Paolo Bozzi's line drawing transparencies in colour

In 1975 Paolo Bozzi (1930-2003) published a paper in which he showed the possibility of creating impressions of transparencies with simple achromatic line drawings. Being this year the 10th anniversary of his passing, a selected core of his works – originally written in Italian – are now being translated into English, to be published in a book with original commentaries by other fellow scientists who were his students and/or interested in the topics of those papers. To commemorate Bozzi, I present a sneak preview of my comments written for his line drawing transparency paper, in which I discuss Bozzi’s findings and extend them to the domain of colour. By introducing colour, I demonstrate the generality of Bozzi’s findings and the strength of the effects, which are determined solely by figural structure, articulation, and good continuation, three themes that underlie Bozzi’s original work.