The Prewitt Operator is a simple image processing technique used to detect edges in images. It works by applying a convolution filter to the image, which highlights areas of rapid intensity change. This helps in identifying the boundaries of objects within the image. The operator uses two 3x3 kernels, one for detecting vertical edges and another for horizontal edges. By combining the results from both kernels, the Prewitt Operator provides a clearer representation of the edges, making it useful in various applications such as computer vision and image analysis.