Disclosed herein is a washing machine that is capable of increasing a frictional force between an outer diameter of a rotary shaft and an inner race of a bearing to prevent the sliding between the rotary shaft and the bearing due to a gap between the outer diameter of the rotary shaft and the inner race of the bearing, thereby preventing creep noise from the rotary shaft. The pipeline comprises an antialiasing oversampling mechanism to perform for a given image, at an early stage of the pipeline, oversampling on a portion of the objects of the given image. A first recess of generally U-shape is provided in a boundary area of the first surface with the second surface and including first and second end portions.