Edge-induced visual illusion generation apparatus, method of generating edge-induced visual illusion, edge-induced visual illusion generation program, printing medium, and recording medium
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United States of America Patent
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Mar 9, 2021
Grant Date -
Jun 13, 2019
app pub date -
Feb 15, 2019
filing date -
Aug 16, 2016
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Abstract
Provided are an edge-induced visual illusion generation apparatus, a method, a program, and a recording medium capable of being applied to any image, automatically generating an edge-induced visual illusion without complicated work, and improving contrast using the edge-induced visual illusion. A two-dimensional digital filter, which is a filter with no orientation or an even filter with orientation and is a filter that allows a band of a relatively high frequency to pass or a high pass filter, or is an orientation-selective wavelet frame or an orientation-selective filter bank that are a set of an approximation filter with no orientation and detail filters with orientations, is applied to image data, and a component of a relatively high frequency band or a high frequency component is extracted, and/or coloring is applied to an edge of the extracted band component or the high frequency component, thereby generating an edge-induced visual illusion image.
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