基于相关性和小波变换的纹理合成算法

提出一种快速的纹理合成方法,采用小波变换对原样图分解,只在分解后的低频部分进行最佳匹配块的搜索,使合成速度得到了很大提高;同时,在合成过程中利用邻域块的相关性,把搜索范围限制在当前块的邻域,避免了对样图的穷尽搜索。结果表明,该算法在很大程度上减少了合成时间。

A Texture Synthesis Algorithum Based on Coherence and Wavelet Transform

We present a fast texture synthsis method,the wavelet composition to the sample is carried on,and then the best matching patch is only searched in the low frequency part,which enable that the synthesis velocity is enhanced in great degree.Meanwhile,in the synthesis course the algorithm uses the neighboring patches' coherence and limits the searching space to the neighborhood of the current patch.Therefore,avoided exhausting searching in the sample.Experimental results show that the synthesis time is decreas...