Use this tool to determine a Color Correction Matrix between two instruments according to ASTM E1455-2010. A Color Correction Matrix helps improve inter-instrument agreement in emission (i.e. display) measurements; it can also be used to correct the response of a colorimeter designed for standard LCD displays when doing measurements on a wide gamut display. The matrix is computed by making measurements of the primaries and white of a given display using a reference instrument (often a spectrophotometer) and a target instrument (often a colorimeter). The measurements can be obtained with PatchTool Display-Check, if the instrument is supported by PatchTool, or data from any instrument can be entered or loaded into the tool. In addition, once you have a Color Correction Matrix, you can use it to make measurements with Display-Check. The matrix can be saved as a file and this file can be opened in the “Color Correction Matrix” dialog that can be accessed from the Display-Check tool. You can also directly assign this matrix to one of the instruments supported by PatchTool Display-Check. The following Application Note shows how to obtain a Color Correction Matrix with the PatchTool Correction Matrix tool. Display measurements done with REFERENCE and TARGET instruments are presented. It demonstrates how the TARGET instrument measurements match those of the REFERENCE instrument once a Correction Matrix is defined: AN-9a How to derive and use a Color Correction Matrix to improve display measurements (pdf; 700 KB)