A method of manufacturing or handling a substantially pure object includes shielding the substantially pure object from the environment by substantially enveloping the object in a fluid. To accomplish this, the image processing apparatus compares a threshold value generated from quantization information of each pixel when decoding is performed, and the absolute values of differences between a pixel of interest and pixel peripherals thereto, detects, in pixel units, an edge that existed prior to encoding, and corrects only noise produced by encoding. In one daub mode, once a player is assigned a bingo card representation and a game designation set is associated with the bingo card representation, daubing the bingo card representation must be performed manually by the player at the player’s respective player station using a suitable interface at the player station.