GAMMA CORRECTION METHOD FOR ERROR DIFFUSION

摘要

An image processing system includes a printing device having a printing resolution, and a processor. The processor is configured to receive input image data comprising an input tone, and to dither the input image data at a halftone resolution, wherein the halftone resolution is less than the printing resolution of the printing device. The processor is further configured to perform multi-thresholding of the image data to identify a multi-pixel output tone level, and to generate output image data comprising the multi-pixel output tone level. The output image data is printed at the printing resolution. The multi-thresholding of the image data may further include an error diffusion algorithm providing gamma correction of the input tone.