Image processing device.

摘要

The present invention is made to reduce the effect of variation of pulses for driving a printer when recording image data and to improve the gray level representation of picture images to be printed. Data incoming through an image reading device are quantized and processed by two pixels by a gray level image processing circuit. The two-pixels' data are first discriminated by an edge discriminator (1) whether they represent an edge portion within the image or not. An object image, on which an operation for inter-pixel spacing shall be conducted, is selected according to the discrimination result. The arithmetic and logic portion (2) performs the above-mentioned operation by two pixels if the data are non-edge portion, while it performs correction for enhance if the data are an edge. This may eliminate effect of dots' displacement due to variation of drive in a printer and improve the quality, in particular, of a gray level image portion. <IMAGE>