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Description: Hough变换用来在图象中查找直线。它的原理是：假设有一条与原点距离为s，方向角为θ的一条直线，直线上的每一点都满足方程 s=x*Cosθ+y*Sinθ，利用这个事实，我们可以找出某条直线来。这段程序，用来找出图象中最长的直线。-Hough Transformation is used for searching lines in an image . Here is the principle:
Assume there is a line whoes direction is \"sita\" , and the distance from the origin to this line is s. So each point in this line satisfies the equation : s=x*Cos(sita) + y*Sin(sita) . We can find out the lines based on this fact.
And this programme is to find out the longest line in the image.
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Size: 2012 |
Author: doctorsuo |
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Description: Hough变换用来在图象中查找直线。它的原理是：假设有一条与原点距离为s，方向角为θ的一条直线，直线上的每一点都满足方程 s=x*Cosθ+y*Sinθ，利用这个事实，我们可以找出某条直线来。这段程序，用来找出图象中最长的直线。-Hough Transformation is used for searching lines in an image . Here is the principle:
Assume there is a line whoes direction is "sita" , and the distance from the origin to this line is s. So each point in this line satisfies the equation : s=x*Cos(sita)+ y*Sin(sita) . We can find out the lines based on this fact.
And this programme is to find out the longest line in the image.
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Size: 2048 |
Author: doctorsuo |
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Description: 这个程序可以识别图像中的线段或者直线，算法采用哈夫变换，将直线变换为另一个坐标系中的点，进而完成识别。-this procedure can identify the image or straight line segments, Hough transform algorithm. Linear transformation of coordinate system to another's point, thus completing the identification.
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Size: 1024 |
Author: bodiz2002 |
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Description: 直线Hough变换利用图像空间和Hough参数空间的点－线对偶性，把图像空间中的检测问题转换到参数空间。通过在参数空间里进行简单的累加统计，然后在Hough参数空间寻找累加器峰值的方法检测直线。-Hough transform space and the use of images Hough parameter space of point-line duality, transmit images of the space problem of detecting the change of the parameter space. Through the parameter space for a simple cumulative statistics, then Hough parameter space for accumulator peak detected straight.
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Size: 1024 |
Author: |
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Description: 不用多说了，和Hogh搭配使用检测直线的程序
直线Hough变换利用图像空间和Hough参数空间的点－线对偶性，把图像空间中的检测问题转换到参数空间。通过在参数空间里进行简单的累加统计，然后在Hough参数空间寻找累加器峰值的方法检测直线。-Needless to say, Hogh mix and the use of linear detection procedures Hough transform space and the use of images Hough parameter space The point-line duality, the image space detection switch to the parameter space. Through the parameter space for a simple cumulative statistics, then Hough parameter space for accumulator peak detected straight.
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Size: 1024 |
Author: |
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Description: 好用地 matlab版本地 用hough变换进行直线提取地程序，提取最长地直线，以后会改进，可以提取累计矩阵中，局部峰值点地直线！-good land use Matlab version hough transform line extraction procedures. to extract the longest line, it will improve, can extract accumulated matrix, partial to the peak point straight!
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Size: 1024 |
Author: Cong Yang |
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Description: 设定循环检测次数，这里设为只循环一次
tip_l=1
设定hough变换的遍历步径
xl=30 ％设定线段起始点
xr=60 ％设定线段终止点-Set the number of cycle detection, here is set to cycle only once tip_l = 1 set hough transform Path traversal step xl = 30 set line segment starting point xr = 60 set line segment termination point
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Size: 1024 |
Author: 宗常进 |
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Description: Hough变换
BOOL Hough(HWND hWnd){
//定义一个自己的直线结构
typedef struct{
int topx //最高点的x坐标
int topy //最高点的y坐标
int botx //最低点的x坐标
int boty //最低点的y坐标
}MYLINE
DWORD BufSize
LPBITMAPINFOHEADER lpImgData
LPSTR lpPtr
HDC hDc
LONG x,y
long i,maxd
int k
int Dist,Alpha
HGLOBAL hDistAlpha,hMyLine
int *lpDistAlpha
MYLINE *lpMyLine,*TempLine,MaxdLine
static LOGPEN rlp={PS_SOLID,1,1,RGB(255,0,0)}
HPEN rhp
//我们处理的实际上是256级灰度图，不过只用到了0和255两种颜色。
if( NumColors!=256){
MessageBox(hWnd,"Must be a mono bitmap with grayscale palette!",
"Error Message",MB_OK|MB_ICONEXCLAMATION)
return FALSE
}-Hough transform BOOL Hough (HWND hWnd) (//define a linear structure of its own typedef struct (int topx// the highest point of the x coordinates int topy// the highest point of the y coordinates int botx// the lowest point of the x coordinates int boty// lowest point of the y coordinates) MYLINE DWORD BufSize LPBITMAPINFOHEADER lpImgData LPSTR lpPtr HDC hDc LONG x, y long i, maxd int k int Dist, Alpha HGLOBAL hDistAlpha, hMyLine int* lpDistAlpha MYLINE* lpMyLine,* TempLine, MaxdLine static LOGPEN rlp = ( PS_SOLID, 1,1, RGB (255,0,0)) HPEN rhp// We are dealing with is actually 256 grayscale, but only uses two colors 0 and 255. if (NumColors! = 256) (MessageBox (hWnd,
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Size: 2048 |
Author: sunrise |
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Description: Hough变换实现检测圆的程序，对圆形的突变点敏感，可以实现边缘图像中圆的检测。-Hough transform circle detection procedure, the mutation point of a circular sensitive, you can realize edge detection image circle.
