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均值滤波和中值滤波.doc
均值滤波和中值滤波
图像是一种重要的信息源,通过图像处理可以帮助人们了解信息的内涵,然而在图像使用和传输过程中,不可避免会受到噪声的干扰,因此为了恢复原始图像,达到好的视觉效果,需要对图像进行滤波操作。根据噪声种类不同,可以采用不同的滤波方法,均值滤波是典型的线性滤波算法,能够有效滤波图像中的加性噪声,而中值滤波器是能够有效滤除脉冲噪声的非线性滤波器,但传统中值滤波去脉冲噪声的性能受滤波窗口尺寸的影响较大, 在抑制图像噪声和保护细节两方面存在矛盾。本文首先对不同均值滤波器在处理不同噪声方面的优缺点进行了分析,然后分别用中值滤波器和自适应中值滤波器对被椒盐噪声污染的图像进行了滤波操作,发现自适应中值滤波方法不仅可以有效滤波椒盐噪声,同时还可以有效地克服中值滤波器造成图像边缘模糊的缺点。(Mean filtering and median filtering)
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- 积分:1
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carplate
首先对车牌识别系统的现状和已有的技术进行深入的研究,然后开发出一个基于 Python 的车牌识别系统,文中先对车辆图像进行高斯去噪、灰度化和边缘检测等预处理方法,然后用颜色特征和形态特征相结合的方法来确定车牌位置,用彩色分割法来完成车牌分割,最后,运用 SVM 分类训练器完成字符识别并使用Python 软件环境进行车牌识别的仿真实验。(License plate recognition based on SVM)
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DrawArcTest
5.在面板中画圆弧的程序,帮助你画出你想要的圆弧。(5 arc in the panel painting program to help you draw your desired arc.)
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hrrp_1
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lvbo
通过小波阈值去噪,选取db5小波进行6层分解,对心音信号进行去噪(By wavelet thresholding, select db5 wavelet decomposition of six layers of the heart sound signal de-noising)
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图像融合算法
针对电气设备同一场景的红外与可见光图像间一致特征难以提取和匹配的问题,提出了一种基于斜率一致性的配准方法。首先通过数学形态学方法分别提取红外与可见光图像的边缘,得到粗边缘图像;然后通过SURF算法提取两幅边缘图像的特征点,根据正确的匹配点对之间斜率一致性的先验知识,进行特征点匹配;最后通过最小二乘法求得仿射变换模型参数并实现两幅图像的配准。实验结果表明,该方法有效提高了匹配点对的正确率,能够对电气设备红外和可见光图像实现高精度的配准。(In this paper, a method based on slope consistency is proposed to solve the problem that the uniform features of infrared and visible images are difficult to extract and match. Firstly, the edges of infrared and visible images were extracted by mathematical morphology, and the rough edge images were obtained. Then, the feature points of two edge images were extracted by SURF algorithm, and the priori knowledge of slope consistency was obtained according to the correct matching point, and the feature points were matched. Finally, the model parameters of affine transformation are obtained by least square method and the registration of two images is realized. The experimental results show that this method can effectively improve the accuracy of matching points, and can realize high precision registration of infrared and visible images of electrical equipment.)
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双瞳
两片镜子拼成的六边形拼接镜模型~~~~~~~(A hexagonal splicing mirror model composed of two mirrors~~~~~~~~~)
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WavTF
连续小波变换寻找脊线,用在信号处理、图像处理等方面(MATLAB)(Continuous wavelet transform for ridge line(MATLAB))
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