摘要 |
An image taken via lens system ( 100 ) and CCD ( 101 ) is converted at A/D ( 102 ) into digital signals that are then stored in buffer ( 103 ). An output of buffer ( 103 ) is connected to output block ( 106 ) via noise reduction processing block ( 104 ), edge enhancement processing block ( 107 ) and signal processing block ( 105 ) in order. Noise reduction processing block ( 104 ) separated an image signal read out of buffer ( 103 ) into multiple frequency components. Transform processing is applied to the respective separated components that are then synthesized for noise reductions.
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