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Size: 2048 |
Author: 无梦 |
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Description: 函数名称：
* HoughDIB()
*
* 参数:
* LPSTR lpDIBBits - 指向源DIB图像指针
* LONG lWidth - 源图像宽度（象素数，必须是4的倍数）
* LONG lHeight - 源图像高度（象素数）
* 返回值:
* BOOL - 运算成功返回TRUE，否则返回FALSE。
*
* 说明:
* 该函数用于对检测图像中的平行直线。如果图像中有两条平行的直线，则将这两条平行直线
* 提取出来。
*
* 要求目标图像为只有0和255两个灰度值的灰度图像。-Function name:* HoughDIB ()** parameters:* LPSTR lpDIBBits- point to the source DIB image pointer* LONG lWidth- source image width (pixel number 4 must be in multiples of)* LONG lHeight- source image height (pixel number)* return value:* BOOL- operation successful return TRUE, otherwise return FALSE.** Description:* The function used to detect images of parallel straight lines. If the image has two parallel straight lines, they will be two parallel straight-line* extracted.** Request object image for only 0 and 255, two gray value of gray-scale image.
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Size: 12288 |
Author: luyc |
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Description: Hough变换对圆的检测
Hough变换的基本原理在于，利用点与线的对偶性，将图像空间的线条变为参数空间的聚集点，从而检测给定图像是否存在给定性质的曲线。
-Hough transform for circle detection Hough transform basic principle is that the use of point and line duality, the image space into a parameter space of lines gather, thus detecting the existence of a given image given the nature of the curve.
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Size: 13312 |
Author: huangyusheng |
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Description: 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 algorithms. First of all two-dimensional bar code of the positioning and segmentation algorithm using Hough Transform and Sobel edge detection of the bar code images collected from the original image to effectively separate and then analyzes the barcode image through the optical system of the noise model, put forward a Calculation of point spread function of standard deviation of the algorithm uses Flourier transform adaptively select the threshold to remove noise caused by invalid border, bar code and thus be the basic module. Experimental results show that the algorithm has good noise immunity, improved two-dimensional bar code recognition rate.
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Size: 1024 |
Author: 黄新 |
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Description: hough 变换实现直线检测
在噪声服从高斯分布的背景中构造信噪比为2、长度为34像素的目标线段；在找出线段所在直线后，在采用固定长线段滑动的方法，确定线段的起始点，最终确定线段的确切位置。-hough transform line detection
in the noise to obey Gaussian distribution of the background-noise ratio for the structure 2, with a length of 34 pixels of the target segment at to find out where the straight line segment after the introduction of fixed long-term method of sliding paragraph to determine the segment of starting point, and ultimately determine the exact location of line segments.
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Size: 1024 |
Author: fisher |
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Description: 针对多椭圆检测问题提出了一种快速随机检测算法。该算法利用在图像中随机采样到的一个边缘点和
局部搜索到的两个边缘点以及这三个点的邻域信息确定候选椭圆,再将候选椭圆变换为对应圆,通过确认真圆来确
认真椭圆。在确定候选椭圆时,最大限度地减少随机采样点数‰ 剔除更多的非椭圆点,降低了无效采样,减少了无效
计算。数值实验结果表明:该算法具有良好的鲁棒性,其检测速度比同类算法快-Ellipse detection problem for many a fast random detection algorithm. The algorithm uses random sampling in the image of an edge point and the local search to the two edge points, as well as the three-point neighborhood information to determine the candidate ellipse, and then transformed into the corresponding elliptical candidate won, through the identification of real yen to confirm really elliptical. In determining when a candidate ellipse, to minimize random sampling points ‰ remove more non-oval points, reducing invalid sampling, to reduce the calculation invalid. Numerical experimental results show that: the algorithm has good robustness, and its detection faster than similar algorithms quickly
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Size: 526336 |
Author: 刘镖峰 |
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Description: 对于较粗的样本点集 hough 算法是不可能做到检测全部直线的. 另一方面 hough 还会测出许多不存在的直线. 在应用的时候只能根据需要自己标定 精度.
