and inwardly directed ribs or by being polygonally shaped. The segmented background is replaced with the advertising content.