Testing the image field type with the attritbute_to_store key.

test-image-attributes_in_metabox.php

<?php
/* Plugin Name: Admin Page Framework - Test Image Attributes in Meta Box */ 

if ( ! class_exists( 'AdminPageFramework' ) ) {
	include_once( dirname( dirname( __FILE__ ) ) . '/admin-page-framework/development/admin-page-framework.php' );
    // include_once( dirname( __FILE__ ) . '/library/admin-page-framework.min.php' );
}

class APF_MetaBox_TestImageAttributes extends AdminPageFramework_MetaBox {

	public function setUp() {
		
		$this->addSettingFields(
			array(
				'field_id'		=> 'image_with_attributes',
				'type'			=> 'image',
				'attributes_to_store'	=>	array( 'alt', 'id', 'title', 'caption', 'width', 'height', 'align', 'link' ),
				'title'			=> __( 'Image with Attributes', 'admin-page-framework-demo' ),
			)
		);		
	}
	
	public function do_APF_MetaBox_TestImageAttributes() {
		
		$iPostID = $GLOBALS['post']->ID;
		$aPostData = array();
		foreach( ( array ) get_post_custom_keys( $iPostID ) as $sKey ) 	// This way, array will be unserialized; easier to view.
			$aPostData[ $sKey ] = get_post_meta( $iPostID, $sKey, true );
			
		$this->oDebug->dumpArray( $aPostData );
		
	}
	
}
new APF_MetaBox_TestImageAttributes(
	'test_metabox_image_attributes',	// meta box ID
	__( 'Test Meta Box to Test Image Attributes', 'admin-page-framework-demo' ),	// title
	array( 'post' ),	// post type slugs: post, page, etc.
	'normal',	// context (what kind of metabox this is)
	'default'	// priority
);