Karakorum HDR gigapixel panorama displayed w/ krpano

Stoney · November 17, 2009 at 11:18 PM

Christian Bloch stitched and tone mapped this huge partial panorama of the Karakorum region. The famous everest climber David Breasher captured the HDR panorama as part of the GRIP project. This panorama uses the krpano viewer. He has a HDview version that allows dynamic tonemapping that he will post. Krpano version is up here.

http://www.hdrlabs.com/gallery/gigapa…oram_a&CYLINDER

Christian Bloch's HDR labs post with more information about the
http://www.hdrlabs.com//news/index.ph…7#disqus_thread

Blochi · November 18, 2009 at 10:36 AM

Thanks Castellonis for bringing this up.

And yes, I would love to stick with krpano, because I love the customization features. But I would need some way of showing an HDR.

Either by supporting JPEG-XR, so I can use the HDView tiles like I use Zoomify tiles for the other Gigas. Or by letting me do multiple pano layer, with a blending mode and event integration. Would also need to have a display pixel value picker, that I can use to trigger events and tweens. Or a mask that can be moved to show a different pano, that would especially be interesting to X-Ray the old glacier photos...

.Christian
Big or biggest krpano fan?

Stoney · November 19, 2009 at 12:43 AM

Adobe might already provide a method of blending multiple images or altering a single image with its "Adobe Pixel Bender" trademark technology which is available in flash player 10 and above. This technology would allow you to speed up code that filters pixels relative to using existing filters in actionsript. Pixel Bender images have 32 bits per channel and flash has 8 bits per channel. You would be able to read multiple images apply a fast realtime TMO and convert it back to 8 bits per channel ( end of chapter 1, pixel bender documentation ). I am not sure if flash will use GPU shader units to do this.

Home page
http://labs.adobe.com/technologies/pixelbender/
Documents
http://labs.adobe.com/downloads/pixelbender.html#docs

Chapter 7 of the Pixel Bender documentation shows how to embed this object in the .SWF file so that it does not need to be dynamically loaded.

Krpano might use the pixel bender or the flash.geom.ColorTransform object with a convolution filter to implement sharpening to the image tiles.

Rafal Mantuik and Wolfgang Heidrich have a work flow with their HDR HTML
http://www.hdrlabs.com/news/index.php?id=5133403578387498143

There is a pixel bender example that blends two images together in Keith Peters, ActionScript 3.0 Animation, friendsof ( Apress ) 2009 on page 395.

Participate now!