IMAGE READER AND IMAGE READING METHOD

摘要: PROBLEM TO BE SOLVED: To obtain a high definition image by producing an signal performing arithmetic mean operation of the pixel data each between adjacent pixels respectively in oblique direction. SOLUTION: A glass plate is supported perpendicularly to direction optical axis at time 1st scan and slightly inclined shifted as much 1/2 pitch P CCD 2nd scan. And, balancing processing circuits 48 49 calculates average values S31 S32 from two strings S11 S12. Next, 50 51 calculate S33 S34 pieces S23 S24. dot sequential 52 53 alternately arrange cycle produce S41 S42. line circuit 54 outputs S42 every string S5 having double amount both horizontal/vertical directions.