1980-1981. From a very limited digitalisation, these images were built by using the values of color obtained by digitalisation as control points of surfaces " 2D B-Spline ". The calculation of the surface allowed us to spread colors over all the screen.
We then looked for some effects to try to disturb the rather soft display produced by our first reconstruction, and to try to produce "impressions"of more personal or more puzzling faces.
It was necessary to try everything with the programming: there was no software of treatment of images. We used some simple developments, threshold, extraction, stacking elements.