jpnp commented on issue josch/img2pdf#144
16 bit TIFF fileBoth Debian Stable, and Ubuntu 20.04 (it'll be a while before we upgrade at work) are pre 3.10 - never mind RHEL and the rest. I'd guess that unless they have a specific need for a newer version,…
2 years ago
jpnp commented on issue josch/img2pdf#144
16 bit TIFF fileFrom the patch: > _# theoretically RGBA and CMYKA should be supported as well > _# please teach me how to create such a MIFF file Note you can quite easily create a 16bpc CMYKA MIFF file…
2 years ago
jpnp commented on issue josch/img2pdf#144
16 bit TIFF fileCurious. It is CMYK (it's 4 channel and the InkSet:1 on last line of your tiffinfo output means exactly [this](https://www.awaresystems.be/imaging/tiff/tifftags/inkset.html)), but it does seem to…
2 years ago
jpnp commented on issue josch/img2pdf#144
16 bit TIFF fileHa ha. Nothing as exciting as you're thinking, just syringe refilling cartridges with actual ink, but not a good match to that the printers were tuned with. There are quite a few users for…
2 years ago
jpnp commented on issue josch/img2pdf#144
16 bit TIFF fileThe printer does dither to 16 bits, but the individual steps would likely not be visible. If the printer's response was roughly perceptually linear then 8bit would be enough but as it is I need…
2 years ago
jpnp commented on issue josch/img2pdf#144
16 bit TIFF fileI'm afraid I do need 16bit as the CMYK ends up sent to a non-linear device where 8 bits isn't smooth enough. Here is a 16bit image of colour test patches made with argyllcms. Doesn't look…
2 years ago