TIF files loaded in Photoshop, are corrupted when saved again as TIF

deepskystacker / DSS

DeepSkyStacker

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TIF files loaded in Photoshop, are corrupted when saved again as TIF #115

Closed Menno5 closed 4 years ago

Menno5 commented 4 years ago

DSS 4.2.4 64bit, Photoshop CS6 64bit, Windows 10 Pro 64bit

DSS saves as TIF, opening and processing in Photoshop works fine. But then when saving that same file as TIF again, the file is corrupted. Not only that file but every file saved in Photoshop as TIF, no matter what file. Restarting Photoshop solves it. This was not happening with DSS 4.2.3. Attached files: the corrupted image (converted to JPG because of file size) and the image as it should be.

Autosave003

perdrix52 commented 4 years ago

Sounds like this can't be a DSS bug to me. Rather it looks like Photoshop can't handle images correctly that are stored in strips.

Menno5 commented 4 years ago

It is somehow, DSS 4.2.3 was fine, this only happens now with DSS 4.2.4.

perdrix52 commented 4 years ago

4.2.4 changed to write TIFF files in strips

perdrix52 commented 4 years ago

So no not a DSS bug IMHO

perdrix52 commented 4 years ago

My testing shows that the problem doesn't occur in PS CC 2020 - can load 32 bit tif from DSS OK and save as 32 bit OK, also convert to 16 bit and that saves correctly as well.

Menno5 commented 4 years ago

Okay, thanks for looking into it. Back to DSS 4.2.3 then for me :)

perdrix52 commented 4 years ago

Ah yes I see you're using Photoshop CS6 - that's a little long in the tooth now.

Menno5 commented 4 years ago

Yes, CS6 does all I want despite the constant nag that I should really use their subscribed stuff, cloud, an so on.

Lalo80 commented 4 years ago

The same thing happens with photoshop CC2019 and DSS4.2.4. installing v.4.2.3 back everithing is OK

Untitled-2

perdrix52 commented 4 years ago

Please will you take this to the DeepSkyStacker mailing list on groups.io (you'll need to join the list). I'm not disputing that there's a problem here, it's just that so far I've failed in all my attempts to reproduce it. Please state exactly what you did that works (the right hand image), and what you did to end up with the failure (the left hand image). The more minds we get looking at this the better.

Please don't post your images to the mailing list, as we have limited space, but point everyone to here to view the problem images.

Reproducing a problem is often (not always) 80% of the battle.

David

Menno5 commented 4 years ago

Just joined there, will mention it.

Lalo80 commented 4 years ago

the right hand image is original 32bit unchanged file from DSS v4.24 and left hand is converted to 16bit in ps2019. also the same thing hapens on Adobe Photoshop 2020. Version: 21.0.2 20191122.r.57 2019/11/22

perdrix52 commented 4 years ago

Please take this to the mailing list for discussion.