提出了实现图象几何变换的迭代函数系统(IFS)参数修改法，导出了实现图象平移、旋转和缩放的IFS参数变换公式。
A novel image geometry transformation method based on modifying IFS coefficients is proposed. Formulas for modifying IFS parameters to translate, to rotate and to dilate images are presented.
目前迭代函数系统中的变换多限于仿射变换，而仿射迭代函数系统对于区域的任意四边形不规则剖分情形是不能实现的。
At present, the transform in IFS is limit to affine transform. However, affine IFS is unable to do anything with the anomalous dissection on discretionary quadrangle area.
分析了基于部分迭代函数系统（PIFS）的传统分形图像压缩编码中8 种对称旋转变换对编码性能的影响；
The effects of 8 isometry transforms used in PIFS based fractal image coding on performance are discussed.
应用推荐