I want help finding where and just how to alter the dimensions and crop of the featured image inside a publish. I have looked in functions.php and init.php, but without results. I am utilizing a child theme from the inLine theme.

The present height is placed for 130px.

I have attempted altering the css, but that only stretches the look.

Inside your functions.php, paste one of these simple and adjust pixel width and height the way you like:

set_post_thumbnail_size( 100, 100 ); // 100 pixels wide by 100 pixels tall, box resize mode

OR:

set_post_thumbnail_size( 100, 100, true ); // 100 pixels wide by 100 pixels tall, hard crop mode

Do that in functions.php:

add_image_size( 'name-of-your-image-size', 600, 300, true );

Or maybe you'd like to make use of a wordpress plugin-

http://wordpress.org/extend/plugins/additional-image-sizes-zui/

After which inside your publish, retrieve it like so inside your single.php or loop:

<?php the_post_thumbnail('name-of-your-image-size'); ?>