Hallo, my name is Rainer Taube, i\ufffdm from Berlin, Germany. I didn\ufffdt work with QTR for a longer time and now, trying to come back and understand again how things are working, i found something that confuses me. 1. I printed the Step-21-gray.tiff with Photoshop, no profile assigned. 2. I measured the Lab numbers with QuickRead which is still on my machine and i find it useful. 3. I exported the measured values 4. I drew the file on QTR-Linearize-Data.exe 5. The programme generates the ..._out.txt without error messages. Looking in it, all seems to be fine. 6. I drew th ..._out.txt file on QTR-Create-ICC.exe. An ....ICC is generated without error messages. So far so good. But now comes what confuses me. When i look into the numbers, that come up with QTR-Create-ICC, all Lab Values are shifted one step upwards. For example Before QTR-Create-ICC QTR-Linearize-Data version 2.5.2.0 File: C:\Dokumente und Einstellungen\Rainer\Eigene Dateien\Fotografie\Messungen\20080105_2100bo2-out.txt Step Dens Lab A B 0.00 0.048 95.80 0.00 0.00 - b L + 5.00 0.109 90.73 0.00 0.00 - b L + 10.00 0.177 85.25 0.00 0.00 - b L + 15.00 0.257 79.20 0.00 0.00 - b L + 20.00 0.339 73.43 0.00 0.00 - b L + 25.00 0.410 68.69 0.00 0.00 - b L + 30.00 0.485 63.93 0.00 0.00 - b L + 35.00 0.560 59.45 0.00 0.00 - b L + 40.00 0.651 54.36 0.00 0.00 - b L + 45.00 0.741 49.70 0.00 0.00 - Lb + 50.00 0.808 46.38 0.00 0.00 - L b + 55.00 0.899 42.17 0.00 0.00 - L b + 60.00 1.002 37.78 0.00 0.00 - L b + 65.00 1.116 33.26 0.00 0.00 - L b + 70.00 1.226 29.26 0.00 0.00 - L b + 75.00 1.343 25.38 0.00 0.00 - L b + 80.00 1.523 20.05 0.00 0.00 - L b + 85.00 1.679 15.98 0.00 0.00 - L b + 90.00 1.813 12.85 0.00 0.00 - L b + 95.00 2.012 8.77 0.00 0.00 - L b + 100.00 2.110 7.01 0.00 0.00 - L b + LINEARIZE="95.8 90.73 85.25 79.2 73.43 68.69 63.93 59.45 54.36 49.7 46.38 42.17 37.78 33.26 29.26 25.38 20.05 15.98 12.85 8.77 7.01" After QTR-Create-ICC it looks different (see the following table) and a new -out file is createt from the input file with the name ... -out-out.txt Alle Values are shifted 1 step up, 5% becomes 0% and so on. And most amazing. The 100% step gets a density of 4 and a Lab Value of 0. Is that really ok???? What i\ufffdm doing wrong? QTR-Create-ICC version 2.5.2.0 File: C:\Dokumente und Einstellungen\Rainer\Eigene Dateien\Fotografie\Messungen\20080105_2100bo2-out-out.txt Step Dens Lab A B 0.00 0.109 90.73 0.00 0.00 - b L + 5.00 0.177 85.25 0.00 0.00 - b L + 10.00 0.257 79.20 0.00 0.00 - b L + 15.00 0.339 73.43 0.00 0.00 - b L + 20.00 0.410 68.69 0.00 0.00 - b L + 25.00 0.485 63.93 0.00 0.00 - b L + 30.00 0.560 59.45 0.00 0.00 - b L + 35.00 0.651 54.36 0.00 0.00 - b L + 40.00 0.741 49.70 0.00 0.00 - Lb + 45.00 0.808 46.38 0.00 0.00 - L b + 50.00 0.899 42.17 0.00 0.00 - L b + 55.00 1.002 37.78 0.00 0.00 - L b + 60.00 1.116 33.26 0.00 0.00 - L b + 65.00 1.226 29.26 0.00 0.00 - L b + 70.00 1.343 25.38 0.00 0.00 - L b + 75.00 1.523 20.05 0.00 0.00 - L b + 80.00 1.679 15.98 0.00 0.00 - L b + 85.00 1.813 12.85 0.00 0.00 - L b + 90.00 2.012 8.77 0.00 0.00 - L b + 95.00 2.110 7.01 0.00 0.00 - L b + 100.00 4.000 0.00 0.00 0.00 L b + Created ICC file C:\Dokumente und Einstellungen\Rainer\Eigene Dateien\Fotografie\Messungen\20080105_2100bo2-out.icc Best regards Rainer Taube
Message
QTR Create ICC
2008-01-05 by Rainer Taube