Knowledgebase
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Correction Curve Error on Windows
Posted by Larisa Bolli on 09 July 2009 08:02 AM
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Where in the process is this happening? 1. At the end calibration after measuring the sample patches, just before the software asks for the name for the profile? 2. At the beginning of calibration, when the Target is set for Measured Luminance mode and the application? 3. At the Set Black Luminance screen in the SpyderProof (Before/After) screen? If it is happening at #2: just select a standard Target, like 2.2-6500, and NOT to set Luminance Mode to Measured Problem Calculating The Correction Curve This error message usually indicates that there are problems with the readings from the Spyder. Since the reading data is bad, the calculations are bad and the correction curve cannot be calculated. The general causes of bad Spyder readings are: 1) The wrong baffle was installed on the Spyder (not an issue with Spyder3) 2) The Spyder was not placed correctly on the screen 3) The data was corrupted due to issues with the USB communication 4) The Spyder is defective 5) A screen saver or screen dimmer came on during calibration, causing invalid readings. Issue 1) sometimes happens with new users who don't realize that part of the Spyder2 is removed when measuring a CRT monitor. Please carefully read the first screen that is displayed when the calibration procedure begins. The baffle must be removed for CRT monitors and it must be installed for LCD monitors. The Spyder2 is shipped with the baffle installed. Issue 2) sometimes happens with new users who don't realize they need to put the Spyder on the monitor where it can measure the color patches. When the software prompts you, please place the Spyder onto the monitor screen so that it covers the image of the Spyder as shown. To be sure that issue 3) is not the cause, be sure to plug the Spyder directly into a USB port on the computer, not through a hub, monitor, Keyboard or extension cable. Also unplug all other USB devices except the keyboard and mouse. Issue 4) can sometimes be determined by taking measurements of some “known” colors like White, Red, Green and Blue using the Colorimeter window and looking at the measured values. (Gregory, D. 2008) | |
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