[HDR-photo] Starting out...

[Otto Feiler]

Gentlemen,

I am completely new to HDR imaging, but find it fascinating. I was reading 
this thread, and was wondering if you could:

stitch each group of bracketed image -> create HDR -> tonemap

I hope this makes sense. In other words, do the stitching of the -2EV shots, 
stitch the 0EV shots, stitch the +2EV shots, and then do the create HDR, and 
then the tonemapping. Would that work as well?

Thanks,
Otto...


----- Original Message ----- 
From: "Bernhard Vogl" <bvogl at gmx.at>
To: "High Dynamic Range Photography" <hdr-photo at hdr-photography.com>
Sent: Monday, February 12, 2007 9:18 AM
Subject: Re: [HDR-photo] Starting out...


> Hello John,
>
> Just my 2 cent worth:
>
> I think, for high quality images (panoramas) there are only 2 serious 
> alternatives at the moment (excluding Autopano Pro which i didn't 
> extensively test for this purpose):
>
> 1) from brackets: create HDR -> tonemap -> stitch
> 2) from brackets: create HDR -> stitch -> tonemap
>
> For simplicity, you may always want to use method (1) first and only use 
> (2) if the first one fails. Method 2 is a continuation of (1) because you 
> can use your (Panotools-based) project for stitching the HDR image.
>
> Method 1 will fail when the image sectors are not uniform in 
> brightness/contrast distribution, resulting in tonemapped images that look 
> like a panorama shot in automatic mode. This is where method 2 comes into 
> play.
> Method 1 can be done with every stitching software, method 2 is the domain 
> of Hugin's HDR stitcher.
>
> Best regards
> Bernhard
>
> -------- Original-Nachricht --------
> Datum: Sun, 11 Feb 2007 19:45:25 +0100
> Von: John Callan <john at shoutpictures.com>
> An: hdr-photo at hdr-photography.com
> CC:
> Betreff: Re: [HDR-photo] Starting out...
>
>> Dear Ferrell
>>
>> > I'm working on a book that includes a tutorial on HDR pano's. Are you
>> tone
>> > mapping the sector's then stitching the tone mapped images or creating 
>> > a
>> > pano of each unique exposure then merging the pano's and tone mapping?
>>
>> Funny you should ask me this very question as it's been something that 
>> has
>> been worrying me. I've tried both ways. Which way should I do it ?
>>
>> Thanks
>> John
>>
>> PS I have a stitched pan that I would like to ask everyone's opinion of.
>> Where may I post it for viewing ?
>>
>>
>>
>> _______________________________________________
>> HDR-photo mailing list
>> HDR-photo at hdr-photography.com
>> http://www.hdr-photography.com/mailman/listinfo/hdr-photo
> _______________________________________________
> HDR-photo mailing list
> HDR-photo at hdr-photography.com
> http://www.hdr-photography.com/mailman/listinfo/hdr-photo
>