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Wood photography using light irradiation and heat treatment
Author(s) -
Mitsui Katsuya,
Murata Akihiro,
Tsuchikawa Satoru,
Kohara Mitsuhiro
Publication year - 2004
Publication title -
color research and application
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.393
H-Index - 62
eISSN - 1520-6378
pISSN - 0361-2317
DOI - 10.1002/col.20027
Subject(s) - irradiation , transmittance , optics , materials science , color difference , colour difference , thermal , thermal treatment , sunlight , photography , significant difference , composite material , art , optoelectronics , mathematics , visual arts , physics , computer science , meteorology , nuclear physics , statistics , filter (signal processing) , computer vision
To apply the coloring method using light irradiation and thermal treatment to print photographs on wood, the effect of the transmittance of negative films was investigated. Δ E * decreased with light irradiation when specimens covered with films with transmittances exceeding 20% were irradiated for 100 h. It was thought that this phenomenon was due to the decrease in Δ b *. The color of light‐irradiated wood changed remarkably with thermal treatment; however, the change in the color of exposed specimens covered with films with transmittances exceeding roughly 20% became constant. Clear photographs could be printed on wood using negative films with transmittances less than approximately 20%. Furthermore, the difference between the maximum and minimum values of Δ E * after thermal treatment was about 22. Humans can distinguish four to seven colors that can be created by this method. © 2004 Wiley Periodicals, Inc. Col Res Appl, 29, 312–316, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/col.20027