Sprocket-hole banding filter and method of removing the sprocket-hole banding

摘要

In general, the invention provides a method for filtering a repeating pattern in a medium comprising the steps of identifying a repeating pattern in the medium and subtracting out that pattern from the medium. The medium may be photographic film, magnetic recording tape, or any other medium capable of recording a signal. The repeating pattern has a known frequency, and may be a physical property of the medium such as a sprocket-hole banding artifact or a motion artifact. As such, there is disclosed a method of identifying and correcting undesirable artifacts associated with sprocket holes during digital film processing.