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mean difference from happy to angry
Mean Difference from Happy and Back (634nm).
Triptych. DVD projection, acrylic S1070-Y60R Johnstone’s paint S0540-B10G 2006
The work was made in collaboration with the National Physical laboratory and infra red imaging specialists Tagar Stonor Richardson. . A spectrophotometer was used to measure the colour changes a human face undergoes in different emotions. The spectrophotometer measures reflected light at 1000 visible wavelengths. It is able to register colours beyond the capabilities of the human eye, and measures light in the near Infra-red and near Ultra violet.
An experiment was set up to see what kind of results would be revealed (particularly in the infra red part of the spectrum) in a human face undergoing different extreme emotions. A video was made showing the process of recording these emotions. The results from the sp were deciphered and two emotions were chosen to be made into portraits. These were drawn and painted onto panel using traditional under drawing materials using carbon black. `The portraits were then painted out (covered over) to a white. They were then photographed using Infra red imaging and revealed on video, Ir imaging is used in restoration as it can penetrate paint layers and is used to reveal under drawings to help authenticate a picture and reveal hidden techniques and changes made by an artist. The transition of one emotion to another was identified as a series of wavelengths and an equivalent commercial paint colour was formulated and used in the final painting.
