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c++ Programming Glossary: circlesSimple object detection using OpenCV and machine learning http://stackoverflow.com/questions/6416117/simple-object-detection-using-opencv-and-machine-learning Viola algorithms. Also I thought on using contours to find circles on a Canny'ed image just have to find a way to transform a contour.. improve this question Well basically you need to detect circles . Have you seen cvHoughCircles Are you allowed to use it This.. the code to your advantage. Input Outputs compiled with g circles.cpp o circles `pkg config cflags libs opencv` #include stdio.h..
How to detect the Sun from the space sky in OpenCv? http://stackoverflow.com/questions/8218997/how-to-detect-the-sun-from-the-space-sky-in-opencv CvMemStorage storage cvCreateMemStorage 0 CvSeq circles cvHoughCircles dst storage CV_HOUGH_GRADIENT 12 dst width.. storage CV_HOUGH_GRADIENT 12 dst width 2 255 100 0 35 if circles total 0 getting first found circle float circle float cvGetSeqElem.. getting first found circle float circle float cvGetSeqElem circles 0 Drawing green center dot cvCircle image cvPoint cvRound circle..
http://stackoverflow.com/questions/9860667/writing-robust-color-and-size-invariant-circle-detection-with-opencv-based-on I wrote the following very simple python code to find circles in an image import cv import numpy as np WAITKEY_DELAY_MS 10.. while key_pressed STOP_KEY # grab image orig cv.LoadImage 'circles3.jpg' # create tmp images grey_scale cv.CreateImage cv.GetSize.. for every single image HIGH 50 LOW 140 try # extract circles cv.HoughCircles processed storage cv.CV_HOUGH_GRADIENT 2 32.0..
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