Within ShowItem.inc there's code that increments an album's view count when the album is viewed. To ignore views made by anyone with admin privileges, you need to:
This is how it is done (around line 106, v2.1 and line 120, v.2.2):
/* Is the user an admin? */
list ($ret, $isAdmin) = GalleryCoreApi::isUserInSiteAdminGroup();
if ($ret) {
    return array($ret->wrap(__FILE__, __LINE__), null);
 }
 /* Increment the view count */
 if (!$isAdmin) {
    $ret = GalleryCoreApi::incrementItemViewCount($item->getId());
    if ($ret) {
       return array($ret->wrap(__FILE__, __LINE__), null);
    }
 }
This is how it is done (around line 106, v2.0.x):
/* Is the user an admin? */
list ($ret, $isAdmin) = GalleryCoreApi::isUserInSiteAdminGroup();
if ($ret->isError()) {
    return array($ret->wrap(__FILE__, __LINE__), null);
}
/* Increment the view count */
if (!$isAdmin) {
    $ret = GalleryCoreApi::incrementItemViewCount($item->getId());
    if ($ret->isError()) {
        return array($ret->wrap(__FILE__, __LINE__), null);
    }
}