Notes on photo sphere/panoramic EXIF metadata

Google's EXIF/XMP metadata tag specification for panoramic images
Panorama images with sky are to have a negative value for the CroppedAreaTopPixels tag. (The panoramic viewer of Facebook ignores the value altogether, though, and assumes the horizon in the middle of the picture.)
If a camera or software normally produces panoramic images with cylindrical projection, then doing a vertical capture actually produces a transverse cylindrical image. There is no standardized value for the EXIF ProjectionType field to cover this. (One option is to reproject them to equirectangular — which, again, is not very well supported.)
Facebook's document on what tags to set
The Facebook web interface insists that FullPanoHeightPixels be half the size of FullPanoWidthPixels. Else you get “no new photos were uploaded”.

/ Tags: Photo.

A new system

[Updated May 7 2012]. (by hxtools sysinfo) [ares] Linux 3.1.1 sparc64 | 24-thr UltraSparc T1 (Niagara) 1000MHz | Load: 0.05 Tasks: 302 | Mem: 1824/7985MB | Disk: 11201/12835GB — has a nice ring to it, in the midst of an x86-filled world.

The CPU draws 72 W in idle (according to SC), eight RAM banks another 16.5 (SC), and another 5.5 for the rest of the system (disk), for a total of 94 W measured at the wall socket. Under load, the CPU goes up by ~20 W and the RAM banks 1–2 W.

It is always interesting to see what's in the Fujitsu SPARC Enterprise T1000 (6-core/24-thread configuration). The black Fujitsu front bevel also looks a lot more awesome than the silvery Sun/Oracle plating.

/proc/cpuinfo

lspci output

Posted 2009-11-21 11:11 / Tags: Hardware, Linux, Sparc. / link