Banding in sky

[Atul Sharma]

I am seeing banding in the sky.What is the source of this problem ?
Pls suggest solutions.
Thanks
Atul

[Atul Sharma]

I am seeing banding in the sky.What is the source of this problem ?
Pls suggest solutions.

Image Sky-Banding.jpg uploaded for viewing the problem.
Thanks
Atul

[Joergen Geerds]

On Jun 20, 7:03 am, Atul Sharma <photob...@gmail.com> wrote:
> I am seeing banding in the sky.What is the source of this problem ?
> Pls suggest solutions.

it could be either using jpgs as a source material (try 16 bit tiffs
instead), or possibly a rendering bug for 32bit (HDR) (but I thought
joost fixed that already).

joergen

[Atul Sharma]

Source material is 8bit Tiff- Exposure Fusion in Photomatix Pro (jpg file was just for upload to illustrate the problem) & I'm working on PTgui Ver 8.0.2. for stiching.

Atul

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Atul Sharma
H-2/1,D.L.F. City,
Phase 1,
Gurgaon 122 002
India
Mob:+91-98117 54549

[Joergen Geerds]

On Jun 20, 12:59 pm, Atul Sharma <photob...@gmail.com> wrote:
> Source material is 8bit Tiff- Exposure Fusion in Photomatix Pro (jpg file
> was just for upload to illustrate the problem) & I'm working on PTgui Ver
> 8.0.2. for stiching.

try enfusegui with your 16bit source tiles, and then drop the enfused
tiles into ptgui, and render to 16 bit tiff/psd/psb... only drop down
to 8 bit at the very last moment in photoshop. 8 bit doesn't hold
enough info in the blue channel for sky gradients.

joergen

[Atul Sharma]

Thanks Joergen will try enfuse.

Atul

joergen

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[Erik Krause]

Am 20.06.2010 18:59, schrieb Atul Sharma:
> I'm working on PTgui Ver 8.0.2. for stiching.

Update to the most recent version. There where some banding related bugs
fixed meanwhile. See http://www.ptgui.com/versionhistory.html for details.

--
Erik Krause
http://www.erik-krause.de

[Atul Sharma]

Thanks Erik.Just updated to the latest version of PTGui.

The problem was in the Exposure Fusion of Photomatix Pro - tried the enfusegui as  suggested by Joergen & the sky was clean :)            - used the same 8bit source files at default enfusegui settings.

Where does one figure out the enfusegui controls - any tutorials ? 

Atul

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[Erik Krause]

Am 20.06.2010 20:48, schrieb Atul Sharma:

> Where does one figure out the enfusegui controls - any tutorials ?

enfusegui ist just a GUI for the enfuse command line tool. Perhaps you
get some more information on http://wiki.panotools.org/Enfuse

The full documentation of the most recent enfuse version is on
http://panorama.dyndns.org/EandE-documentation/

[CalgaryPhotos.CA]

Atul - I can't help but say my god that is a beautiful shot!!! Do you
have a website? I'd love to see more of your work!

Rob
www.calgaryphotos.ca