[HDRI] Photosphere 1.6 available

Kirk Thibault kthibault at biomechanicsinc.com
Sun May 28 15:11:03 CEST 2006


I will try the book's DVD and compare the results.  Thanks Greg!

kirk


On May 28, 2006, at 1:11 AM, Gregory J. Ward wrote:

> Hi Kirk,
>
> Nice panos!  The color strangeness is just the usual problem  
> related to a global tone-mapper like the one in Photosphere.  To  
> preserve local color and contrast, you need to use a local tone- 
> mapping algorithm.  Unfortunately, I don't have any to offer at the  
> moment.
>
> Erik Reinhard has implemented a bunch (including his own) and put  
> the source code on the HDR Imaging book's DVD-ROM if you want to  
> give those a try.
>
> -Greg
>
>> From: Kirk Thibault <kthibault at biomechanicsinc.com>
>> Date: May 27, 2006 8:14:21 PM PDT
>>
>> A couple of quick HDR panorama tests, reduced to LDR JPEG:
>>
>> http://kirkt.smugmug.com/photos/71901716-L.jpg
>>
>> http://kirkt.smugmug.com/photos/71891370-L.jpg
>>
>> I didn;t have much time to shoot, so they are little rough, but  
>> pretty cool to be able to stitch HDR together.  Greg, how come  
>> there is so much color wackiness in the higher dynamic range areas  
>> - the colors get way over-saturated and the contrast goes south  
>> pretty quickly - I'm guessing that multiple exposures of the HDR  
>> with some layer masking and compositing may give better results.   
>> I tried messing with the tone map curve in PShop CS2, but that  
>> will take some getting used to.
>>
>> neat-o!
>>
>> kirk
>
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