Vertical and horizontal projection of curves in OpenCV

Question

Is there a way to compute vertical and horizontal projection of curves in OpenCV ? For example in this paper , they have computed vertical projection of written signatures. How would I do it in OpenCV python?

Answer 1

您可以先使用Canny边缘检测器，再使用轮廓跟踪器： http : //docs.opencv.org/doc/tutorials/imgproc/shapedescriptors/find_contours/find_contours.html之后，您可以使用各个轮廓来计算投影。