Yes, you can link the image of an article to the article itself. /templates/[YOUR-THEME]/html/mod_sj_k2_slickslider/default.php
<?php
$img = K2SlickSliderHelper::getK2Image($item, $params);
$img = ImageHelper::init($img)->src();
if(!file_exists($img)){
$img = 'modules/'.$module->module.'/assets/images/nophoto.jpg';
}
$img = (strpos($img,'http://') !== false || strpos($img,'https://') !== false)?$img:(JURI::root().$img);
if ($img): ?>
<div class="item-image">
<div class="item-image-inner">
<a href="<?php echo $item->link; ?>" title="<?php echo $item->displaytitle; ?>" <?php echo K2SlickSliderHelper::parseTarget($params->get('item_link_target')); ?> >
<img alt="<?php echo $item->displaytitle;?>" src="<?php echo $img;?>"/>
</a>
</div>
</div>
<?php endif; ?>
