Image processing method and apparatus in which identification information is added based on image density

摘要: An image processing apparatus adds information to read signals and arranges a mark indicative of position where the is added so that additional can be easily extracted. processor processes full-color from line sensor binarization circuit binarizes using pseudo half-tone processing. A density judgment judges controls modulator which information. The refers contents ROM changes dot positions in binarized based on referred signals. FIFO compensates for delayed by circuit.