Electrolytic capacitor positioning method based on Hough gradient method

The invention discloses an electrolytic capacitor positioning method based on a Hough gradient method, and the method comprises the steps: firstly converting a colored electrolytic capacitor image into a gray image, carrying out median filtering of the gray image, enhancing the image through histogram equalization, extracting the edge of the image by a Canny edge detection algorithm; and finally, positioning the top circle image of the electrolytic capacitor through an improved Hough gradient method. On the basis that the image processing speed is guaranteed, the positioning precision is improved, and the electrolytic capacitor positioning method is good and effective. 本发明公开了一种基于Hough梯度法的电解电容定位方法，首先将彩色的电解电容图像转化为灰度图像，然后将灰度图像进行中值滤波，接着通过直方图均衡化增强图像，然后通过Canny边缘检测算法提取图像边缘，最后通过改进的Hough梯度法定位电解电容顶部圆图像。本发明在保证图像处理速度的基础上，提高了定位精度，是一种良好有效的电解电容定位方法。