The ColorChecker is a color calibration tool used in photography and videography to ensure accurate color reproduction. It typically consists of a rectangular card featuring a grid of colored squares, each representing a specific color. Photographers and videographers use it to adjust their cameras and editing software, ensuring that colors appear true to life. Originally developed by X-Rite, the ColorChecker is widely recognized in the industry for its reliability. By capturing an image of the ColorChecker under the same lighting conditions as the subject, users can create a reference point for color correction in post-production, enhancing the overall quality of their work.