11/4/2022 0 Comments How to open qtx file color![]() ![]() Ĭlick this button to load CGATS and QTX measurement files created with a third-party tool. All measurement results will be discarded. Then repeatedly select a color/tint value combination and measure the corresponding color patch.Ĭlick this button if you want to stop the measuring process. Perform a white calibration if requested to do so. If this value is 0 or unavailable, a default tolerance of 3.0 will be used automatically.Ĭlick if you want to change the tolerance value or to select different reference and test illuminants.Ĭlick this button to start the measuring process. The program uses the tolerance value stored in the CxF/X-4 metadata. A value of 3.0 means that the samples are not allowed to differ in metamerism by more than 3.0 delta E. A value of 0 means that the reference and measured sample must show exactly the same color deviations under both illuminants. The tolerance limit is the maximum deviation permitted from a target value of 0 dE. Validation is successful if all of these MI values are within the tolerance limit. ORIS CxF Toolbox calculates up to six MI values using one or two reference illuminants (D50 by default) and up to three test illuminants (A, C and F11 by default). The metamerism index (MI) indicates the probability that two samples (reference and measured sample) will show the same color deviation under two different illuminants. Users can change these values by clicking. A default value of 2.5 dE2000 is used automatically if these values are set to 0 or undefined. To calculate dE, the program uses the tolerance value and dE formula stored in the CxF/X-4 metadata. Target and actual values indicated numerically:ĬIE L*a*b* (lightness, red/green hue, blue/yellow hue)ĬIE L*C*h° (lightness, chromaticity, hue angle)ĭeviation between actual and target color (delta E)Ī pass/fail icon indicates whether dE is out of tolerance. Graphical representation of target and actual values calculated from spectral data: #HOW TO OPEN QTX FILE COLOR PDF#Target values for process colors are calculated from the specified ICC profile or PDF output intent, respectively. ![]() Target values for spot colors are defined by the CxF/X-4 data. Y-axis: Portion of reflected light (1,0 = 100%) ![]() X-axis: Wavelength of incident light in nanometers. Spectral reflectance curves for selected color and tint value. You can also specify that the next tint value should be selected automatically after each measurement. Select the tint value of the spot color to be measured.Ĭlick and select a different set of tint values if some tint values are not listed or missing on your spot ink characterization chart. Validation successful (within tolerance limits) The boxes are marked up like in the following example if measurements have been made already for the selected tint value: If the list is empty, load a file as explained above.Ĭlick if you want to add process colors to the list or to specify that the next color should be selected automatically after each measurement.Ĭlicking on one of the color boxes is an alternative to selecting a CxF/X-4 color definition from the list. The list is automatically populated with all CxF/X-4 color definitions which were currently loaded when you opened the Certification dialog. Use this list to select the spot color to be measured next. To load a PQX file, click the button in the bottom right corner. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |