method negate documentation in bbn\File\Image
Converts the image's color to negative.
Example
$img = new bbn\File\Image("/home/data/test/image.jpg");
$img->negate();
function()
{
if ($this->test()) {
if (self::isImagick()) {
if (!$this->img->negateImage(false)) {
$this->error = X::_("There has been a problem");
}
}
elseif (function_exists('imagefilter')) {
if (!imagefilter($this->img,IMG_FILTER_NEGATE)) {
$this->error = X::_("There has been a problem");
}
}
}
return $this;
}
Converts the image's color to negative. BBN is a suite of PHP and JS libraries and VueJS components - all open-source! bbn.io, build applications, the quick way
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