[3dem] Fwd: Help TIFF compression scheme 65002 (0xfdea)

[Grigory Sharov]

Hello Shawn,

you can find the tags in
https://urldefense.com/v3/__https://assets.thermofisher.com/TFS-Assets/MSD/Support-Files/eer-file-format.pdf__;!!Mih3wA!CSaLpeD-KCPepW_Ib4Rx58XJI03HD1mPmMNX8a08Ac7UG5Jz5yvaEYS3y-cgIr-KuNjvdugndCTjXvgoXP0jmCsRaGY$ 

Best regards,
Grigory

--------------------------------------------------------------------------------
Grigory Sharov, Ph.D.

MRC Laboratory of Molecular Biology,
Francis Crick Avenue,
Cambridge Biomedical Campus,
Cambridge CB2 0QH, UK.
tel. +44 (0) 1223 267228 <+44%201223%20267228>
e-mail: gsharov at mrc-lmb.cam.ac.uk


On Wed, Jun 4, 2025 at 4:47 PM Shawn Zheng via 3dem <3dem at ncmir.ucsd.edu>
wrote:

>
>
> ---------- Forwarded message ---------
> From: Shawn Zheng <shawn.zheng at czii.org>
> Date: Wed, Jun 4, 2025 at 8:46 AM
> Subject: Help TIFF compression scheme 65002 (0xfdea)
> To: ccpem at jiscmail.ac.uk <ccpem at jiscmail.ac.uk>
> Cc: Andre LB Ambrosio <andre at ifsc.usp.br>
>
>
> Dear colleagues,
>
> I am trying to help an user process EER movies compressed with 65002
> (0xfdea). Running tiffinfo on this file shows that it has three tags:
>
> Tag 65007: 7
> Tag 65008: 1
> Tag 65009: 1
>
> When I tried to read these tags using TIFFGetField, MotionCor3 crashed.
> Although I guess Tag 65007: 7 probably means 7 bits for run length
> encoding. Please let me know if this is correct. Please also let me know
> what Tags 65008 and 65009 mean. Thanks for your help.
>
> Best,
> Shawn
>
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