John Cupitt

Sorry, no :( It was working with a Canon a few years ago, but I've not used a recent one with it. Good luck!

Hi @MAJAQA, Yes, you probably want `tonelut`: https://www.libvips.org/API/current/libvips-create.html#vips-tonelut nip2 has a GUI for experimenting with the parameters: 

Hello, I think tiffsaver is not setting the `JPEGCOLOURMODE` pseudo tag, or I can't find it in this file: https://github.com/ome/bioformats/blob/4463f22b7e098e684105eda19e0df1a4fc0f3697/components/formats-bsd/src/loci/formats/tiff/TiffSaver.java This is not a real tag, but instead an instruction...

Hi @dgault, Here's the bit of the libvips saver that does this: https://github.com/libvips/libvips/blob/master/libvips/foreign/vips2tiff.c#L770-L781 It's documented in the "pseudo tags" section: http://www.simplesystems.org/libtiff/functions/libtiff.html#pseudo-tags If you set it to RGB, libtiff will convert...

> TiffSaver here isn't using libtiff for the writing Oh, sorry, I missed this. You're right, if this isn't libtiff there's probably some other mechanism to control the JPEG compressor's...

Hello @fredprodibi, We've discussed this a bit. Last time the subject came up (August 2021 I think) we decided that oss-fuzz was still finding quite serious issues in libjxl and...

git master libvips (will be 8.13) now has a feature to enable or disable loaders at runtime. https://github.com/libvips/libvips/pull/2636

Hello @fsnightmckngbrd, My guess is your libvips build does not have PDF support, or you have a very old libvips. Is this a Debian-derived linux? Install `libvips-tools` and try this...

Yes, your libvips has been built without PDF support. You will probably need to build libvips yourself. What OS and version are you using?

Yes, your libvips has no PDF support. You will need to build your own libvips library. Are you OK reading Dockerfiles? Here is a sample one for installing php-vips on...