Patent ID: 9426333
Filing Date: 2016-08-23
CPC Classification: G06T,H04N

Claim Text:
1. An illusion analyzing apparatus comprising at least a storage unit and a control unit, the storage unit comprising: a filter storage unit that stores a wavelet frame with orientation selectivity or a filter bank with orientation selectivity that is a set of an approximate filter with no orientation and a plurality of detail filters with respective orientations; and an image data storage unit that stores image data; and the control unit comprising: a decomposing unit that performs multiresolution decomposition on a color component of the image data by using the wavelet frame with orientation selectivity or the filter bank with orientation selectivity and obtains subband signals; a reconstructing unit that reconstructs an image by summing the subband signals that are obtained by the decomposing unit and obtains reconstructed image data; and an illusion quantifying unit that quantifies an amount of illusion by calculating a ratio or difference in the color component between the image data and the reconstructed image data; and the coefficient processing unit performs, in a color space including lightness and color like human color-perception, for color components of color of the image data, the coefficient processing that is corrected such that the larger the energy that is determined from the decomposition detail coefficients of color and the decomposition detail coefficients of lightness is, the more small values are further reduced, and the smaller the energy is, the more small values are increased.