Print Page - Missing GIF Fields?

Title: Missing GIF Fields?
Post by: blue-j on December 06, 2021, 08:14:14 PM

I could be being a fool yet again - happens all the time! - but I am trying to trap for transparency, and in so doing noted that ExifTool does not appear to read these fields from GIF files?

https://exiftool.org/TagNames/GIF.html

It seems possible that the entire Graphic Control Extension is not extracted...?

I'm mostly concerned about Transparent Color Flag and Transparent Color Index, personally.

https://www.w3.org/Graphics/GIF/spec-gif89a.txt

- J

Title: Re: Missing GIF Fields?
Post by: blue-j on December 06, 2021, 08:24:20 PM

http://giflib.sourceforge.net/whatsinagif/bits_and_bytes.html

Title: Re: Missing GIF Fields?
Post by: Phil Harvey on December 07, 2021, 09:12:01 AM

Thanks for the suggestion.

ExifTool 12.37 will extract TrasparentColor from GIF images.

- Phil

ExifTool Forum

General => Metadata => Topic started by: blue-j on December 06, 2021, 08:14:14 PM