Sultan Salman, S. (2010). Study The Resolution of the Written Text on the Whiteboard Based on the Criterion of Contrast for Different Illumination Conditions. , 21(6), 90-105.
Salema Sultan Salman. "Study The Resolution of the Written Text on the Whiteboard Based on the Criterion of Contrast for Different Illumination Conditions". , 21, 6, 2010, 90-105.
Sultan Salman, S. (2010). 'Study The Resolution of the Written Text on the Whiteboard Based on the Criterion of Contrast for Different Illumination Conditions', , 21(6), pp. 90-105.
Sultan Salman, S. Study The Resolution of the Written Text on the Whiteboard Based on the Criterion of Contrast for Different Illumination Conditions. , 2010; 21(6): 90-105.

Study The Resolution of the Written Text on the Whiteboard Based on the Criterion of Contrast for Different Illumination Conditions

Al-Mustansiriyah Journal of Science
Article 1, Volume 21, Issue 6, 2010, Pages 90-105
Author
Salema Sultan Salman
Abstract
Good quality of light plays a significant role in the psychological and biological processes of human beings. We know that performances of students increase by a good visual environment. Besides that, energy use by electric lighting is one of the important energy for classroom . We calculate the contrast as a function of illumination to the text which writing in the whiteboard by using pen of color black . The results of study show that the contrast based on text edge regions decreases with decreasing illumination and increasing distance between the camera and whiteboard .
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