(PECL imagick 2.0.0)
ImagickPixel::getHSL — Returns the normalized HSL color of the ImagickPixel object
This function is currently not documented; only its argument list is available.
Returns the normalized HSL color described by the ImagickPixel object, with each of the three values as floating point numbers between 0.0 and 1.0.
Returns the HSL value in an array with the keys "hue", "saturation", and "luminosity". Throws ImagickPixelException on failure.
Note: Available with ImageMagick library version 6.2.9 and higher.