Gigapixel workflow  

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franzkekko
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Gigapixel workflow

by franzkekko » Mon Apr 14, 2014 4:56 pm

Hi everyone,
I'm having troubles stiching and rendering a 360degrees image of 800Megapixels. I shooted in RAW format, processed cr2 files with lightroom for chromatic aberrations and vignetting, colors and details. I used TIFF as output.
I loaded my 48 tiffs on autopano 3 giga using the papywizard plugin.
Stiching was terrible, i had to analyze geometry many times and then i reached a excellent result (it's a room with lots of details, no uniform areas)
I need very high resolution, don't ask me why =)

Now...I have to correct overall lights and shadows and want to apply a graduated filter and correct some areas that have different color temperature.
Rendering as PSB works, but doesn't allow me to save as JPEG or TIFF.
Rendering as JPEG makes a file that photoshop CS6 doesn't recognize; GIMP recognized it and asked me to preserve ProPhoto Profile or convert it to sRGB Monitor Profile. But used too much memory and my computer crashed

I think a good way is to cut the result and save it in 4 or more parts. Then apply the same filter and corrections to all them.
But...how to do it?

Or may be there are someone who know the right way to achieve a perfect stiching and a usable output file for going on working with this image =)
After all, I'll have to use it on Panotour PRO 2...so I have to have a equirectangular image.

Waiting for help!

thanks in advance ;)

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mediavets
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Re: Gigapixel workflow

by mediavets » Mon Apr 14, 2014 5:35 pm

franzkekko wrote:Hi everyone,
I'm having troubles stiching and rendering a 360degrees image of 800Megapixels. I shooted in RAW format, processed cr2 files with lightroom for chromatic aberrations and vignetting, colors and details. I used TIFF as output.
I loaded my 48 tiffs on autopano 3 giga using the papywizard plugin.
Stiching was terrible, i had to analyze geometry many times and then i reached a excellent result (it's a room with lots of details, no uniform areas)
I need very high resolution, don't ask me why =)

Now...I have to correct overall lights and shadows and want to apply a graduated filter and correct some areas that have different color temperature.
Rendering as PSB works, but doesn't allow me to save as JPEG or TIFF.
Rendering as JPEG makes a file that photoshop CS6 doesn't recognize; GIMP recognized it and asked me to preserve ProPhoto Profile or convert it to sRGB Monitor Profile. But used too much memory and my computer crashed

I think a good way is to cut the result and save it in 4 or more parts. Then apply the same filter and corrections to all them.
But...how to do it?

Or may be there are someone who know the right way to achieve a perfect stitching and a usable output file for going on working with this image =)
After all, I'll have to use it on Panotour PRO 2...so I have to have a equirectangular image.

Waiting for help!

thanks in advance ;)


Consider KRO format.

Also see: http://www.bigmike.it/gigapxtools/index.html

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klausesser
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Re: Gigapixel workflow

by klausesser » Mon Apr 14, 2014 5:50 pm

franzkekko wrote:I loaded my 48 tiffs on autopano 3 giga using the papywizard plugin.


So you used a robotic head to shoot your images? Which one?

franzkekko wrote:Stiching was terrible, i had to analyze geometry many times and then i reached a excellent result (it's a room with lots of details, no uniform areas)
I need very high resolution, don't ask me why =)


Well - high resolution is needed when you have lots of details . . :cool:

franzkekko wrote:Now...I have to correct overall lights and shadows and want to apply a graduated filter and correct some areas that have different color temperature.


Coorecting lights and shadows preferably happens in the RAW-converter. "Graduated filter" . . what would you need THAT for in a room?
Reading you have different color-temperatur i guess you used the AWB?

One on my personal "iron rules" in panoramashooting: No automatics at all. No automatic whitebalance, No autofocus, No autoexposure.

franzkekko wrote:Rendering as PSB works, but doesn't allow me to save as JPEG or TIFF.


Depending on the size of your output need to use .psd/.psb - more than 30000px and more than 4GB.

franzkekko wrote:Or may be there are someone who know the right way to achieve a perfect stiching and a usable output file for going on working with this image =)
After all, I'll have to use it on Panotour PRO 2...so I have to have a equirectangular image.


1) perform ALL of your image-editing in the RAW-converter prior to stitching.
2) avoid ANY kind of automatics.
3) calculate what size you really need to use in PTP in the end.
4) when you import your equirectangular .psb image image into PTP: preferably use JPG 7 or 8 in PTP . . not higher -
that makes no real sense regarding the quality (aside from very rare cases), but blows up your data.

best and good luck, Klaus

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franzkekko
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Re: Gigapixel workflow

by franzkekko » Thu Apr 17, 2014 4:23 pm

Hey thanks really for the reply.
I shot in raw format, using ABSOLUTELY ALL in manual mode (exposure, focus, WB...).
I used Panogear with papywizard Bluetooth connected so I got my XML for coordinates of images.
After that I imported RAWs in lightroom, triplicated all files to create an emulated HDR (I've been able by this way to recover highlight and shadows that single raw could't do) so I got -1,0,+1 files with same settings except for exposure.
Exported in tiff 16bit, then processed with Photomatix outputting jpegs.
Imported JPEGS on autopano with PapyWizard plugin.
Made a geometric analyze and optimization.
I kept automatic exposure automatic in color correction of autopano, so i got a right exposure seeing global image and stiching vignette correction.
I exported a 40000x20000 PSB file, and a 20000x10000 jpeg

I didn't know that KPTP2 could import PSB files... I'm gonna try now =)
But I can't imagine how much RAM will it use :D

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franzkekko
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Re: Gigapixel workflow

by franzkekko » Thu Apr 17, 2014 4:25 pm


Consider KRO format.

Also see: http://www.bigmike.it/gigapxtools/index.html


Seems to be what I was thinking about ;)
I'm looking it ;)

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mediavets
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Re: Gigapixel workflow

by mediavets » Thu Apr 17, 2014 5:07 pm

franzkekko wrote:I didn't know that KPTP2 could import PSB files... I'm gonna try now =)
But I can't imagine how much RAM will it use :D


.KRO files too:
Attachments
1-ptp2-inputformats.jpg

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franzkekko
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Re: Gigapixel workflow

by franzkekko » Thu Apr 17, 2014 5:29 pm

the problem is that after stiching I may want to process image with photoshop to apply filters and correction such as detail's mask or graduated filters to brighten up ceiling and floor =)
KRO doesn't allow that :/
by the way, thanks again for the gigapixel cutter tool ;)


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