主权项 |
1. An image processing apparatus comprising:
a processor configured to:
perform a halftone process on image data to generate processed image data, the image data including a plurality of tone values of a plurality of pixels, the processed image data including a plurality of dot values of the plurality of pixels, each of the plurality of dot values indicating dot formation status; andsupply the processed image data to a printing execution unit, wherein, to perform the halftone process, the processor is further configured to:
calculate a corrected tone value of a target pixel using a tone value of the target pixel and an error value of a previously processed pixel;determine a dot value of the target pixel by comparing the corrected tone value of the target pixel with a threshold value;calculate an error value of the target pixel using the corrected tone value of the target pixel and a first density value when the dot value of the target pixel indicates to form a dot and the dot to be formed corresponding to the dot value of the target pixel is a first dot, the first dot being an isolated dot; andcalculate an error value of the target pixel using the corrected tone value of the target pixel and a second density value when the dot value of the target pixel indicates to form a dot and the dot to be formed corresponding to the dot value of the target pixel is a second dot, the second dot being a dot to be formed at a particular location in consecutive dots. |