Journal of the Korean Academy of Clinical Electrophysiology (대한임상전기생리학회지)

The Korean Academy of Clinical Electrophysiology (대한임상전기생리학회)
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Analysis of Digital Images of Skin Reaction Induced By Ultraviolet Irradiation

자외선 조사에 의한 피부 반응의 디지털 영상분석

  • Lee, Dong-Yeop (Department of Physical Therapy, Sunmoon University) ;
  • Doo, Yeong-Taek (Department of Physical Therapy, Kwangju Women's University) ;
  • Lee, Jeong-Woo (Department of Physical Therapy, Kwangju Women's University)
  • 이동엽 (선문대학교 물리치료학과) ;
  • 두영택 (광주여자대학교 물리치료학과) ;
  • 이정우 (광주여자대학교 물리치료학과)
  • Received : 2010.11.03
  • Accepted : 2010.11.22
  • Published : 2010.12.31
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Abstract

Purpose : The purpose of this study was to analyze skin reactions induced by ultraviolet irradiation using digital imagery. Methods : We recruited 15 women and ultraviolet irradiation was applied to their lumbar area. (The degree of inflammatory reaction was set on the basis of the third erythema dose. Image analysis was divided by Photoshop CS (8 bit RGB scale and gray scale). Then, images were processes using Image Pro Plus 4.5 program analyzing R, G, B, chromatic red value, luminance value and gray value. Results : As a result of analyzing changes in RGB scale, there were statistically significant differences in R, G, and chromatic red values. As a result of analyzing changes in gray scale, there were statistically significant differences in gray value. Analysis of changes in B and luminance values showed that there was no statistically significant difference. Conclusion : This study found that ultraviolet irradiation had influence on RGB and gray scale. These results suggest that changes to digital images on skin reaction by ultraviolet irradiation are related to erythema. In particular, these changes are related to R and gray values.

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References

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