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c++ Programming Glossary: contourAlgorithm improvement for Coca-Cola can shape recognition http://stackoverflow.com/questions/10168686/algorithm-improvement-for-coca-cola-can-shape-recognition limits The image could have some degree of fuziness contours could be not really straight There could be Coca Cola bottles.. reduce noise. Using Canny Edge Detection Filter to get the contours of all items after 2 precedent steps. Algorithm The algorithm.. the algorithm will learn . Each pixel remaining in the contour image will vote for another pixel which will supposedly be the..
OpenCV C++/Obj-C: Advanced square detection http://stackoverflow.com/questions/10533233/opencv-c-obj-c-advanced-square-detection 9 Mat gray0 blurred.size CV_8U gray vector vector Point contours find squares in every color plane of the image for int c 0.. 1 1 else gray gray0 l 1 255 threshold_level Find contours and store them in a list findContours gray contours CV_RETR_LIST.. Find contours and store them in a list findContours gray contours CV_RETR_LIST CV_CHAIN_APPROX_SIMPLE Test contours vector Point..
Simple object detection using OpenCV and machine learning http://stackoverflow.com/questions/6416117/simple-object-detection-using-opencv-and-machine-learning means no Haar or Viola algorithms. Also I thought on using contours to find circles on a Canny'ed image just have to find a way.. on a Canny'ed image just have to find a way to transform a contour into a row of data to teach the KNN. So... suggestions Thanks..
http://stackoverflow.com/questions/6806637/convexity-defects-c-opencv and hull are vector Point calculated separately CvSeq contourPoints CvSeq hullPoints CvSeq defects CvMemStorage storage CvMemStorage.. CvMemStorage storage CvMemStorage strDefects CvMemStorage contourStr CvMemStorage hullStr CvConvexityDefect defectArray 0 strDefects.. start converting vector Point resulting from findContours contourStr cvCreateMemStorage contourPoints cvCreateSeq CV_SEQ_KIND_GENERIC..
Square detection doesn't find squares http://stackoverflow.com/questions/7731742/square-detection-doesnt-find-squares std void help cout nA program using pyramid scaling Canny contours contour simpification and n memory storage it's got it all.. help cout nA program using pyramid scaling Canny contours contour simpification and n memory storage it's got it all folks to.. 2 out.rows 2 pyrUp pyr timg out.size vector vector Point contours find squares in every color plane of the image for int c 0..
OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection http://stackoverflow.com/questions/8667818/opencv-c-obj-c-detecting-a-sheet-of-paper-square-detection pyrUp pyr timg _image.size std vector std vector cv Point contours for int c 0 c 3 c int ch c 0 mixChannels timg 1 gray0 1 ch.. 1 1 else gray gray0 l 1 255 N cv findContours gray contours CV_RETR_LIST CV_CHAIN_APPROX_SIMPLE std vector cv Point approx.. std vector cv Point approx for size_t i 0 i contours.size i cv approxPolyDP cv Mat contours i approx arcLength..
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