A facsimile compression technique that codes distances between changing pixels on two adjacent scan lines.
一种传真压缩技术，即对两个相邻扫描线上变化象素之间的距离进行编码。
More complex regions can be stored internally in GDI as a series of scan lines derived from the original definition of the region.
在 GDI 内部大多复杂区域可以被存储为一系列来源于最初定义的区域的扫描线。
Scan lines can only be processed in horizontal manner, with the use of geometric transformations; it can make deformation done in any direction.
针对水平扫描线直线路径变形的基础上，提出使用几何旋转变换来实现任意方向的变形。
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