You can choose a different header image to show up according to your content. WP Display Header plugin lets you do this in a very easy way, you can select a custom header image while creating a new page, post or custom post type.
Install and activate WP Display Header. Upon activation the plugin adds a new meta box for selecting custom header image in your Add New Content page (for post, page and all other content types). You can simply select an image using the radio button, publish your content and you are done.
Custom header selector meta box in add new page:
Remember: Before activation this plugin make sure the theme activated in your website supports header image option. The plugin will not be getting activated if your theme doesn’t supports header images.