A transformation process is applied by the picture transformation/generator to {TAIL ~ various portions} of the reduced size picture output from {HEAD ~ the second block generating unit}, and a plurality of transform block pictures are output to the similar block search means 
A transformation process is applied by the picture transformation / generator to { TAIL ~ various portions } of the reduced size picture output from { HEAD ~ the second block generating unit } , and a plurality of transform block pictures are output to the similar block search means
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