www.hdrlabs.com"...here is the scoop:
XDepth is amazing! It combines the best things of JPEG-HDR and HDPhoto: It's backwards-compatible with JPEG and instantly usable with a free Photoshop Plugin. And after an initial test, it even seems to beat both of them in the amount of compression. Well done, Trellis!
...
Just for the sake of it, I tried to get the HDPhoto to the same (XDepth) file size, and ended up at 48% quality.
At this point, the (HD Photo) image turns into cubist masterpiece of artifacts."
Read the full article.www.tomshardware.co.uk"Our test image was 1634 KB in uncompressed TIFF format and was reduced to 17 KB in JPEG format (50% compression). The conversion to a 32-bit XDepth HDR resulted with 10% compression in a file size of
35 KB, whereas the lossless file ended up at 76 KB. The comparing lossless
Microsoft HD format was 282 KB. At least in this one sample,
we were not able to see any visible differences in quality between the XDepth HDR and the HD Photo versions of the image."
Read the full article.www.graphics.com"The interesting twist is that XDepth isn't a replacement for JPEG but instead adds the ability to compress High Dynamic Range images in such a way that the resulting files can still be manipulated and displayed by applications and browsers in the usual manner."
Read the full article.Other Quotes"XDepth is kinda neat. It's a compressed HDR (32 bits/channel) format that uses JPEG compression to get the size down. It also allows any other application that read JPEG to parse the file. Though unless it's XDepth "aware", the application will load it as 8 bits per channel. So far Lightwave and Photoshop have plug-ins which read and write this format properly. And hopefully more will come (Irfanview and Fusion would be nice :-). That high-rez 360 panorama "hobby" of mine HAS taken up a lot of HD space..."
www.flay.com"I tried it. Its great my 997kb hdr file was compressed to a 74kb xdepth jpeg file with all the data intact."
Spinquad.com User
