Hi Andy, please open an issue in the Gimp issue tracker and attach an example file: https://gitlab.gnome.org/GNOME/gimp/issues
Some scanners create 4-channel/12bit encodedimages. Then the 4th channel is an IR channel that is useful for reducing dust. Regards, Tobias Am Mi., 14. Aug. 2019 um 07:04 Uhr schrieb AndyJP <for...@gimpusers.com>: > I try scanning to 48bit (16 bit per channel) TIFF with VueScan, but GIMP > reads > it wrong, forwarding the data partially to alpha-channel. Probably, it is > interpreting 3-channel/16bit image as 4-channel/12bit encoded. > If not, I have no Idea where that 4-th alpha channel comes from (it is not > blank, but filled with some ghost from original image). So probably other > channels are also damaged. > > There are also error messages appear: > "Incompatible type for 'RichTIFFIPTC'; tag ignored" > and > "Alpha channel type not defined for file C:\...\.tiff. Assuming alpha is > not > premultiplied." > > Is there a way to read 3-channel 48-bit TIFFs to GIMP correctly? > > -- > AndyJP (via www.gimpusers.com/forums) > _______________________________________________ > gimp-user-list mailing list > List address: gimp-user-list@gnome.org > List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list > List archives: https://mail.gnome.org/archives/gimp-user-list > _______________________________________________ gimp-user-list mailing list List address: gimp-user-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list List archives: https://mail.gnome.org/archives/gimp-user-list
