PatchTool Display Check tool
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BabelColor News! |
The PatchTool Display Check tool is designed to make display measurements from preset patches (Quick-Test menu) or from any color list opened in PatchTool (PatchTool file menu). A Quick-Test consists of patches defining a Neutral ramp with or without ramps for the R, G, and B primaries. When doing a Quick-Test, you have to select profiles for both the Source and Destination. You can choose a built-in PatchTool RGB space or assign an ICC profile. When doing a Display Check with a PatchTool file, the Source profile cannot be selected in this dialog. Display Check will assign the file XYZ/L*a*b* data to the PCS, which will then be converted to the Destination profile. However, you do have some control on the Source, depending on the data type selected when importing (opening) the file; please consult the Help manual for more information. The measured values are presented against the reference values in a Compare window, which includes a "Stats" tab where you can perform a statistical analysis on the differences for any color parameter. When selecting a Quick-Test, an additional "Display data" tab will appear in the Compare window, and when a Quick-Test with Neutral and RGB ramps are measured, you will also see a chromaticity diagram in the "xy graph" tab. An illustrated step-by-step presentation on how to use PatchTool to measure and check your monitor's colorimetric accuracy according to IDEAlliance monitor proofing certification requirements can be downloaded from the Tutorials' page. An example of the statistics obtained when proofing a monitor is shown in this screenshot, and an example of a certification report can be opened here (Note: the text report was converted to the PDF format using another application). Please consult Appendix B of PatchTool's Help file, downloaded from this page, for a detailed description of how color management is handled within PatchTool. The following instruments are supported:
From the top-left, clockwise: DTP94, Eye-One Display2, i1Pro, Spyder2, Spyder3
Note-1: Eye-One Display 2 bundled with monitors: If an instrument is recognized to be an Eye-One Display or Eye-One Display 2 by PatchTool, then it can be used in the program and will provide accurate measurements. Example-1: The MDSVSENSOR2, which is part of the SVII-PRO-KIT sold by NEC for their wide gamut Spectraview displays, such as the PA271W model, is compatible with PatchTool; please consult the Display Check section of the Help manual for more information. Example-2: The Eye-One Display offered with HP DreamColor monitors is NOT compatible with PatchTool. Note-2: i1Display Pro colorimeter (X-Rite retail version, part #EODIS3-XR). Generic models sold by other companies (third parties, or OEM, part #EODIS-OEM) should also be compatible. At this time we cannot say if we will support or not custom models sold by other companies since separate agreements with these parties may be required. More specific info will be provided as new models are released. Mac OS X 10.5+ required for Mac computers. A Color Correction Matrix can be assigned to all the instruments supported by PatchTool, as shown just-below for the DTP94. The Correction Matrix can be loaded from a dialog, shown below, which is opened by clicking on the "Select Matrix" button. A matrix can also be assigned to an instrument from the Correction Matrix tool.
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