X-Rite Color Checker
Provides standard to compare, measure, and analyze differences in color reproduction in various processes. The ultimate goal of any process of photography, electronic publishing, printing or television is to reproduce all colors perfectly. However, color rendition is a very subjective matter. The ColorChecker is a checkerboard array of 24 scientifically prepared colored squares in a wide range of colors. Many of these squares represent natural objects of special interest, such as human skin, foliage, and blue sky. These squares are not only the same color as their counterparts, but also reflect light the same way in all parts of the visible spectrum. Because of this unique feature, the squares will match the colors of natural objects under any illumination and with any color reproduction process.
The ColorChecker chart provides an easy way to recognize and evaluate the many factors that can affect color reproduction. To evaluate the effect of varying any given factor, simply compare the chart's color image as it appears on the photograph, television picture, computer monitor, or printed sample - with the actual ColorChecker. This comparison may be made visually or through optical density measurements.