Induction of Fechner Colors in Black and White Photographs

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Science  15 Jan 1960:
Vol. 131, Issue 3394, pp. 155
DOI: 10.1126/science.131.3394.155


Fechner colors are visible when two black and white photographs of a scene which have been taken with longwavelength and short-wavelength light, respectively, are viewed in an alternating sequence. Such colors may be combined with spatially induced, two-primary colors to enhance or reduce the vividness of the latter.