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TIFF and LibTiff Mail List Archive

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2017.03.09 14:30 "[Tiff] GPSIFD in TIFF", by Alnahawi, Nouri
2017.03.14 09:39 "[Tiff] Exif Tag ExifVersion", by Alnahawi, Nouri
2017.05.04 16:15 "[Tiff] Reading Exif from Tiff files with Multiple Pages", by Alnahawi, Nouri

2017.05.04 16:15 "[Tiff] Reading Exif from Tiff files with Multiple Pages", by Alnahawi, Nouri

Hi,

has anyone of you tried to read EXIF information form TIFF files that have multiple pages?

I've been using TIFFReadExifDirectory() to open the EXIF IFD, which works just fine on almost all TIFF files. Then I read the tags I need using TIFFGetField() with the tags such as EXIF_EXPOSURETIME etc.

Now I have these new made TIFF images that have two pages, and it's not working anymore. The first method call jumps to the EXIF IFD, but reading the tags returns 0 all the time. While debugging I found out that TIFFVGetField() is not being called; instead some Predictor method is called inside TIFFGetField, and I assume that it's because the tags cannot be found somehow.

I've attached one of those files, I don't know if it'll get through though.

In short, help, please? And thanks!

Best Regards
Nouri

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Nouri Alnahawi B.Sc.

Assistent Studienberater / Assistant Student Advisor

Koordinationsstelle Studierende mit Fluchthintergrund
Student Service Center (SSC)

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Hochschule Darmstadt
University of Applied Sciences

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