javaCV Programming Software Development by sijothomas …vs2010.exe in C:\openCV 2-Then i put the javaCV and JNA in the library (System path.) 3-….NativeLibrary.getInstance(NativeLibrary.java:199) at com.googlecode.javacv.jna.Loader.load(Loader.java:44) at com.googlecode….<clinit>(cxcore.java:113) at com.googlecode.javacv.jna.highgui.<clinit>(highgui.java:73) at … JavaCV drawing problem Programming Software Development by silvercats How to draw a convexthull and a polygon around the hand in this tutorial. I found this tutorial in JavaCV how to detect a hand gesture. But it doesn't show how to draw the convexhull or a polygon around the palm. Can someone tell me how to do that in this example? http://www.javacodegeeks.com/2012/12/hand-and-finger-detection-using-javacv.html Re: JavaCV drawing problem Programming Software Development by silvercats there is no method in Graphics2d to draw a Convexhull. It is a JavaCV thing Re: JavaCV drawing problem Programming Software Development by Hiroshe Just draw it on the `Graphics2D` in `draw()`? Re: JavaCV drawing problem Programming Software Development by JamesCherrill That example has all the code and extensive explanations. What exactly do you need that's not in the code or the explanations? Re: JavaCV drawing problem Programming Software Development by silvercats > QThat example has all the code and extensive explanations. What exactly do you need that's not in the code or the explanations? It doesn't show how to Draw a Convexhull. It shows how to calculae it but there is no demonstration on how to draw it on the image. Re: JavaCV drawing problem Programming Software Development by silvercats > Just draw it on the Graphics2D in draw()? That is what I want to know how Re: JavaCV drawing problem Programming Software Development by silvercats I want to get the output like on this image. http://www.codeproject.com/Articles/498193/Mouse-Control-via-Webcam Re: JavaCV drawing problem Programming Software Development by Hiroshe If you don't knwo how to draw on a Graphics2D, then read the [documentation](http://docs.oracle.com/javase/7/docs/api/java/awt/Graphics2D.html). Re: JavaCV drawing problem Programming Software Development by Hiroshe Correct. AFAIK, You'll need to get the geometry of it and draw it onto the Graphics2D. Color Detection Using OpenCV Programming Software Development by 47pirates …opencv_imgproc.*; //non-static imports import com.googlecode.javacv.cpp.opencv_core.CvScalar; import com.googlecode.javacv.cpp.opencv_core.IplImage; public class ColorDetect { …googlecode.javacpp.Loader.load(Loader.java:294) at com.googlecode.javacv.cpp.opencv_core.<clinit>(opencv_core.java:129) at … Re: Motion Detection Programming Software Development by john303 Have a look at javacv which is a wrapper for opencv. its a great library