交互式复杂纹理图像区块间互相关算法  

Cross Correlation Algorithm of Interactive Complex Texture Image Blocks

作　　者：李东航 邓鸿涛 LI Dong-hang;DENG Hong-tao(Wuhan College,Wuhan Hubei 430070,China;Hubei University,Wuhan Hubei 430062,China)

机构地区：[1]武汉学院,湖北武汉430070 [2]湖北大学,湖北武汉430062

出　　处：《计算机仿真》2021年第8期309-313,共5页Computer Simulation

基　　金：国风楚韵:“荆楚画派”艺术论(201911401202001);湖北省委宣传部社科基金资助项目(201911401202001)。

摘　　要：传统纹理图像处理算法无法检测出多方向上图像重要信息,空间分布信息也会出现部分丢失,导致图像区块间的相关系数无法得到准确描述。提出交互式复杂纹理图像区块间互相关算法。选定图像中心点划分互相关区块,利用小波变换的平滑算法平滑不同图像区块,去除由噪声产生的极大值点,将多个边缘信息匹配并连接在一起,获取准确边缘信息。利用互相关算法计算处理后的区块系数,通过两个区块间互相关值与自相关值的偏差程度,准确描述区块间的互相关系数,实现交互式复杂纹理图像区块间互相关算法。仿真结果表明,除了图像区块自身相似偏差为0%外,相同文字图像区块之间的相似偏差为2.2%,不同文字图像区块的相似偏差均在21.4%以上。实验结果验证所提方法能够精准描述复杂纹理图像不同区块之间的相关程度,应用效果较好。The deficiency of important information of a multi-directional image in traditional texture image processing algorithms results in incomplete spatial distribution information and the wrong number of phase relations between image blocks.Therefore,this paper proposes an interactive cross-correlation algorithm between complex texture image blocks.The center of the image was selected to divide the cross-correlation blocks.The smoothing algorithm of wavelet transform was used to smooth different image blocks and eliminate the maximum points from noise.Multiple edge information was matched and connected to obtain accurate edge information.Based on the cross-correlation algorithm,the processed block coefficients were calculated.According to the deviation degree between the cross-correlation value and the autocorrelation value between the two blocks,the cross-correlation number between the blocks was accurately described.Eventually,the interactive cross-correlation algorithm between the complex texture image blocks was completed.The simulation results show that the similarity deviation of image blocks,the similarity deviation between the same text image blocks and different text image blocks are respectively,0%,2.2%,and 21.4%.Experimental results show that the method can accurately describe the correlation degree between different blocks of a complex texture image,and has a good application effect.

关 键 词：复杂纹理图像 互相关算法 小波变换算法 平滑算法 图像预处理 

分 类 号：TP324.3[自动化与计算机技术—计算机系统结构]