Trying to handle 16 bit grayscale TIFFs without 8 bit conversion?

[transicord70]

Hi, I am generating 16-bit grayscale TIFF scans of film negatives using SilverFast Ai and an Epson scanner. I'd like to invert these (ie create a positive image) in GC. However, the TIFFs are always converted to 8-bit grayscale. Is there a way of opening, processing and saving a 16-bit grayscale TIFF without affecting the bit depth? I'm using GC v6.7.1 on a MacBook Pro running OS X 10.6.4. Many thanks, Matt

[thorstenlemke]

Hi Matt, Sorry, there is no 16 bit per channel support, yet. Thorsten > Von: transicord70 <matt@strangeacoustics.net> > Antworten an: <gcmac@yahoogroups.com> > Datum: Thu, 15 Jul 2010 22:04:06 -0000 > An: <gcmac@yahoogroups.com> > Betreff: [gcmac] Trying to handle 16 bit grayscale TIFFs without 8 bit > conversion? > > Hi, > > I am generating 16-bit grayscale TIFF scans of film negatives using SilverFast > Ai and an Epson scanner. I'd like to invert these (ie create a positive image) > in GC. However, the TIFFs are always converted to 8-bit grayscale. > > Is there a way of opening, processing and saving a 16-bit grayscale TIFF > without affecting the bit depth? > > I'm using GC v6.7.1 on a MacBook Pro running OS X 10.6.4. > > Many thanks, > Matt >

[transicord70]

Hi Thorsten, Thanks for the reply. Can I add 16 bit per channel support as a feature request please? Kind regards, Matt --- In gcmac@yahoogroups.com, Thorsten Lemke <lemke@...> wrote: > > Hi Matt, > > Sorry, there is no 16 bit per channel support, yet. > > Thorsten > > > Von: transicord70 <matt@...> > > Antworten an: <gcmac@yahoogroups.com> > > Datum: Thu, 15 Jul 2010 22:04:06 -0000 > > An: <gcmac@yahoogroups.com> > > Betreff: [gcmac] Trying to handle 16 bit grayscale TIFFs without 8 bit > > conversion? > > > > Hi, > > > > I am generating 16-bit grayscale TIFF scans of film negatives using SilverFast > > Ai and an Epson scanner. I'd like to invert these (ie create a positive image) > > in GC. However, the TIFFs are always converted to 8-bit grayscale. > > > > Is there a way of opening, processing and saving a 16-bit grayscale TIFF > > without affecting the bit depth? > > > > I'm using GC v6.7.1 on a MacBook Pro running OS X 10.6.4. > > > > Many thanks, > > Matt > > >

[thorstenlemke]

Hi Matt, Yes, that is already on the list for the changes after the release of the 7.0. Thorsten > Von: transicord70 <matt@strangeacoustics.net> > Antworten an: <gcmac@yahoogroups.com> > Datum: Fri, 16 Jul 2010 13:52:43 -0000 > An: <gcmac@yahoogroups.com> > Betreff: [gcmac] Re: Trying to handle 16 bit grayscale TIFFs without 8 bit > conversion? > > Hi Thorsten, > > Thanks for the reply. Can I add 16 bit per channel support as a feature > request please? > > Kind regards, > Matt > > --- In gcmac@yahoogroups.com, Thorsten Lemke <lemke@...> wrote: >> >> Hi Matt, >> >> Sorry, there is no 16 bit per channel support, yet. >> >> Thorsten >> >>> Von: transicord70 <matt@...> >>> Antworten an: <gcmac@yahoogroups.com> >>> Datum: Thu, 15 Jul 2010 22:04:06 -0000 >>> An: <gcmac@yahoogroups.com> >>> Betreff: [gcmac] Trying to handle 16 bit grayscale TIFFs without 8 bit >>> conversion? >>> >>> Hi, >>> >>> I am generating 16-bit grayscale TIFF scans of film negatives using >>> SilverFast >>> Ai and an Epson scanner. I'd like to invert these (ie create a positive >>> image) >>> in GC. However, the TIFFs are always converted to 8-bit grayscale. >>> >>> Is there a way of opening, processing and saving a 16-bit grayscale TIFF >>> without affecting the bit depth? >>> >>> I'm using GC v6.7.1 on a MacBook Pro running OS X 10.6.4. >>> >>> Many thanks, >>> Matt >>> >> > >

[transicord70]

Hi Thorsten, That's great news. Many thanks. Matt --- In gcmac@yahoogroups.com, Thorsten Lemke <lemke@...> wrote: > > Hi Matt, > > Yes, that is already on the list for the changes after the release of the > 7.0. > > Thorsten > > > > Von: transicord70 <matt@...> > > Antworten an: <gcmac@yahoogroups.com> > > Datum: Fri, 16 Jul 2010 13:52:43 -0000 > > An: <gcmac@yahoogroups.com> > > Betreff: [gcmac] Re: Trying to handle 16 bit grayscale TIFFs without 8 bit > > conversion? > > > > Hi Thorsten, > > > > Thanks for the reply. Can I add 16 bit per channel support as a feature > > request please? > > > > Kind regards, > > Matt > > > > --- In gcmac@yahoogroups.com, Thorsten Lemke <lemke@> wrote: > >> > >> Hi Matt, > >> > >> Sorry, there is no 16 bit per channel support, yet. > >> > >> Thorsten > >> > >>> Von: transicord70 <matt@> > >>> Antworten an: <gcmac@yahoogroups.com> > >>> Datum: Thu, 15 Jul 2010 22:04:06 -0000 > >>> An: <gcmac@yahoogroups.com> > >>> Betreff: [gcmac] Trying to handle 16 bit grayscale TIFFs without 8 bit > >>> conversion? > >>> > >>> Hi, > >>> > >>> I am generating 16-bit grayscale TIFF scans of film negatives using > >>> SilverFast > >>> Ai and an Epson scanner. I'd like to invert these (ie create a positive > >>> image) > >>> in GC. However, the TIFFs are always converted to 8-bit grayscale. > >>> > >>> Is there a way of opening, processing and saving a 16-bit grayscale TIFF > >>> without affecting the bit depth? > >>> > >>> I'm using GC v6.7.1 on a MacBook Pro running OS X 10.6.4. > >>> > >>> Many thanks, > >>> Matt > >>> > >> > > > > >

