hugin-devs team mailing list archive

[Bruno Postle <696636@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

When Hugin creates an output image it discards all the photometric and
geometric information it knows about this image. Hugin ought to write
metadata to the image that would allow Hugin to use the image as input
at some time in the future.

Important information is:

 1. Horizontal field of view.
 2. Projection and any relevant projection parameters.
 3. Cropping information, since otherwise the hfov isn't usable.
 4. EV.
 5. EMoR parameters since these are effectively transferred from the first photo in the project to the output.

We could create fake sensor and focal length info, but this would only
be credible for rectilinear output. So probably the only way to do this
would be to write to the EXIF notes section much like
qtpfsgui/luminance, e.g. this is typical qtpfsgui output (this is the
actual format):

 Qtpfsgui 1.9.3 tonemapping parameters: 
 Operator: Mantiuk
 Parameters:
 Contrast Mapping factor: 0.1
 Saturation Factor: 2 
 Detail Factor: 1 
 ------
 PreGamma: 0.636

We already require exiftool, this info can be added to the existing
exiftool command in the .pto.mk stitching Makefile

** Affects: hugin
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/696636

Title:
  Hugin should write projection info to output

Status in Hugin - Panorama Tools GUI:
  New

Bug description:
  When Hugin creates an output image it discards all the photometric and geometric information it knows about this image. Hugin ought to write metadata to the image that would allow Hugin to use the image as input at some time in the future.

Important information is:

 1. Horizontal field of view.
 2. Projection and any relevant projection parameters.
 3. Cropping information, since otherwise the hfov isn't usable.
 4. EV.
 5. EMoR parameters since these are effectively transferred from the first photo in the project to the output.

We could create fake sensor and focal length info, but this would only be credible for rectilinear output. So probably the only way to do this would be to write to the EXIF notes section much like qtpfsgui/luminance, e.g. this is typical qtpfsgui output (this is the actual format):

 Qtpfsgui 1.9.3 tonemapping parameters: 
 Operator: Mantiuk
 Parameters:
 Contrast Mapping factor: 0.1
 Saturation Factor: 2 
 Detail Factor: 1 
 ------
 PreGamma: 0.636

We already require exiftool, this info can be added to the existing exiftool command in the .pto.mk stitching Makefile