传统分形图案的纹样在表现实际景物特征方面存在不足.针对这一问题,提出了一种基于纹理渲染的分形图案设计概念和技术,并改进了Wei的点匹配纹理合成算法,即首先用2维自相关函数先分析纹理的构成和分布,然后确定合成的L形邻域大小,最后将分形图案作为结构约束,并在HSL颜色空间上控制色彩渲染,实现了结构约束的纹理合成,并通过选择两个特殊的分形数集来进行实验,生成了既有样图纹理特征,又能控制色彩变化的分形图案.

Traditional fractal pattern design has some disadvantages such as being lack of the ability for describing basic cell of pattern and unable to effectively reflect the characters of real scenery. In order to solve the problems, we present a novel pattern design technology of fractal geometry based on image texture rendering. First we improve the texture synthesis algorithm of Wei by using two-dimensional autocorrelation function to analyze the structure and distribution of the texture first, and then determine the size of L neighborhood. Second several special fractal sets are adopted and HSL color space is chosen, so that the fractal structure can be used to manipulate the texture synthesis. The experiments have shown that using the novel technology patterns with different style, color, texture characteristic can be generated quickly.