06-10-2018, 11:41 AM
(This post was last modified: 06-10-2018, 12:10 PM by rich2005.
Edit Reason: typo
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(06-10-2018, 11:25 AM)einstein Wrote: I was exporting TIFFs from Lightroom, using LZW compression (I could also use ZIP compression), used sRGB and also ProPhotoRGB space (if that makes any change). Then imported them into GIMP and further edited.
Is it just 16 bit tiff files from LightRoom that will not open (as 16 bit) in Gimp? Do you have any other applications to use. For RAW to Gimp there is both DarkRoom and RawTherapee applications. The Partha http://www.partha.com version of Gimp 2.10.2 includes NuFraw for importing RAW.
Quote:I use GIMP 2.10.0 with Win7 64-bit. Will it open 16-bit file as 16-bit? Will it make any change if I upgrade to GIMP 2.10.2?
I normally use GIMP in linux but keep a Win10 VM with Gimp 2.10.2 on it for Windows issues. Not a bad idea to update.
Quote:What's the difference between integer and floating point precision? I mean, I know it mathematically but how does it influence the image processing? 8 bit was always just 8 bit for me, the same goes with 16... 32 already sounds exotic.
Just what I read, Gimp works fastest in either 8 bit or 32 bit floating point. Working in 16 bit is ok but Gimp might be a little slower.
Quote:Can I alter the amount of JPEG compression within TIF format?
I do not know. Maybe you can, using say, ImageMagick. But that gives you a 8 bit tiff - why use that - export to a jpeg.
EDIT: A quick try with ImageMagick. Does not like Gimp made tiff's. An uncompressed tiff from delaboratory 96 MB compresses to 78 MB and opens in Gimp as 16 bit, which surprised me considering the Gimp warning. Trying to change compression, the usual quality setting had little effect, so probably not possible.