i would try the plugin “attachments” for the images. use it all the time for making page-specific galeries, downloads, etc.
afterwards, you can use the script “supersized”
Enqueue the Javascript from the Plugin, and place the following Code into the <head>:
<script type="text/javascript">
jQuery(function($){
$.supersized({
//Functionality gnav != true
slideshow : 1, //Slideshow on/off
autoplay : 1, //Slideshow starts playing automatically
start_slide : 1, //Start slide (0 is random)
random : 0, //Randomize slide order (Ignores start slide)
slide_interval : 5000, //Length between transitions
transition : 1, //0-None, 1-Fade, 2-Slide Top, 3-Slide Right, 4-Slide Bottom, 5-Slide Left, 6-Carousel Right, 7-Carousel Left
transition_speed : 2500, //Speed of transition
new_window : 1, //Image links open in new window/tab
pause_hover : 0, //Pause slideshow on hover
keyboard_nav : 1, //Keyboard navigation on/off
performance : 1, //0-Normal, 1-Hybrid speed/quality, 2-Optimizes image quality, 3-Optimizes transition speed // (Only works for Firefox/IE, not Webkit)
image_protect : 1, //Disables image dragging and right click with Javascript
image_path : '', //Default image path
//Size & Position
min_width : 0, //Min width allowed (in pixels)
min_height : 0, //Min height allowed (in pixels)
vertical_center : 1, //Vertically center background
horizontal_center : 1, //Horizontally center background
fit_portrait : 0, //Portrait images will not exceed browser height
fit_landscape : 0, //Landscape images will not exceed browser width
//Components
navigation : 0, //Slideshow controls on/off
thumbnail_navigation : 0, //Thumbnail navigation
slide_counter : 0, //Display slide numbers
slide_captions : 0, //Slide caption (Pull from "title" in slides array)
slides : [ //Slideshow Images
{ image : "URLTOIMAGE", thumb : "URLTOTHUMB" , title : "TITLE" }, ... ]
});
});
</script>
you can use as many images as you want. I recommend them to have a resolution of about 1600×900, to have beautiful images evven on a big screen, while not having a too big filesize.