APG has the ability to set a default.

APP can set the parameters for all the images if you use the normal windows commands to select all the images in the set.  That is, go into the image properties editor, click the first image and then shift-click the last image.

Last edited by hankkarl (2009-01-07 00:08:54)

Sorry, you do this in APP.  See http://www.autopano.net/wiki/action/vie … properties

In a few words: rather than having to manually enter ISO + time exposure + apperture, it could be preferable to enter EV plus and minus differences. This could be done in the source file properties window or, perhaps, at the anchor level...

mark_anderson_us wrote:

Shoot brackets
Create HDR in Photomatix
Stitch in APP (Create HDR)
Tone map in Photomatix

The biggest pain in this workflow is the the EXIF is lost in HDR creation (not sure if it's a limitation in Photomatix or the EXR format). (I have e-mailed Photomatix abotu this)

When Photomatix tone mapping is applied to an image, exposure EXIF data from the source image are no more meaningful (they can't describe the resulting image anymore, one could say that they vary from place to place in the same image!) and this is a possible reason for Photomatix to not copy EXIF data in the result.

When Photomatix tone mapping is NOT applied to a series of geometricaly identical images after fusing them, I doubt exposure EXIF data are meaningful, too. This would require improbable computations to take into account the variations of time exposure, apperture, ISO and even some other parameter to figure new values.

This don't preclude exposure indications being needed by Autopano when the images brightness was not matched/equalized during preprocessing. Having no EXIF data and differences in source images brightness often occurs when a raw-processor is used and tools like D-Lighting or even Levels or Curves are used.

Presently, LDR and HDR work like an automatic camera but in the future, perhaps, a manual exposure setting equivalent will be availlable...
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Pas sur d'avoir été très clair ci-dessus!

Le cas décrit par mark_anderson est un de ceux où le près-traitement des images source avant Autopano fait que les infos EXIF on disparu (pour de mauvaises ou pour de bonnes raisons, dont l'utilistion d'Enfuse/Tufuse avant Autopano, peu importe en réalité.) Qu'il n'y ait plus d'EXIF n'empêche pas qu'il y ait besoin d'utiliser le mode LDR et ses ancres ou le mode HDR.

De la même manière pouvoir faire des corrections manuelles (mettons en 1/3 d'IL) au niveau des ancres ne me semble pas une idée stupide (je suis même sur que nous sommes plusieurs à en rêver sans oser le demander...) Si je me décide à faire un post dans The Future c'est probablement de cette manière que je présenterai les choses, même si introduire ces correction manuelles a aussi un sens dès la lecture des images source.

Last edited by GURL (2009-01-07 11:10:33)

Thanks hankkarl

I'm using a PC. Will give it a whirl!

Hi Gary

My Middle East ones were shout between 6 and 10 years ago, so on a 1.3MP camera and there was no concept of HDR back then (at least I'd never heard of it - digital was just starting)..

My workflow was shoot each frame bracketed (3 shots per frame) pan, shoot 3, etc. I then took into Photomatix and created HDR's and stiched these.

You can take the bracketed shots directly into  APP but you do need the shooting data (in the EXIF ffile) for these. I don;t recall what EXIF stands for but it's all the details about the shot. Here's a sample from one of my shots:

2009:01:03 17:59:56
16-35mm @ 16mm
1/4 sec, f/8
Mode: Av
Metering: Spot
AEB comp: -2
ISO: 400
AF mode: Manual Focus
Drive: Single frame shooting
White balance: Color temp
Flash: Off
File size: 6,934KB
Image size: 2336 x 3504
Color space: AdobeRGB
Saturation: Normal
Sharpness: 0
Contrast: Normal
Custom Functions:
CFn 1: SET button function when shooting: Change parameters
CFn 2: Long exposure noise reduction: On
CFn 8: ISO expansion: On
CFn 9: Bracket sequence: -, 0, +, Auto cancel: Enable
CFn 13: AF point selection: Multi-controller direct
CFn 15: Shutter curtain sync: 2nd-curtain sync
CFn 17: Magnified view: image review & playback


The only image properties I set on my HDR's is focal length (avail from EXIF in original shots), camera (because of focal length multiplier) and aperture. Not sure aperture is required, but by entering focal length and multiplier, you can figure out FOV of the lens, etc.

Once you've stitched the images together you need to tione compress to 8bit per channel to make JPG, etc. you can do this in APP (during rendering) by using HDR color correction and Rh2 or RH4 filter.

I render my panos as EXR format and tone map in photoshop CS4


There is a section in the FAQ on HDR and using bracketed images.

Hope this helps

Regards

Mark

Use the PM plugin for PS, if you have it, its under filters.
Or just tonemap in PM if your pano is small enough.

But in any case, you'll have to convert from the HDR format to 8 or 16 bits, unless you have an HDR printer or monitor

PS does does allow some tone mapping in the conversion.

Last edited by hankkarl (2009-02-02 03:53:43)

OK, but try tonemapping.  You have at least three options within PS:
1. change from 32 bit to 16 or 8 bit
2. shaddow/highlight
3. USM, set the width very wide and the percentage low to start with.  Set the last parameter low also.

And also try the PM plugin.

If you shot bracketed, you need to tonemap.  If you didn't, a subtle use of tonemapping will improve an image, a heavy had will give you a result you may or may not like.

Last edited by hankkarl (2009-02-03 14:32:11)