function glow(phmagick $p, $color = '#827f00', $offset = 10, $transparency = 60)
{
$p->requirePlugin('info');
list($w, $h) = $p->getInfo($p->getSource());
$cmd = $p->getBinary('convert');
$cmd .= ' "' . $p->getSource() . '" ';
$cmd .= '( +clone -background "' . $color . '" -shadow ' . $transparency . 'x' . $offset . '-' . $offset / 4 . '+' . $offset / 4 . ' ) +swap -background none -layers merge +repage ';
$cmd .= ' "' . $p->getDestination() . '"';
$p->execute($cmd);
$p->setSource($p->getDestination());
$p->setHistory($p->getDestination());
return $p;
}
/**
*
* Brightens an image, defualt: 50%
*
* @param $imageFile String - Physical path of the umage file
* @param $newFile String - Physical path of the generated image
* @param $alphaValue Integer - 100: white , 0: original color (no change)
* @return boolean - True: success
*/
function brighten(phmagick $p, $alphaValue = 50)
{
$percent = 100 - (int) $alphaValue;
//get original file dimentions
list($width, $height) = $p->getInfo();
$cmd = $p->getBinary('composite');
$cmd .= ' -blend ' . $percent . ' ';
$cmd .= '"' . $p->getSource() . '"';
$cmd .= ' -size ' . $width . 'x' . $height . ' xc:white ';
$cmd .= '-matte "' . $p->getDestination() . '"';
$p->execute($cmd);
$p->setSource($p->getDestination());
$p->setHistory($p->getDestination());
return $p;
}
/**
* tries to resize an image to the exact size wile mantaining aspect ratio,
* the image will be croped to fit the measures
* @param $width
* @param $height
*/
function resizeExactly(phmagick $p, $width, $height)
{
//requires Crop plugin
//requires dimensions plugin
$p->requirePlugin('crop');
$p->requirePlugin('info');
list($w, $h) = $p->getInfo($p->getSource());
if ($w > $h) {
$h = $height;
$w = 0;
} else {
$h = 0;
$w = $width;
}
$p->resize($w, $h)->crop($width, $height);
}
