Hi them, i add a little script that works on sellacious 1.5.3, it auto optimizate and resize images .gif .jpeg .png

1.- open next file
<main joomla dir>/libraries/sellacious/helper/media.php

2.- Go to 426 line


3.- Next to this line

$file['path'] = ltrim($this->sanitize($path), '/ ');

add next

// -- INICIO - CUSTOM-LEONARDO ----------------------------------

if ($this->options['context']=='images')

{

    $imagen = new JImage($file['tmp_name']);

    $mimime = $imagen->getImageFileProperties($file['tmp_name']);

    $imagen->resize('850', '850', false, 2);				

    $image_information = array('quality' => 70);

    if($mimime->mime == 'image/gif')

     {

           $image_information = array('quality' => '');

     }

    elseif($mimime->mime == 'image/png')

     {

            $image_information = array('quality' => 9);

    }

    $imagen->toFile($file['tmp_name'], $mimime->type, array('quality' => $image_information['quality']));

    unset($imagen, $mimime);

}

				

// -- FIN - CUSTOM-LEONARDO -------------------------------------

It just work for seller image product and not on joomla media manager, at this way you have to install a plugin. i recomend EIR plugin

bye