以下是我在MATLAB下开发的hough函数 输入一个灰度图形矩阵, 返回 最长直线斜率. 用来做图形倾斜校正的. 希望贴出来还能有点用吧~-For a sample point set coarse algorithm hough it is not possible to do all the straight line detection. Hough will be measured on the other hand, much of the straight line does not exist. At a time when the application can only be based on the needs of calibration accuracy of their own. The following is in my MATLAB hough function developed under a gray-scale graphics input matrix, the slope of a straight line back up. to make graphics tilt correction. I hope it can paste a bit with it ~
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Size: 1024 |
Author: paul |
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Description: 典型的角度检测算法是进行Hough变换后寻找最长直线的倾斜角度．一般情况
下，待处理图象中未必有明显的较长直线．甚至存在一些对图像进行正确检测的长直线干扰 文
章介绍了一种基于统计考虑的数据分析思路，以期在基于Hough变换的角度检测算法上取得更高
的准确性。-The perspective of a typical detection algorithm is the Hough transform to find the longest straight line after the tilt angle. Under normal circumstances, to be processed image may not be obvious in a long line. Even some of the correct image of the long straight-line interference detection article presents an approach based on statistical data analysis to consider ideas, with a view to the point of view based on the Hough transform detection algorithm to achieve higher accuracy.
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Size: 182272 |
Author: liyu |
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Description: Hough变换是图像处理中从图像中识别几何形状的基本方法之一。Hough变换的基本原理在于利用点与线的对偶性，将原始图像空间的给定的曲线通过曲线表达形式变为参数空间的一个点。这样就把原始图像中给定曲线的检测问题转化为寻找参数空间中的峰值问题。也即把检测整体特性转化为检测局部特性。比如直线、椭圆、圆、弧线等。
-Hough transform image processing image recognition from the basic geometry of one of the methods. The basic principle of Hough transform is to use point and line duality, the original image space, the curve of a given expression through the curve into a parameter space of a point. This put the original image in the detection of a given curve is transformed into a parameter space to find problems in the peaks. That is to detect the overall characteristics of transformation for the detection of local features. For example a straight line, ellipse, circle, arc and so on.
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Size: 24576 |
Author: 王超 |
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Description: Hough变换是图像处理中从图像中识别几何形状的基本方法之一。Hough变换的基本原理在于利用点与线的对偶性，将原始图像空间的给定的曲线通过曲线表达形式变为参数空间的一个点。这样就把原始图像中给定曲线的检测问题转化为寻找参数空间中的峰值问题。也即把检测整体特性转化为检测局部特性。比如直线、椭圆、圆、弧线等-Hough transform is image processing image recognition from the basic geometry of one of the methods. The basic principle of Hough transform is to use the duality of points and lines, the original image space, the curve given expression through the curve of the parameter space into a point. This put the original image in the detection of a given curve is transformed into a peak in the parameter space to find the problem. That is the test for the detection of the overall features into local features. Such as lines, ellipses, circles, arcs, etc.
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Size: 148480 |
Author: 丁海龙 |
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Description: 說明如何經由hough transform來找到vanishing point有最佳演算法虛擬碼的提供-How by the hough transform to find the vanishing point with a virtual code to provide the best algorithm
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Size: 553984 |
Author: yohow |
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Description: 1.从图像中识别几何形状的基本方法；基本原理是在于利用点与线的对偶性，将原始图像空间给定的曲线通过曲线表达形式变为参数空间的一个点，这样就把原始图像中给定的检测问题转化为寻找参数空间的峰值问题。
2.基于Gabor变换的人眼检测MATLAB实现。
3.基于Radon的车牌矫正方法。
4.基于模型函数headata产生不同大小的头模型数据。
5.基于函数wdcbm2()设置图像分层阈值压缩参数，实现图像压缩(The basic method of identifying geometry from the image; the basic principle is to use point and line duality, the original image space curve given expression through the curve into a parameter space of a point, so the peak detection problem is given in the original image is transformed into searching the parameter space.)
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Size: 4096 |
Author: LD1
|
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