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c++ Programming Glossary: circleOpenCV C++/Obj-C: Advanced square detection http://stackoverflow.com/questions/10533233/opencv-c-obj-c-advanced-square-detection i intersections.end i cout Intersection is i x i y endl circle occludedSquare i 1 Scalar 0 255 0 3 imshow intersect occludedSquare..
What is the difference between a concrete class and an abstract class? http://stackoverflow.com/questions/2149207/what-is-the-difference-between-a-concrete-class-and-an-abstract-class the draw method making the classes concrete class circle public shape public circle int x int y int radius set up the.. the classes concrete class circle public shape public circle int x int y int radius set up the circle virtual draw do stuff.. shape public circle int x int y int radius set up the circle virtual draw do stuff to draw the circle class rectangle public..
Tutorial for Iphone OpenCV on shape recognising http://stackoverflow.com/questions/5738792/tutorial-for-iphone-opencv-on-shape-recognising got from using the search box on stackoverflow Detecting a circle of a specific color or gray level with openCV Detect Corners..
Simple 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.. 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.. 2 255 100 0 35 if circles total 0 getting first found circle float circle float cvGetSeqElem circles 0 Drawing green center..
http://stackoverflow.com/questions/9860667/writing-robust-color-and-size-invariant-circle-detection-with-opencv-based-on robust color and size invariant circle detection with opencv based on Hough transform or other features.. 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..
When is an object “out of scope”? http://stackoverflow.com/questions/10080935/when-is-an-object-out-of-scope on the stack and then going out of scope if myCondition Circle c 20 c.draw c is now out of scope The only way for a stack created.. the original goes out of scope but a copy is made. Example Circle myFunc Circle c 20 return c The original c went out of scope... out of scope but a copy is made. Example Circle myFunc Circle c 20 return c The original c went out of scope. But the object..
Best Practice For List of Polymorphic Objects in C++ http://stackoverflow.com/questions/1080448/best-practice-for-list-of-polymorphic-objects-in-c serialization here. private square member variables. class Circle public Shape public void draw const draw code here. void serialize.. public GenericShape const Square shape GenericShape const Circle shape ~GenericShape operator const Square Throw error here if.. here if a circle tries to get a square operator const Circle Throw error here if a square tries to get a circle private Shape..
Static vs dynamic type checking in C++ http://stackoverflow.com/questions/1347691/static-vs-dynamic-type-checking-in-c allows downcasting of polymorphic types assuming that Circle derives from Shape... Shape shape new Circle 50 Circle circle.. assuming that Circle derives from Shape... Shape shape new Circle 50 Circle circle dynamic_cast Circle shape Furthermore you can.. Circle derives from Shape... Shape shape new Circle 50 Circle circle dynamic_cast Circle shape Furthermore you can use the..
How to return different classes from one function? http://stackoverflow.com/questions/2237775/how-to-return-different-classes-from-one-function . struct NoIntersection empty struct Point whatever struct Circle whatever typedef boost variant NoIntersection Point Circle IntersectionResult.. Circle whatever typedef boost variant NoIntersection Point Circle IntersectionResult IntersectionResult intersection_test if some_condition.. return Point x y if another_condition return Circle c r throw std runtime_error unexpected You then process your..
http://stackoverflow.com/questions/28080/how-bad-is-dynamic-casting it comes in handy. There is a base Shape class and classes Circle and Rectangle derived from it. In testing for equality it is.. from it. In testing for equality it is obvious that a Circle cannot be equal to a Rectangle and it would be a disaster to..
Formulating Image Outline Programmatically (Preferrably C#/C++ coding, or pseudo coding) http://stackoverflow.com/questions/5507112/formulating-image-outline-programmatically-preferrably-c-c-coding-or-pseudo like you would trace it manually. Like you with Trace a Circle. The purpose is for it to be used as a trigger area for hovering..
Tutorial for Iphone OpenCV on shape recognising http://stackoverflow.com/questions/5738792/tutorial-for-iphone-opencv-on-shape-recognising are results from Google Tracking colored objects in OpenCV Circle recognition using openCV Fast OpenCV Circle Tracking check the.. in OpenCV Circle recognition using openCV Fast OpenCV Circle Tracking check the description of the video for tips This series..
Can a pointer to base point to an array of derived objects? http://stackoverflow.com/questions/7196172/can-a-pointer-to-base-point-to-an-array-of-derived-objects crash class Shape public virtual void draw const 0 class Circle public Shape public virtual void draw const int radius class..
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