/**
* Load the color information of the requested pixel into the $colors array
*
* @since 2.0
* @param SLIRImage $image
* @param integer $x x-axis position of pixel to calculate
* @param integer $y y-axis position of pixel to calculate
* @return boolean
*/
private function loadPixelInfo(SLIRImage $image, $x, $y)
{
if ($x < 0 || $x >= $image->getWidth() || $y < 0 || $y >= $image->getHeight()) {
return false;
}
if (!isset($this->colors[$x])) {
$this->colors[$x] = array();
}
if (!isset($this->colors[$x][$y])) {
$this->colors[$x][$y] = array();
}
if (!isset($this->colors[$x][$y][self::PIXEL_INTERESTINGNESS]) && !isset($this->colors[$x][$y][self::PIXEL_LAB])) {
$this->colors[$x][$y][self::PIXEL_LAB] = $this->evaluateColor(imagecolorat($image->getImage(), $x, $y));
}
return true;
}
