private/colors/Convert-RgbToHsv.ps1
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function Convert-RgbToHsv { param( [int] $Red, [int] $Green, [int] $Blue ) $redPercent = $Red / 255.0 $greenPercent = $Green / 255.0 $bluePercent = $Blue / 255.0 $max = [Math]::Max([Math]::Max($redPercent, $greenPercent), $bluePercent) $min = [Math]::Min([Math]::Min($redPercent, $greenPercent), $bluePercent) $delta = $max - $min $hue = 0 $saturation = 0 $value = 0 if ($delta -eq 0) { $hue = 0 } elseif ($max -eq $redPercent) { $hue = 60 * ((($greenPercent - $bluePercent) / $delta) % 6) } elseif ($max -eq $greenPercent) { $hue = 60 * ((($bluePercent - $redPercent) / $delta) + 2) } elseif ($max -eq $bluePercent) { $hue = 60 * ((($redPercent - $greenPercent) / $delta) + 4) } if ($hue -lt 0) { $hue = 360 + $hue } if ($max -eq 0) { $saturation = 0 } else { $saturation = $delta / $max * 100 } $value = $max * 100 return @( [int]$hue, [int]$saturation, [int]$value ) } |