views-view-field--banner-block--field-banner-image.tpl.php

<?php

  $node = node_load($row->nid);
  $image = field_get_items('node', $node, 'field_banner_image');

  // Setting variables for js object
  $site_url = $GLOBALS['base_url'].$GLOBALS['base_path'];
  $image_filename = $image[0]['uri'];

  // Creating array for object
  $bannerArr = array(
    "site_url" => $site_url,
  	"image_filename" => $image_filename
  );

  // Encoding json for object
  $bannerObj = json_encode($bannerArr);

  drupal_add_js("var bannerObj = jQuery.parseJSON('".$bannerObj."');", array(
  	'type' => 'inline',
  	'weight' => 20,
  	'every_page' => FALSE
  ));

  $image_output = field_view_value('node', $node, 'field_banner_image', $image[0], array(
    'type' => 'image'
  ));
  print render($image_output);

?>