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Image-Fourier-transform

于 2012-03-01 发布文件大小:737KB

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下载积分: 1 下载次数: 43

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代码说明：

图像傅里叶变换，进行加密以及全息图。对初学者可以摸索学习(Image Fourier transform, encryption, and a hologram. Can explore to learn for beginners)

文件列表：

Image Fourier transform
.......................\addnoise.m,369,2008-05-08
.......................\bianhuan.m,460,2008-05-10

.......................\dakai.m,148,2008-05-08
.......................\fresnel.m,304,2008-05-04
.......................\fresnell.m,423,2008-04-27
.......................\fuliye.m,1225,2008-04-27
.......................\hfjiemi.m,1077,2008-05-09
.......................\hfjm.m,994,2008-05-09

.......................\jiami.m,990,2008-05-09
.......................\jiamisuanfa.m,42,2008-05-05
.......................\jiemi.m,987,2008-05-09
.......................\lingcun.m,41,2008-05-04
.......................\quanxi.fig,1211,2008-04-28
.......................\quanxi.m,2875,2008-04-28
.......................\quanxizaixian.m,2986,2008-04-29
.......................\suoyin.m,1051,2008-05-08
.......................\suoyishuchu.m,355,2008-05-08
.......................\tiaoshi.m,460,2008-04-29
.......................\tuxiangsuoyin.m,358,2008-05-08
.......................\wo.m,1001,2008-04-29

.......................\zaixian.m,627,2008-05-10
.......................\zaixiantiaoshi.m,124,2008-04-29
.......................\zhizuo.fig,3857,2008-05-08
.......................\zhizuo.m,5440,2008-05-04

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指纹图像因设备、图像增强处理等原因造成的纹线断裂会产生伪特征点,会对指纹识别产生负面影响。在结合传统方法优点的同时,针对间距大、方向偏移小和间距大、方向偏移大的断裂情况,本文设计出窗口制约法和改进的窗口制约法2 种不同的修复方法。实验结果表明,该方法使修复更加全面、完整,提高了伪特征点去除率,易于编程实现,对细化指纹图像的断裂有很好的修复效果。(The broken ridge fingerprint image processing equipment, image enhancement and other causes will generate pseudo-feature points to be a negative impact on fingerprint identification. While combining the traditional method has the advantage, for the spacing, direction offset small spacing, direction offset large fracture situation, this design window constraints window method and the improved two kinds of constraints, different repair methods. Experimental results show the method to fix a more comprehensive and complete removal of pseudo-feature points, easy to program, well thinned fingerprint image fracture repair.)

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