PROBLEM TO BE SOLVED: To provide an image processing device capable of performing magnification correction at 1% unit or smaller and at an optional magnification variation ratio at high accuracy and at a high speed.;SOLUTION: In an image processing control part 13 of a light beam scanning device applied to the image processor, when a CPU131 performs a correction treatment by forming a gradation value obtained by changing magnification of drawing image data 17 received at PC_I/F132 according to a procedure of an image processing program according to control data 19, a table is referenced, and from a combination of a first gradation value of an image of a row or a column that is a target of the correction treatment and a second gradation value of an adjacent pixel thereof, a third gradation value that is a gradation value of a pixel of a row or a column that is a target of correction set to a relative position from an inserting or removing position determined by the magnification is selected to determine an exposure scanning gradation value. In a light beam emitting part I/F136, output image data 21 converted into writing information for exposing the drawing image data 17 of which the magnification is correction processed are sent.;SELECTED DRAWING: Figure 7;COPYRIGHT: (C)2017,JPO&INPIT
展开▼
