公开(公告)号：US20120218573A1

公开(公告)日：2012-08-30

申请号：US13371266

申请日：2012-02-10

申请人： Shuji Otsuka ,  Ryuichi Tsuji ,  Keita Maeza ,  Kazusei Obikawa ,  Satoru Shibata

发明人： Shuji Otsuka ,  Ryuichi Tsuji ,  Keita Maeza ,  Kazusei Obikawa ,  Satoru Shibata

IPC分类号： H04N1/60

CPC分类号： H04N1/4052 ,  H04N1/52

摘要： An image processing apparatus includes a plurality of cores that carry out binarization processes while shifting a target pixel from the first pixel in a processing line in order toward the last pixel in the processing line in accordance with a diffusion of error that takes unprocessed pixels surrounding the target pixel including the pixels of the following line of the processing line as a diffusion range; of the plurality of cores, the core that processes the following line carries out the binarization process in order while delaying the target pixel at least by an amount equivalent to the diffusion range relative to the target pixel of the core that processes the previous line. Accordingly, the lines can be processed in parallel while reflecting the error appropriately on the unprocessed pixels, and thus the binarization process using error diffusion can be carried out more quickly.

摘要翻译： 图像处理装置包括多个核，其执行二值化处理，同时根据处理线中的最后一个像素偏移来自处理行中的第一像素的目标像素，从而根据错误的扩散，该漫反射扩散使得处理线周围的未处理像素 包括处理线的下一行的像素的目标像素作为扩散范围; 处理以下行的核心依次执行二值化处理，同时延迟目标像素至少相当于处理前一行的核心的目标像素的扩散范围的量。 因此，可以并行处理这些行，同时在未处理的像素上适当地反映错误，因此可以更快地执行使用误差扩散的二值化处理。