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2015-10-16 11:06:48 -0600 | commented question | What is "convexityDefects" in opencv ? @LBerger thanks that was helpfull :) |
2015-10-12 15:53:21 -0600 | commented question | can't get image in color mode using opencv c++ with raspberry camera module @Eduardo yes you're right , thanks |
2015-10-12 15:52:00 -0600 | asked a question | What is "convexityDefects" in opencv ? Hi , i am implementing a hand recognition system using opencv , i found that i must be using "convexityDefects" : what i have understand from this page documentation : convexityDefects that it is used to count fingers of the hand hull by determining the minimum distance between the two points on the hand .... but i still don't know exactly how this procedure is done , can anybody give me more explannation about it also what algorithm is used for hand gesture recognition in opencv Any help will be appreciated , thanks |
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2015-08-29 14:09:08 -0600 | commented question | A way to count how many people have been detected in faceDetect.cpp @berak yes just in time the person is viewing the camera , itt's about beign able to measure the audiance for a smart billboard wich is equiped with a camera
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2015-08-29 13:49:20 -0600 | asked a question | Erros whe uninstalling opencv 2.4.10 Hi , i want to uninstall opencv 2.4.10 from ubuntu 14.04 and install opencv 3.0.0 i have enter to the build directory where i have install from opencv with cmake . so when running
i get this output (more) |
2015-08-27 03:09:33 -0600 | commented question | A way to count how many people have been detected in faceDetect.cpp @berak i think that recognition is impossible since my application turn in real time , i'm just looking for a trick to estimate the number of persons , or maybe there is nothing i can do , thanks |
2015-08-26 16:08:49 -0600 | asked a question | A way to count how many people have been detected in faceDetect.cpp I am running the code faceDetect.cpp , i need to count how many people are beign detected , i can detect how many people are in in the same frame by incrementing a variable for each face detected but in the case for example if the person appear , disapear and re-appear i couldn't find a way to count it as just one person the complete code can be found here we are interrested in this part of the code (the function detectAndDraw) where the face and the eye are beign detected } note that the color is changed every time a new face is detected , that is the case when multiple image are detected in the same frame , but i am interrested in one person where the color normally doesn't change any hints ? |
2015-08-26 08:54:19 -0600 | commented question | How to run faceDetect faster @sturkmen yes it a way to do so but it won't detect the big faces , i am using size(30,30) |
2015-08-26 08:51:10 -0600 | commented question | How to run faceDetect faster @berak like i said if i increase the scale factor the accuracy is gone , yes i can limit the space in detectMultiscale function it's set to 30,30 but it the limit if i decrease it more it will not detect more faces |
2015-08-26 06:45:32 -0600 | commented question | How to run faceDetect faster @berak you're right LBP is faster (a few times faster) but less accurate. (10-20% less than Haar). , for me it's about 5 times faster that's because i use eye detection too with haar classifier using |
2015-08-25 12:10:15 -0600 | asked a question | How to run faceDetect faster Hi i'm a newbie in opencv , i want to run the code faceDetect.cpp in sample folder on a raspberry pi 2 overclocked to 1GHZ , i'm using faceDetect.cpp to detect face and eye gaze the program is a little bit slow due to the detection i want that the program runs in real time ... the only improvement that i can done is to increase the scale but the accuracy decreases a lot ... is there any alternative that can be done without affecting much the accuracy !!! thanks a lot. |
2015-08-06 06:27:08 -0600 | commented question | How to properly install opencv 3 with QT on Raspberry @StevenPuttemans the problem is to use it with raspberry =D not in laptop , maybe there is no difference since both the pi and laptop (ubuntu) are linux based systems ?? |
2015-08-06 06:23:08 -0600 | commented question | How to properly install opencv 3 with QT on Raspberry @StevenPuttemans the link you have posted is for cross compiling QT for raspberry ... do i realyy need it or just this https://wiki.qt.io/Apt-get_Qt4_on_the... |
2015-08-06 05:42:11 -0600 | commented question | How to properly install opencv 3 with QT on Raspberry @StevenPuttemans but there is some issues on using QT 5 with OPENCV 3.0 ... maybe i sould use QT 4.8.6 unstead of QT 5 |
2015-08-06 04:16:48 -0600 | commented question | How to properly install opencv 3 with QT on Raspberry yes yes but what about QT , do i need just to include the qt flag in cmake ?? |
