protected function createVariances(Palette $palette_1, Palette $palette_2)
{
$colors_1 = $palette_1->colors()->get();
$colors_2 = $palette_2->colors()->get();
// Does each palette contain the same number of colors
if (count($colors_1) !== count($colors_2)) {
trigger_error(__CLASS__ . " requires both Palette objects to contain the same number of colors", E_USER_WARNING);
}
// Loop through palettes and compare each colors based on a matching index
for ($i = 0; $i < count($colors_1); $i++) {
$this->variances[$i] = $colors_1[$i]->compareTo($colors_2[$i])->getVariance();
$this->rgbas[$i] = $colors_1[$i]->getRgba();
}
return $this;
}
