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介绍一种实用的二维条码识别算法。首先探讨了二维条码的定位与分割算法,利用Hough变换与Sobel边缘检测把条码图像从原始采集的图像中有效地分割出来 然后分析了条码图像经过光学系统的噪声模型,提出了一种计算点扩展函数标准方差的算法 采用Flourier变换自适应地选取阈值去除噪声导致的无效边界,从而得到条码的基本模块。实验结果表明,该算法具有很好的抗噪性,提高了二维条码的识别率。
-A practical two-dimensional barcode recognition algorit
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介绍一种实用的二维条码识别算法。首先探讨了二维条码的定位与分割算法,利用Hough变换与Sobel边缘检测把条码图像从原始采集的图像中有效地分割出来 然后分析了条码图像经过光学系统的噪声模型,提出了一种计算点扩展函数标准方差的算法 采用Flourier变换自适应地选取阈值去除噪声导致的无效边界,从而得到条码的基本模块。实验结果表明,该算法具有很好的抗噪性,提高了二维条码的识别率。
-A practical two-dimensional barcode recognition algorit
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We propose an algorithm for facial expression recognition which can classify the given image into one of the seven basic facial expression categories (happiness, sadness, fear, surprise, anger, disgust and neutral). PCA is used for dimensionality red
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本程序采用一种基于垂直Sobel算子检测边缘和投影法的车牌定位方法,根据车牌区域竖直纹理突出的特点,利用Sobel垂直算子提取边缘,然后投影得到车牌的水平投影图,利用水平投影图分割出车牌,再运用膨胀运算进行车牌垂直定位。利用旋转投影法寻找车牌倾斜角度,然后用双线性插值进行车牌图像倾斜矫正。对经过精定位的车牌利用垂直投影法,找出各个字符的中心点,根据字符中心点位置进行切割。同时将切割出来的图片与数据库中的每张模板图片进行减法运算,计算该图片与模板的均方误差,其均方误差最小的模板即为识别出的字符。-
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用HOUGH检测直线的时候是两个未知量,因为轴半径和相角可以确定一条直
线,在HOUGH域出现累计最大点就可能是原域中的直线。现在回到圆的检测
上来,确定一个圆需要什么:X坐标,Y坐标,半径三个未知量吧,好了,现在,
你做一个三维空间的HOUGH域,以这三个未知量作为三个轴,现在按照一定步长
进行三重循环,在最内层循环是这样的,X,Y 确定,以不同的半径进行搜索,如
果你的X,Y刚好就是实际图像的X,Y处,半径又搜索到实际真实的半径-The HOUGH detect stra
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给予OPENCV的关于RGB检测程序,能识别图像中任何一点的的像素值-OPENCV given for RGB detection procedures, able to identify any point of the pixel value of the image
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In this code, I present a face detection system that attempts to recognize faces using the Skin Segmentation Technique. This code is intended to provide an insight into developing a face detection system using Skin Detection and hopefully gives a go
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harris角点检测,并且实现两幅图像特征点的匹配,最终完成图像的拼接-harris corner detection, and realize two image feature point matching, the final completion of image stitching
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harris角检测方法,从图像中提取兴趣点的程序算法-harris corner detection methods to extract an image point of interest program algorithm
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有循环检测,周期性检测,中介真值程度度量,基于中介真值程度度量的图像分割复化三点Gauss-lengend公式求pi。- There are cycle detection, periodic testing, The true extent of the value of the intermediary measure, measure the true extent of the agency based on the value of image segmentation Complex
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基于VS2010+opencv2.4.7编写的sift算法,用于图片或视频特征点检测及图片匹配-Sift algorithm based on VS2010+ opencv2.4.7 write for images or video feature point detection and image matching
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Harris Corner Corner detection procedure, the detection of the angular point on image, and the red circle in the image
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该算法基于opencv库,能够实现图像ORB角点检测,并实现图像匹配(ORB image key point detection algorithm, fast and efficient implementation of image feature point detection and matching)
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数字图像二值化,canny边缘检测并提取轮廓进行椭圆拟合找出质心点(Two values of digital image, Canny edge detection and extraction of contour by ellipse fitting to find the centroid point)
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利用线性Hough变换和Canny边缘探测得到的所输入虹膜图像上各点的坐标,最终通过归一化产生一个虹膜的特征模板。(The coordinates of each point on the iris image are obtained by using the linear Hough transform and the Canny edge detection. Finally, a feature template of the iris is generated by the norma
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