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#1 2012-02-07 02:50:29

esotericvision
Member
Registered: 2011-11-18
Posts: 19

Stitched images too dark. How do I adjust the settings?

Hi,

I've been using PT Gui in my workflow for years now. Recently, I tried PTP and was very impressed so I bought it. I decided to test Autopano Pro. I had taken some shots in a dark bar and tried to stitch an image with this software. The preview image showed fairly accurate color but the final stitched image was extremely dark. I tried processing it several ways and it never got any better. Any suggestions on setting? The output (tiff, jpg)  looked the same everytime but the preview indicated the colors and exposure I expected.

NOTE:  The images were taken with a Sigma 8mm f3.5, 5D Mark II, ISO 6400 for a spherical pano.

Best,

Ben

Last edited by esotericvision (2012-02-07 02:53:53)

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#2 2012-02-09 10:02:21

AlexandreJ
Absolute beginner
From: Challes les eaux, France
Registered: 2005-11-14
Posts: 7632
Website

Re: Stitched images too dark. How do I adjust the settings?

It can be related to many part so perhaps could you post here one input image and the rendered output so we can guess where it comes from.
Some ideas to look at :
- color correction : enabled ? disabled ?
- rendering mode ?
- input images : raw or jpg, tiff ?

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#3 2012-02-10 19:41:22

jeradg
Member
Registered: 2012-01-17
Posts: 94

Re: Stitched images too dark. How do I adjust the settings?

I have tried using Workflow Case B and E, but I am getting dark sections or entire darkness depending on which images I have for detection. Prior to 2.6.1 I was not having this problem.

My goal is to output as HDR, adjust color/lighting in Photoshop CS5, and then put into Panotour.

This jpg looks a lot like the preview inside AP, but not quite as bad.

Edit: The one in the classroom with a dark spot to the left is very common. It's almost always dark on the left. I output this as HDR then converted 16 bit and then saved as jpg.


Uploaded Images

Last edited by jeradg (2012-02-10 20:41:59)

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#4 2012-02-10 21:18:03

klausesser
Member
From: Düsseldorf, Germany
Registered: 2006-05-22
Posts: 4598
Website

Re: Stitched images too dark. How do I adjust the settings?

jeradg wrote:

I have tried using Workflow Case B and E, but I am getting dark sections or entire darkness depending on which images I have for detection. Prior to 2.6.1 I was not having this problem.

My goal is to output as HDR, adjust color/lighting in Photoshop CS5, and then put into Panotour.

This jpg looks a lot like the preview inside AP, but not quite as bad.

Edit: The one in the classroom with a dark spot to the left is very common. It's almost always dark on the left. I output this as HDR then converted 16 bit and then saved as jpg.

Hi!

Did you try color-correction and anchors?

best, Klaus


„It’s not creative unless it sells.″ Leo Burnett

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#5 2012-02-10 22:29:02

jeradg
Member
Registered: 2012-01-17
Posts: 94

Re: Stitched images too dark. How do I adjust the settings?

klausesser wrote:

jeradg wrote:

I have tried using Workflow Case B and E, but I am getting dark sections or entire darkness depending on which images I have for detection. Prior to 2.6.1 I was not having this problem.

My goal is to output as HDR, adjust color/lighting in Photoshop CS5, and then put into Panotour.

This jpg looks a lot like the preview inside AP, but not quite as bad.

Edit: The one in the classroom with a dark spot to the left is very common. It's almost always dark on the left. I output this as HDR then converted 16 bit and then saved as jpg.

Hi!

Did you try color-correction and anchors?

best, Klaus

Hey Klaus,

I always appreciate your quick replies. I have tried doing the color correction, but without my exif info (I haven't yet attempted the exiftools) I am only able to do the LDR color correction. The LDR color correction changes the colors and doesn't really make much of an impact on the shadowing/sectioning.

And mid-post (just now before starting this paragraph) I started messing with the anchors, and I might be able to work with that some after I figure out how to use it... I will update after I get the chance to work it some more.

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#6 2012-02-13 18:38:15

AlexandreJ
Absolute beginner
From: Challes les eaux, France
Registered: 2005-11-14
Posts: 7632
Website

Re: Stitched images too dark. How do I adjust the settings?

Can you try 2.6.2 RC2 which has a fix for 360° blending that looks like this kind of issue ?
( don't use TIFF 16 but PSD 16bits ).

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#7 2012-02-13 21:55:36

jeradg
Member
Registered: 2012-01-17
Posts: 94

Re: Stitched images too dark. How do I adjust the settings?

AlexandreJ wrote:

Can you try 2.6.2 RC2 which has a fix for 360° blending that looks like this kind of issue ?
( don't use TIFF 16 but PSD 16bits ).

I am already using 2.6.2 RC2. I had to start using it to get past the 2.6.1 crash error last week.

I will be trying Klaus's suggestion tomorrow to see if that helps. The rendering doesn't seem to make much of a difference (although I have only tried hdr and jpg thus far).

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