IMAGE FORMING DEVICE AND IMAGE PROCESSING UNIT

摘要

PROBLEM TO BE SOLVED: To prevent reduced density at a low density part when the outputted image changes from the low density part to the high density part in the subscanning direction without causing the large sized image forming device or image output device and a high cost. SOLUTION: An image processing section extracts an edge picture element of a low density part in contact with a high density part when an image outputted from the image processing section receiving input image data Si changes from the low density part to the high density part in the subscanning direction. A correction object picture element number (a) and a picture element correction amount (b) are read from a lookup table based on the low density part picture element value L and the high density part picture element value H before and after the edge picture element so as to correct the picture element value of the input image data Si and the output image data So after the correction are outputted to an image output section.