| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To also suppress granularity deterioration caused by overlapping of dots while suppressing image density variations caused by a conveyance error or the like of a recording medium when recording an image according to a multi-path system. <P>SOLUTION: Multi-valued image data 501 corresponding to a pixel area are divided into first scanning multi-valued data 502, first and second scanning common multi-valued data 503, and second scanning multi-valued data 504. Quantization processing is executed on each of the multi-valued data 502 to 504 to generate first scanning quantized data 505, first and second scanning common quantized data 506, and second scanning quantized data 507. After that, these pieces of quantized data 505 to 507 are combined for each scanning to generate first scanning combined quantized data 508 and second scanning combined quantized data 509. Accordingly, the amount of pixels (the amount of overlapping dots) where dots are recorded every time when scanning of two or more times are carried out is controlled, and while suppressing the image density variations, granularity is held to a low level. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
