11-22-2020, 09:27 AM
(This post was last modified: 11-22-2020, 09:55 AM by rich2005.
Edit Reason: edit
)
What format is the scan? 8 bit or 16 bit and what compression if any. (suspect embedded color profile for the color change) I can open a tif, get those three options, leave default, click import and that works here.
A couple of possibilities that work here to bypass the 3 options (using 16 bit tiff)
Rawtherapee (RT) https://rawtherapee.com/ Especially if it is a 16 bit tiff. Open the tiff. If it opens correctly, save straight away to another some-new-name. tiff. Various save options see: https://i.imgur.com/M9DAthE.jpg I tried a 16 bit and 16 bit float both bypass the Gimp warning & just ask about the colour profile. (Just my opinion but RT has one of the worst interfaces I have seen).
ImageMagick (IM) https://imagemagick.org/ Command line as
That makes a rather large uncompressed out.tiff that opens straight up in Gimp, looks like it strips out any color profile, strangely opens as 32 bit.
edit: Just a thought, some scanning software such a vuescan will embed a preview thumbnail image. That will show up in Gimp as pages in the Open dialogue. Do you get anything like that ?
A couple of possibilities that work here to bypass the 3 options (using 16 bit tiff)
Rawtherapee (RT) https://rawtherapee.com/ Especially if it is a 16 bit tiff. Open the tiff. If it opens correctly, save straight away to another some-new-name. tiff. Various save options see: https://i.imgur.com/M9DAthE.jpg I tried a 16 bit and 16 bit float both bypass the Gimp warning & just ask about the colour profile. (Just my opinion but RT has one of the worst interfaces I have seen).
ImageMagick (IM) https://imagemagick.org/ Command line as
Code:
magick in.tiff -strip out.tiffThat makes a rather large uncompressed out.tiff that opens straight up in Gimp, looks like it strips out any color profile, strangely opens as 32 bit.
edit: Just a thought, some scanning software such a vuescan will embed a preview thumbnail image. That will show up in Gimp as pages in the Open dialogue. Do you get anything like that ?