How to fetch big image for Blogger blog Feed

Blogger Blog feeds provide small images for thumbnails. If you are fetching the feed using the shortcode and displaying a bit bigger images. In this case, the images might look blurry.

To overcome this, you can fetch the main big image from the Feed source instead of the thumbnail image. 

Add the following code to your theme's functions.php file:

add_filter( 'feedzy_retrieve_image', 'feedzy_retrieve_image', 10, 2 );
function feedzy_retrieve_image( $image, $item ) {
	return str_replace( '/s72-c/', '/', $image );
}

You can also add to your child theme's functions.php file. Functions.php file is in the root theme folder of every theme.

Note that if original images are too big, it will take some time for the page to be loaded. If you want original images but still good speed, you can use an image optimization service like Optimole. Optimole WordPress Plugin.

Here is how it looks before adding the code and after adding the code:

Before:

After:

Note: The code is applicable to Blogger Feeds only. And Assuming that the feed is not modified by the feed owner.