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Feature #957

Add a tag for "best guess lens model name"

Added by Torsten Bronger about 5 years ago. Updated about 4 years ago.

Status:
Closed
Priority:
Normal
Assignee:
Category:
exif
Target version:
Start date:
22 May 2014
Due date:
% Done:

100%

Estimated time:

Description

Currently, exiv2-using programs need to implement their own heuristics to find the proper lens model name. For example, DT does it in exif.cc and my own tools by something I posted to pastebin (it's three Python fragments).

In order to reduce code duplication and to concentrate competence, I think it makes sense that exiv2 adds a computed tag to its output, e.g. "Exif.Photo.DerivedLensModel". It should include a good guess for the lens model, and in case exiv2 thinks that no such guess is possible (e.g. something like "(167)" would be the best guess), it is left empty.

History

#1

Updated by Robin Mills over 4 years ago

  • Status changed from New to Resolved
  • Assignee set to Robin Mills
  • Target version set to 0.25

Torsten

I'm going to mark this "Resolved" as nobody has shown any interest in developing this feature. We have a lot of work in progress on Exiv2 and the only way you're likely to see this feature is for you to join the team to implement this.

I'm rather concerned about the word "guess". I don't want to guess. We either know and we don't!

I'm also concerned about the code you have provided. I would have to really study this to reverse engineer it into a specification and then implement it within Exiv2 in C++.

Robin

#2

Updated by Robin Mills over 4 years ago

  • % Done changed from 0 to 100
#3

Updated by Andreas Huggel about 4 years ago

  • Status changed from Resolved to Closed

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