78Setting CheckersChapter 6OverviewPreprocessing(Setting value) Before preprocessing After preprocessingEdge Extr. X In the X direction, extracts the area of which grayscale value has been changed.3x3 / 5x5Edge Extr. Y In the Y direction, extracts the area of which grayscale value has been changed.3x3 / 5x5Laplacian Extracts the area of which grayscale value has been changed.3x3 / 5x5Sharpen Enhances the area of which grayscale value has been changed. The image becomessharp. The noises may also be enhanced.3x3 / 5x5To configure the settings for preprocessing1. Select “Preprocess” from the checker menu.The menu to select a preprocessing group is shown in the status display area.2. Choose the desired preprocessing group from options A to E.