Resize with no crop and fill background color of the rest area
This plugin have ability to override default worpdress behavior and disable croping image but try to resize image to fit rectangle container size and fill space with background color.
You also able to choose background color to use.
Links: Example | Author Homepage
jresizr.zip
inside the /wp-content/plugins/
directory (or install via the built-in WordPress plugin installer)Settings
link next to its Deactivate
link (still on the Plugins page),