Seamless perceptual morphing using continuous hybrids
Sylvain Brugnot, Marie L. Smith, Philippe G. Schyns · 2005
In 1994, Schyns & Oliva presented the concept of hybrids, images generated by combining the low spatial frequency (LSF) content of one image and the high spatial frequency (HSF) content of a second image. They were used to analyse the flexible nature of the human visual system for the categorization of scenes [?] and of faces [?].