| 摘要 |
<p>In order to increase decoding speed of two-dimensionally encoded facsimile data, changing pixels a0, a1, a2 and b1 (defined by CCITT) on a decoding and reference lines are detected, and the address of b1 is stored into a reference line address memory. The address of b1 is compared with the address of a1 during the vertical mode, and if a1 > b1, the address of a1 is stored into the reference line address memory. During the horizontal mode, the addresses of b1 and a2 are compared. If a2 > b1, the address of a2 is stored into the reference line address memory.</p> |
