Feature Idea: Tag Coverage Statistics

Posted on 2009-01-30 08:29:32-08 by metadatacrucher

As I read, ExifTool is tested with sample images of about 3000 camera models.

It would be very interesting to publish the exiftool reports of these models on the website. This allows exiftool users to know about the tag coverage of each model and trouble-shot model specific issues (i.e. no Exif ISO value).

Also some sort of accumulated statistic would be great (how many % of the cameras store serial numbers in the metadata etc).

The reports could be re-generated with every new exiftool production version with some sort of automated changelog (new tag discoveries, new models).

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Posted on 2009-01-30 10:36:13-08 by exiftool in response to 9835

Re: Feature Idea: Tag Coverage Statistics

I agree this would be interesting, but a lot of work. To digest all this information down into a reference that is readable and useful. A good makernote summary is available here, but for most people this is information overload.

If you are really interested, you can download all of the files in the exiftool meta information repository and extract whatever statistics you want yourself.

- Phil

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Posted on 2009-01-30 13:52:56-08 by metadatacrucher in response to 9836

Re: Feature Idea: Tag Coverage Statistics

Hi Phil, wow, this is great! Can't wait to play around with the sample data. BTW: which exiftool parameters do you use to get rid of the main photo/large preview images?

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Posted on 2009-01-30 16:25:53-08 by exiftool in response to 9840

Re: Feature Idea: Tag Coverage Statistics

I used another utility that I wrote to do a straight swap of the JPEG image segments. ExifTool doesn't have an option to do exactly this.

- Phil

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