Gets the brightness value of a color.
brightness() extracts the HSB brightness value from a p5.Color object, an array of color components, or a CSS color string.
By default, brightness() returns a color's HSB brightness in the range 0 to 100. If the colorMode() is set to HSB, it returns the brightness value in the given range.
示例
语法
brightness(color)
参数
color
p5.Color|Number[]|String:
p5.Color object, array of color components, or CSS color string.
返回值
Number: the brightness value.
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