+ // filter by img_media_type
+ $media_type = str_replace( ' ', '_', $this->getOption( 'media_type', '' ) );
+ // filter by img_major_mime
+ $major_mime = str_replace( ' ', '_', $this->getOption( 'major_mime', '' ) );
+ // filter by img_minor_mime
+ $minor_mime = str_replace( ' ', '_', $this->getOption( 'minor_mime', '' ) );