COLOR IMAGE PROCESSING DEVICE

摘要

A color image processing device uses a dither pattern of blocks, each including a plurality of dots representing the gradations of each pixel of an image in a prescribed region. The dither pattern includes a plurality of dot groups stacked, each dot group including dots arranged in a direction where a printing element moves relative to a recording medium, and the beginning of each group is set off by one or more dots in the movement direction, and a halftone image including the pixels is recorded, using variations in density, with the growth order going either from the first dot of the uppermost row of the dither pattern to the last dot of the lowermost row, or from the first dot of the lowermost row to the last dot of the uppermost row.

主权项

1. A color image processing device using a dither pattern of blocks each composed of a plurality of dots representing the gradations each pixel of an image in a prescribed region,
wherein the dither pattern is composed of a plurality of dot groups stacked, each dot group composed of dots arranged in a direction where a printing element moves relative to a recording medium, and the beginning of each group is set off by one or more dots in the movement direction; and a halftone image comprising the pixels is recorded, using variations in density, with the growth order going either from the first dot of the uppermost row of the dither pattern to the last dot of the lowermost row, or from the first dot of the lowermost row to the last dot of the uppermost row.