A video signal Sori prior to zoom processing is input to the line memory 51, and the output of the line memory 511 is input to the multiplying circuit 521 and is also {HEAD ~ input} to {TAIL ~ the line memory} 512 
A video signal Sori prior to zoom processing is input to the line memory 51 , and the output of the line memory 511 is input to the multiplying circuit 521 and is also { HEAD ~ input } to { TAIL ~ the line memory } 512
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