Yahoo Groups archive

Datacolor User to User Support Group.

Index last updated: 2026-04-28 23:18 UTC

Message

RE: [colorvision_group] QTR Linearization and Profiling

2008-02-03 by Tom Moore

Tom

You should be able to use density readings with QTR. That's what I have done
for years with my X-Rite 810. However, to use S3Print L* readings I had to
take the export file and paste it into MS Excel and then select the L*
column values and copy them. Then I could paste those values into the QTR
linearization table.

It seems the QTR Format Override check box only does something useful if you
select the CreateICC radio button. With the unlabelled button check, it
seems to do nothing with the values, as far as exporting is concerned.

Tom Moore

> -----Original Message-----
> From: colorvision_group@yahoogroups.com
> [mailto:colorvision_group@yahoogroups.com] On Behalf Of Tom Husband
> Sent: Saturday, February 02, 2008 6:30 PM
> To: colorvision_group@yahoogroups.com
> Subject: [colorvision_group] QTR Linearization and Profiling
> 
> When I measure a 21 step grayscale with the spectro using Tool>Measure
> what should be ticked off? I'd like to get Lab readings but if I tick
> Lab and QTR Format Override nothing appears in the .txt file I
> specify.  If I un-tick Lab and tick QTR Format Override there's a tick
> that appears in an un-labeled area below (I don't know what it is). I
> can then get readings but it's density readings not Lab and if I use
> those in QTR the curves aren't right.  Obviously I'm missing
> something.  I can't seem to find a procedure on this.

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.