get_u()

float xtd::drawing::color::get_u ( ) const

noexcept

Gets the Y'UV color model U (chroma) value for this xtd::drawing::color structure.

Returns

The Y'UV U value of this xtd::drawing::color. The y ranges from -0.5 through0.5. When U and V are both 0, the color is neutral (gray). Positive U values represent the red-green axis, and positive V values represent the blue-yellow axis