We come now to the Tedd images. These are 1600 by 1200 pixel shots, substantially less than the 12 megapixel full resolution of the Canon PowerShot S100 that took them. In general, upsampling is most profoundly compelling in extending resolution to the full resolution of the camera and beyond, but it certainly remains true that at any given resolution the upsampled image conveys more information to a human observer than the static original. It is also true that server-side upsampling reduces latency and improves the online viewer experience.
Click on the image above to open a window with just the original jpg file.
Here is the 2x upsampled image, tiled on the server and interactively served:
Here is the 3x upsampled image
and here is the 4x upsampled image