| 摘要 |
PURPOSE:To form a picture with satisfactory picture quality by changing the processing method of a picture element to a linear interpolation method or a projection method corresponding to a magnification to form the picture. CONSTITUTION:When the copying magnification is more than 100%, namely, in the case of enlarging copy, a magnification calculation part 97B processes density data, which are stored in FF circuits 104-106, by the linear interpolation method as a rule and when the copying magnification is less than 100%, namely, in the case of reducing copy, the density data are processed by the projection method. Thus, since the processing method of the picture element is changed corresponding to the magnification to form the picture, the generation of trouble such as moire, etc., can be suppressed regardless of the magnification to form the picture and the picture can be formed with the satisfactory picture quality. |
