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Title: Is jpeg quality a tag?
Post by: hvdwolf on February 13, 2021, 01:01:20 PM

If this has been asked before: I'm sorry. I did search the forum.

My camera makes jpeg photos in 95% quality (next to RAW). Gimp recogizes this quality. If I save (export) this 95% quality as 85% (or whatever quality) and open them again in Gimp and do again an "export as" to jpeg, it still recognises the 95% or 85%.
Same when copyng the images to another laptop and opening them there in "another" Gimp and exporting them again.

I can't find this jpeg quality in the exiftool output on the same images.

Is this a metadata tag? And if so: Do I not recognise it from the output?

Title: Re: Is jpeg quality a tag?
Post by: StarGeek on February 13, 2021, 02:33:22 PM

The JPEGQualityEstimate tag is not computed unless it is specifically requested. See the Extra page (https://exiftool.org/TagNames/Extra.html) for a few more details.

Title: Re: Is jpeg quality a tag?
Post by: hvdwolf on February 14, 2021, 02:32:43 AM

Thanks a lot.
So many options still to discover in exiftool :)

ExifTool Forum

General => Metadata => Topic started by: hvdwolf on February 13, 2021, 01:01:20 PM