MaxImage 2.0 is a fullscreen background slideshow plugin that utilizes jQuery Cycle Plugin and all it’s transitions / options.
MaxImage 2.0 determines whether your browser can use CSS3′s background-size:cover. If it can, it uses it as to limit the amount of heavy lifting that jQuery has to do. That means the majority of your users will have a slim and smooth experience. That is so important with large image animations.
Backstretch is a simple jQuery plugin that allows you to add a dynamically-resized background image to any page. It will stretch any image to fit the page, and will automatically resize as the window size changes.
bgStretcher (Background Stretcher) is a jQuery plug-in which allows you to add a large image (or a set of images) to the background of your web page and will proportionally resize the image(s) to fill the entire window area. The plug-in will work as a slideshow if multiple images mode is used (the speed and duration for the slideshow is configurable).