Schaltung zur Korrektur defekter Bildpunkte

摘要

A defective pixel correction circuit corrects a defective pixel in a solid imaging device such as a CCD exactly and sufficiently. A boundary detection circuit (11) calculates magnitudes of boundaries from signals of eight peripheral pixels taken in a pixel taking-in circuit (10) and a boundary ordering circuit (12) compares the calculated magnitudes of the boundaries with one another to order the magnitudes of the boundaries. An interpolation circuit (14) produces an interpolation signal in accordance with an inter-polation method determined by an interpolation method determining circuit (13) on the basis of the order of the ordered boundaries to correct the defective pixel.