(a) (b) (c) Fig. 1. Waldemar Cordeiro and Giorgio Moscati, Derivadas de Uma Imagem (Derivatives of an Image), the first visual computer artwork made in Brazil, 1969. (a) Degree zero, 47 x 34.5 cm. (b) Degree one, 47 x 34.5 cm. (c) Degree two, 47 x 34.5 cm. For this work, Cordeiro used as a starting point a photographic image of a young couple expressing mutual affection through physical contact. The rational approach implied in digitally processing the image was balanced by the personal and emotional content of the picture.
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