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