Search - Radius point

Search - Radius point - List

[Special Effects] testhoughcircle DL : 0: opencv，检测图像中的圆，并且检测其圆心和半径的一个小程序。-opencv, detection of the image circle, and the detection of its center point and radius of a small program.
Date : 2025-12-31 Size : 1.37mb User : 晓晓
[Special Effects] mySnake-2 DL : 0: 基于动态轮廓模型的虹膜定位.在数字图像中虹膜位置的有效定位是虹膜识别的关键问题。用一种基于主动轮廓线模型的方法定位虹膜的位置，先用灰度投影法检测出瞳孔内的一点作为瞳孔的伪圆心，该圆心只要能落在瞳孔内部即可。然后以该伪圆心为中心，在其周围等角度间隔地取N个点作为初始的snake基准点，按照snake 的运行机制不断进化，直到虹膜的内边界为止。最后，计算进化后的snake形心和snake上的控制点与该形心的距离，取其平均值作为瞳孔的半径，动态轮廓模型的形心作为瞳孔的圆心，即可准确定位出虹膜内边界的位置。实验表明，与常见的定位方法相比，文中的方法速度快、精度高，而且，对瞳孔初始的伪圆心要求不高，鲁棒性更强。-Iris contour model based on dynamic positioning. In the digital image in the position of the iris iris recognition and effective positioning is the key issue. Using a model based on active contour method of positioning the iris position, the first gray projection method used to detect a point within the pupil as a pupil of the pseudo-center of a circle, the center of a circle can be as long as it falls within the pupil. And then the pseudo-center of a circle centered around the angle of its N-point interval to take the snake as the initial reference point, in accordance with operating mechanism evolving snake, until the iris until the inner boundary. Finally, the calculation of the evolution of the snake-shaped after the heart and snake on the control point with the centroid distance, whichever is the average radius of the pupil as a dynamic contour model of the centroid as the center of the pupil can accurately locate out of the iris inner boundary position. Experiments show that, com
Date : 2025-12-31 Size : 281kb User : 318
[Special Effects] midcircle1 DL : 0: 由给定的圆心和半径在屏幕上点亮像素点画圆-From a given center point and radius of the pixels on the screen lit Circle
Date : 2025-12-31 Size : 1kb User : 刘志江
[Special Effects] figure4_15 DL : 0: 对一幅图像进行各种截止频率点半径的二阶BLPF 滤波的结果-On an image point of radius for various cut-off frequency filter the results of the second order BLPF
Date : 2025-12-31 Size : 53kb User : cnn
[Special Effects] circle DL : 0: 根据输入的三点判断此三点能不能构成一个圆。若能，则输出圆心坐标和半径；若不能，则提示出错信息。-The input of the three judges that this point can not form a circle. If, then the center coordinates and radius of the output if not, then prompts an error message.
Date : 2025-12-31 Size : 1kb User : wangran
[Special Effects] kuangjia DL : 0: 图像处理的界面，有预处理、边缘提取、角点监测、半径测量等-Interface, image processing, a preprocessing, edge detection, corner point detection, measurement radius
Date : 2025-12-31 Size : 3.76mb User : dezhaowu
[Special Effects] Circle DL : 0: 采集一系列点的坐标，通过这些点来拟合出一个圆，算出圆的圆心和半径-Collected a series of point coordinates, and through these points to fit a circle to calculate the circle s center and radius
Date : 2025-12-31 Size : 2.21mb User : 王加稳
[Special Effects] lbp DL : 0: 将灰度图转化为lbp图谱，邻域选择为圆域，半径为r，邻域内点的数目为p。-Lbp map will be converted to grayscale, neighborhood circle domain, the number of radius r, neighborhood point is p.
Date : 2025-12-31 Size : 1kb User : 元晨
[Special Effects] finspancurve DL : 0: 可以将图形图像，转换成灰度图像，根据灰度图像识别出图像内的高曲率点，以及图形的极值点，得出极值点曲率以及曲率半径-a graphic image can be converted into a grayscale image, a grayscale image according to the high curvature points identified within the image, and the extreme point pattern, derived extrema of curvature and the radius of curvature
Date : 2025-12-31 Size : 2.77mb User : 周肖阳
[Special Effects] finspancurve DL : 0: 可以将图形图像，转换成灰度图像，根据灰度图像识别出图像内的高曲率点，以及图形的极值点，得出极值点曲率以及曲率半径-a graphic image can be converted into a grayscale image, a grayscale image according to the high curvature points identified within the image, and the extreme point pattern, derived extrema of curvature and the radius of curvature
Date : 2025-12-31 Size : 2.77mb User : 周肖阳
[Special Effects] fxIDW DL : 0: 反距离权重法，从采样点得到目标图像矩阵，可调半径及幂指数参数；通过8邻点相似特性，运算点减少9倍；- Inverse distance weighting method, the sampling point to obtain the target image matrix, an adjustable radius and exponent parameters o by 8 points similar characteristics, operation point reduction 9 times
Date : 2025-12-31 Size : 1kb User : Evan
[Special Effects] CircleUtils DL : 0: 根据圆半径和圆心坐标，计算圆外一点到圆上的坐标(circle radius , x, y , point)
Date : 2025-12-31 Size : 1kb User : 铁路