Lost Faces Found: New Tech Reveals Hidden Images in Earliest Photographs

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Credit: National Gallery of Canada/Sham et al., Journal of Cultural Heritage


A team of Canadian and US researchers are using X-rays to revive the images that were captured in the 18th century on the earliest form of photography—Daguerreotypes.

Their breakthrough demonstrations have taken artifacts tarnished beyond all recognition and turned out stunningly clear images of the individuals whose portraits were captured all those years ago.

Tson-Kong Sham, the lead scientist on the project from Western University of Canada, patterned with the National Gallery to acquire Daguerrotypes that were completely tarnished for research that would involve using a synchrotron X-ray device to draw out certain elements present on the Daguerrotypes.

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