[amorphophallus2001]

On 17/07/10 10:49, Thorsten Lemke wrote: > Hi Matt, > > Yes, that is already on the list for the changes after the release of the > 7.0. Ehm.. "After" or "on" releasing 7.0? I need it, too. I'm used to do 14 (and hence 16) bit scan. Though seeing them in the browser is really slow... The preview takes a long time. > > Thorsten > Ciao, Ermanno Polli > >> Von: transicord70<matt@strangeacoustics.net> >> Antworten an:<gcmac@yahoogroups.com> >> Datum: Fri, 16 Jul 2010 13:52:43 -0000 >> An:<gcmac@yahoogroups.com> >> Betreff: [gcmac] Re: Trying to handle 16 bit grayscale TIFFs without 8 bit >> conversion? >> >> Hi Thorsten, >> >> Thanks for the reply. Can I add 16 bit per channel support as a feature >> request please? >> >> Kind regards, >> Matt >> >> --- In gcmac@yahoogroups.com, Thorsten Lemke<lemke@...> wrote: >>> >>> Hi Matt, >>> >>> Sorry, there is no 16 bit per channel support, yet. >>> >>> Thorsten >>> >>>> Von: transicord70<matt@...> >>>> Antworten an:<gcmac@yahoogroups.com> >>>> Datum: Thu, 15 Jul 2010 22:04:06 -0000 >>>> An:<gcmac@yahoogroups.com> >>>> Betreff: [gcmac] Trying to handle 16 bit grayscale TIFFs without 8 bit >>>> conversion? >>>> >>>> Hi, >>>> >>>> I am generating 16-bit grayscale TIFF scans of film negatives using >>>> SilverFast >>>> Ai and an Epson scanner. I'd like to invert these (ie create a positive >>>> image) >>>> in GC. However, the TIFFs are always converted to 8-bit grayscale. >>>> >>>> Is there a way of opening, processing and saving a 16-bit grayscale TIFF >>>> without affecting the bit depth? >>>> >>>> I'm using GC v6.7.1 on a MacBook Pro running OS X 10.6.4. >>>> >>>> Many thanks, >>>> Matt >>>> >>> >> >> > > > > > ------------------------------------ > > Yahoo! Groups Links > > > >

[thorstenlemke]

Hello, After the release. The 16 bit support does require a lot of changes. Thorsten > Von: amorphophallus2001 <erpol@mclink.it> > Antworten an: <gcmac@yahoogroups.com> > Datum: Mon, 19 Jul 2010 06:49:15 -0000 > An: <gcmac@yahoogroups.com> > Betreff: [gcmac] Re: Trying to handle 16 bit grayscale TIFFs without 8 bit > conversion? > > > On 17/07/10 10:49, Thorsten Lemke wrote: >> Hi Matt, >> >> Yes, that is already on the list for the changes after the release of the >> 7.0. > > Ehm.. "After" or "on" releasing 7.0? > I need it, too. > I'm used to do 14 (and hence 16) bit scan. > Though seeing them in the browser is really slow... The preview takes a long > time. > >

[emmanoelle123]

Has there been any update on this? (16 bit per channel) --- In gcmac@yahoogroups.com, Thorsten Lemke <lemke@...> wrote: > > Hello, > > After the release. > > The 16 bit support does require a lot of changes. > > Thorsten > > Von: amorphophallus2001 <erpol@...> > > Antworten an: <gcmac@yahoogroups.com> > > Datum: Mon, 19 Jul 2010 06:49:15 -0000 > > An: <gcmac@yahoogroups.com> > > Betreff: [gcmac] Re: Trying to handle 16 bit grayscale TIFFs without 8 bit > > conversion? > > > > > > On 17/07/10 10:49, Thorsten Lemke wrote: > >> Hi Matt, > >> > >> Yes, that is already on the list for the changes after the release of the > >> 7.0. > > > > Ehm.. "After" or "on" releasing 7.0? > > I need it, too. > > I'm used to do 14 (and hence 16) bit scan. > > Though seeing them in the browser is really slow... The preview takes a long > > time. > > > > >

[thorstenlemke]

Hi, This will be the next bug step after the version 8 release. Thorsten > Von: emmanoelle123 <emmanoelle123@yahoo.com> > Antworten an: <gcmac@yahoogroups.com> > Datum: Mon, 12 Mar 2012 14:39:52 -0000 > An: <gcmac@yahoogroups.com> > Betreff: [gcmac] Re: Trying to handle 16 bit grayscale TIFFs without 8 bit > conversion? > > Has there been any update on this? (16 bit per channel) > >