Color shift in sky  

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Color shift in sky

by mnobrega66 » Mon Feb 22, 2016 5:37 pm

I´ve been experiencing problems with the sky in a gigapan project, picture enclosed, there are sifts in color as you can see, can anybody help me please

Regards

Miguel Nobrega
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olivierbo
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Re: Color shift in sky

by olivierbo » Tue Feb 23, 2016 1:53 pm

Hello,

Did you shoot using the manual mode? Also, have you tried the color corrections? Which camera did you use?

Kind regards,
Olivier

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Re: Color shift in sky

by mnobrega66 » Tue Feb 23, 2016 4:32 pm

Hi Oliver,

Yes! everything was in manual, color temperature, exposure, focus,I used the 5D MKIII, I tried color corrections in the Autopano Giga

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Re: Color shift in sky

by olivierbo » Tue Feb 23, 2016 4:53 pm

Ok great!
Do you notice a difference in the pictures before you add them into APG? Do you make any pre-processing using a third-party software (RAW decoding software for instance)?

Cheers,
Olivier

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Re: Color shift in sky

by mnobrega66 » Tue Feb 23, 2016 4:57 pm

yes, im using photoshop to output 16bts TIFF

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Re: Color shift in sky

by olivierbo » Tue Feb 23, 2016 5:04 pm

And...is there any difference after "treatment"?
Which version of Autopano (Pro or Giga) are you using? Have you tried with the latest release?

Olivier

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Re: Color shift in sky

by mnobrega66 » Tue Feb 23, 2016 5:09 pm

theres not a visible difference, and Im using your latest software

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Re: Color shift in sky

by olivierbo » Wed Feb 24, 2016 9:05 am

Hi Miguel,

Have you also tried to add the pictures without using the import module? Then, in the Group settings, Detection tab choose The reference level + Hard links and in Optimization tab, just select Optimization (Manual) and let default values. Detect...
Can you share your footages?

Cheers,
Olivier

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Re: Color shift in sky

by mnobrega66 » Wed Feb 24, 2016 11:26 am

Hi Oliver, ok I will try that, what do you mean by sharing footages?? you mean the photos???

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Re: Color shift in sky

by mnobrega66 » Wed Feb 24, 2016 12:27 pm

I tryed what you asked for and it tourned out very much worse

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Re: Color shift in sky

by olivierbo » Wed Feb 24, 2016 1:51 pm

OK, that was just to make a try. So, if you get a messy result, you cannot see a difference in the sky?
Yes, if you can share your photos.

Cheers,
Olivier

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Re: Color shift in sky

by mnobrega66 » Wed Feb 24, 2016 3:08 pm

yes, can you give your email, please

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Re: Color shift in sky

by mnobrega66 » Thu Feb 25, 2016 2:28 pm

Hi Oliver, is there a way in witch I can send you the files???

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Re: Color shift in sky

by olivierbo » Thu Feb 25, 2016 2:51 pm

Hi Miguel,

I sent you an email yesterday (3:20PM). I resend it right now ;-)

Cheers,
Olivier

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Re: Color shift in sky

by mnobrega66 » Fri Feb 26, 2016 12:35 am


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Re: Color shift in sky

by olivierbo » Fri Feb 26, 2016 4:20 pm

Hi Miguel,

Which camera did you use to do the shooting? I have something better BUT I can see seams between each picture of the sky! We've had that problem before with a Nikon D800.

Olivier

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Re: Color shift in sky

by mnobrega66 » Mon Feb 29, 2016 2:52 pm

Ho Oliver,

I was using a 5D MKIII

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Re: Color shift in sky

by mnobrega66 » Thu Mar 03, 2016 12:24 pm

Hi Oliver, any news??

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Re: Color shift in sky

by olivierbo » Thu Mar 03, 2016 1:05 pm

Hi Miguel,

Sorry for the late reply. I've posted something yesterday but it was not saved!
So, I would like to know if you experienced this before with the same hardware? If not, did you use a different focal lenght and aperture? Also, did you experience this with another camera/lens couple?
What I am wondering if the zoom used has a huge reduction of the brightness at the periphery compared to the image center, Autopano will not be able to make such vignetting correction.
That said, I continue to make tests but it takes a lot of time due to the pano size.

Thanks for your patience.

Cheers,
Olivier
As it can differ using a different focal lenght and aperture

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Re: Color shift in sky

by mnobrega66 » Thu Mar 03, 2016 7:08 pm

Ok, I understand I will try to use another focal length or camera

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Re: Color shift in sky

by olivierbo » Fri Mar 04, 2016 8:13 am

Ok Miguel, let me know regarding your test results.

Olivier


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