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Asked: 2026-06-11T18:55:46+00:00

this code is for skin color segmentation in C#.NET,please tell me what is difference

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this code is for skin color segmentation in C#.NET,please tell me what is difference bet R & r

what tells the values of f_upper and f_lower to us?

color = bm.GetPixel(i, j);
r = Convert.ToDouble(color.R) / Convert.ToDouble(color.R + color.G + color.B);
g = Convert.ToDouble(color.G) / Convert.ToDouble(color.R + color.G + color.B);
f_upper = -1.3767 * r * r + 1.0743 * r + 0.1452;
f_lower = -0.776 * r * r + 0.5601 * r + 0.1766;
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1 Answer

  1. Editorial Team

    r is a variable declared previously and is of type double (if the code isn’t wrong it have to be declared in that way). While R is a property of the Color struct, which indicates the color Red.

    For more info on RGB color model look here, while for Color struct look here.

    More specifically r is normalized value between 0 and 1 – % of R(Red color) in the color.
    f_upper and f_lower is not clear for me

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