Print medium displaying illusion image and non-transitory computer-readable recording medium holding illusion image data
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United States of America Patent
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Aug 16, 2016
Grant Date -
Feb 26, 2015
app pub date -
Sep 15, 2014
filing date -
Nov 15, 2010
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Abstract
The present invention obtains subband signals by performing a multiresolution decomposition by a wavelet frame with orientation selectivity or a filterbank with orientation selectivity that is a set of an approximate filter with no orientation and a plurality of detail filters with respective orientations on image data, and, when an image is reconstructed by summing the obtained subband signals, generates reconstructed image data that creates a floating illusion by attenuating or amplifying a subband signal corresponding to at least one of detail filters with a predetermined orientation relative to a floating direction, in which an image is desired to be floated due to an illusion, among the detail filters.
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