threewallpapers.com

3D	Celebrity	Music
Abstract	Comics	Nature
Animals	Computers	Photography
Anime	Fantasy	Places
Art	Games	us
Aircrafts Planes	Holidays	Scenery
Bikes	Horror_Occult	Sci-Fi
Cars	Miscellaneous	Sports
Cartoons	Movies	Models
Halloween	Christmas	Valentine

Technical aspects

The main problem when enlarging an image to match the desktop resolution is the quality loss that appears during the resize process and the distorted image that appear when aspect ratio of the wallpaper is different than the aspect ratio of the desktop.

These problems can be eliminated by using vector images. However, these images are not very popular and are hard to find.

[edit] Image types

PNG and JPEG format are common. Some desktop systems, such as Mac OS (version 8.6 or later), KDE (version 3.4 or later), and GNOME, support vector wallpapers (PICT in Mac and SVG in KDE and GNOME). This has the advantage that a single file may be used for screens of any size, or stretched across several screens, without loss of quality.

Most display systems are capable of specifying a single colour to use as the background in place of a wallpaper, and some (such as KDE or GNOME) allow colour-gradients to be specified. Early versions of Mac OS and Microsoft Windows allowed for small repeating patterns to tile the desktop.