2015-08-06 04:12:52 -0600 | commented question | How to use OPENCV 2.4.10 with QTCreator 3.4.1 @theodore , NO i haven't compiled opencv with QT flag :p , the problem was in the developpement kit , i use the default where both QT 5.4.2 and QT 4.8.6 are checked , so i have now checked just QT 4.8.6 and it worked .. thanks man ......... Now i want to use opencv 3 with QT on raspberry have you any link or tutorial ? |
2015-08-06 03:46:33 -0600 | asked a question | How to properly install opencv 3 with QT on Raspberry HI all, i want to install opencv 3 with QT enabled on my raspberry B+ , any suggestions or links to do all the procedure thanks |
2015-08-05 05:53:58 -0600 | commented answer | Errors after wrong installation of opencv please see the "update section" |
2015-08-05 05:48:00 -0600 | received badge | ● Scholar (source) |
2015-08-05 05:47:59 -0600 | commented answer | Errors after wrong installation of opencv solve it now from the previous post .... now i will update my question or just add another post thanks |
2015-08-05 05:39:56 -0600 | commented question | Redeclaration issue @StevenPuttermans Hi steven , ok thank you i have used #include <opencv2 imgproc="" imgproc.hpp=""> and comment the line //#include <opencv2 imgcodecs.hpp=""> now it worked so i have opencv 2.4.10 but not if i uncomment imgcodecs |
2015-08-05 05:27:56 -0600 | commented question | How to use OPENCV 2.4.10 with QTCreator 3.4.1 @theodore i have added a capture |
2015-08-05 05:04:54 -0600 | asked a question | Errors after wrong installation of opencv Hi , i'm trying to run an example of face detection using opencv , C++ , and QT from here : https://github.com/benhoff/opencv when running make i get the following errors
there are plenty of them i think the problem is that i have installed firstly opencv 3.0.0 alpha and i want to change it to opencv 2.4.10 so what i have did is deleting manually all libraries and headers in /usr/local/lib and /usr/local/include (that because i haven't found a tutorial explaining how to properly delete opencv or re-install it) and after that i installed opencv 2.4.10 that's is the source of the error but now how can i solve this ?? solution ;: the code included 2 headers in the same time so i have commented the second line because i have opencv 2.4.10 update : here what i get now after make : Any suggestion will be appreciated :) NB : I'm using ubuntu 14.04 , opencv 2.4.10 , QT 4.8.6 |
2015-08-05 04:38:11 -0600 | commented question | Redeclaration issue so what was the solution ??? |
2015-08-04 19:04:51 -0600 | edited question | How to use OPENCV 2.4.10 with QTCreator 3.4.1 HI all, i want to use opencv with qtcreator on ubutnu 14.04 , can you help me to do this . i have followed this link http://rodrigoberriel.com/2014/11/usi... but i get an error in compilation : cannot find -lopencv_imgcodecs
the output of pkg-config --libs opencv /usr/local/lib/libopencv_calib3d.so /usr/local/lib/libopencv_contrib.so /usr/local/lib/libopencv_core.so /usr/local/lib/libopencv_features2d.so /usr/local/lib/libopencv_flann.so /usr/local/lib/libopencv_gpu.so /usr/local/lib/libopencv_highgui.so /usr/local/lib/libopencv_imgproc.so /usr/local/lib/libopencv_legacy.so /usr/local/lib/libopencv_ml.so /usr/local/lib/libopencv_nonfree.so /usr/local/lib/libopencv_objdetect.so /usr/local/lib/libopencv_ocl.so /usr/local/lib/libopencv_photo.so /usr/local/lib/libopencv_stitching.so /usr/local/lib/libopencv_superres.so /usr/local/lib/libopencv_ts.a /usr/local/lib/libopencv_video.so /usr/local/lib/libopencv_videostab.so /usr/local/lib/libopencv_viz.so /usr/lib/x86_64-linux-gnu/libXext.so /usr/lib/x86_64-linux-gnu/libX11.so /usr/lib/x86_64-linux-gnu/libICE.so /usr/lib/x86_64-linux-gnu/libSM.so /usr/lib/x86_64-linux-gnu/libGL.so /usr/lib/x86_64-linux-gnu/libGLU.so -ltbb -lrt -lpthread -lm -ldl and pkg-config --cflags opencv is -I/usr/local/include/opencv -I/usr/local/include The source file : The project configuration file --------------------------------------------------------------------- thanks a lot |
2015-08-04 09:02:44 -0600 | commented question | How to use OPENCV 2.4.10 with QTCreator 3.4.1 up up up ... |
2015-08-03 16:41:00 -0600 | commented question | How to use OPENCV 2.4.10 with QTCreator 3.4.1 @theodore ok now i have added the 2 lines and tried by system package => the compilation worked if i don't have some manipulation in opencv like just cv::Mat frame; (the same thing previously mentionned) .... if i add smth like cv::VideoCapture cap(0); or cv::Mat test_image = cv::imread("elarbi.jpg"); or cv::namedWindow("Disp"); i got the same error and the msg The program has crashed (it's the same thing as previously ) => i'm wondering what could be the problem because i don't have any errors in the opencv headers that i have included in the main.cpp ..... thanks |
2015-08-03 08:40:36 -0600 | commented question | How to use OPENCV 2.4.10 with QTCreator 3.4.1 @berak i have deleted the libs and added LIBS += |