From today I started to learn custom theme development for wordpress, and I'm currently stuck with the problem that shows a error when I try to crop the image for the header. Here is the sample code below.
(1. I had set the hook for the header image the functions.php
add_theme_support('custom-header');
(2. Set the image inside the header.php
<img class="myhead" src="<?php header_image(); ?>" height="<?php get_custom_header()->height ?>"
width="<?php get_custom_header()->width ?>" alt="">
(3.Tested if the image will be displayed inside the header. The image was displayed in the actual size.
How will I able to customize the header image in the Customize ? I would love to hear from you.