Replies: 9 comments 6 replies
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Hi @dfrumin2, It should work. Can you share the file that fails somehow? |
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Hi @jcupitt - forgive the newbie question but how do I DM you a link in GitHub? I've looked everywhere and can't find it :-) Should I send it to your gmail? BIG thanks. |
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Sent. thanks!!! |
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I got the file, thanks. Your TIFF is CMYKA, and there was a bug in 8.14.2 which stopped conversions from CMYKA working. It seems fine in 8.14.4. Try updating and see if that fixes it. |
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I'm using vips-8.14.4 :-( Thanks for looking at it! dan |
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No luck. Maybe the windows binary is missing something? See below... Note how the PNG is ~8K
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Awesome! Do you know when a binary will be available that I can test/use? One more question - we're also using vips in a linux docker container for the PDF => JPG/PNG export. Unfortunately we're seeing the output come out in garbled colors and goobered pixels. Do you think it's not using the default ICC/ICM that's embedded? My guys are looking to see if maybe the container is missing lcms2 or something. We use Windows to design our pipeline and then we run it in linux docker container for scale... Thanks again!!! |
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Thanks John - I'll get a test file for you of the color change. Question on the CMYKA bug you found - is there a workaround or other thing we can do with libvips when we're generating that TIFF? For various compliance reasons we try to stay to official releases of libraries so hoping there's something we can do with 8.14.4. And since we generate it maybe there's a flag or a way to do it that avoids the downstream issue? I ask because so far this is the only TIFF we found that fails - the others we generate with libvips all work great. :-) THANKS! |
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We're doing it using code but I'll ask Fabian on our eng team to comment. RE: releases, I'll ask him to look at that too. Compliance is a big thing in our universe with our clients so trying to stay on "official" releases has a benefit in less explaining :-) |
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Hi John -
I have a very large TIF with transparency that I want to convert to a PNG. Unfortunately after ~1sec I get an 8,246 PNG file that is invalid.
This is only with the original TIF. when I want to keep transparency. If I vips jpegsave it then it works great. I can flatten it to another TIF and then to PNG (no problem). But if I want to keep the transparency and go to PNG it bonks :-(
Any ideas?
thanks!!!
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