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2013-01-03 08:35:22 -0600 commented answer Face recognition with opencv 2.4.x accuracy

you are the best. Really good and clear answer, i will try them as soon as possible. I think i cannot run the first code you said (to estimate the actual recognition rate) because my code is cpp code but i will search more. thank you for your answer.

2013-01-02 05:30:12 -0600 asked a question Face recognition with opencv 2.4.x accuracy

Hello, i try to implement this tutorial; http://docs.opencv.org/trunk/modules/contrib/doc/facerec/tutorial/facerec_video_recognition.html it's a really great and clear tutorial.But i have really important problem.

I built database for training images.I have my pictures and my friend's pictures in it. Lets say my name=xxx Friends name=yyy When program finds my face,it generally says yyy.(I tried it with lots of people(i didnt add their pictures on db) and keep saying yyy) when i first tried the program,i added my pictures and brad pitts,adriana lima pictures.When webcam captures my face,it said my name.if webcam captures brad pitts face(picture from my phone),it said brad.It looked work but it really doesnt. I really need to make some program when it captures my face,it closes a program, if there is not my face,it opens a program. How can i do that? How can i get it more accurate.Is it because of my pictures?I use python code for "Aligning Face Images".My pictures features are offset_pct=(0.3,0.3), dest_sz=(250,250).Are not they good values? I have 10 pictures for each people. Please tell me the possible problems to recognize me. Also when i try to give threshold value(even the value is 0) it couldn't find anybody.I need to use threshold because the program should work only with my face,other faces shouldn't be allowed.

I really need for some answers,i'm trying on this for a long time.

my system: Win 8, VS2010 premium, Opencv 2.4.2,

2013-01-02 05:26:16 -0600 asked a question face recognition opencv 2.4.x accuracy

Hello, i try to implement this tutorial; http://docs.opencv.org/trunk/modules/contrib/doc/facerec/tutorial/facerec_video_recognition.html it's a really great and clear tutorial.But i have really important problem.

I built database for training images.I have my pictures and my friend's pictures in it. Lets say my name=xxx Friends name=yyy When program finds my face,it generally says yyy.(I tried it with lots of people(i didnt add their pictures on db) and keep saying yyy) when i first tried the program,i added my pictures and brad pitts,adriana lima pictures.When webcam captures my face,it said my name.if webcam captures brad pitts face(picture from my phone),it said brad.It looked work but it really doesnt. I really need to make some program when it captures my face,it closes a program, if there is not my face,it opens a program. How can i do that? How can i get it more accurate.Is it because of my pictures?I use python code for "Aligning Face Images".My pictures features are offset_pct=(0.3,0.3), dest_sz=(250,250).Are not they good values? I have 10 pictures for each people. Please tell me the possible problems to recognize me. Also when i try to give threshold value(even the value is 0) it couldn't find anybody.I need to use threshold because the program should work only with my face,other faces shouldn't be allowed.

I really need for some answers,i'm trying on this for a long time.

my system: Win 8, VS2010 premium, Opencv 2.4.2,

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2012-11-17 12:44:50 -0600 asked a question video face recognition tutorial problem

i'm new in opencv and i'm trying to understand this tutorial. http://docs.opencv.org/trunk/modules/contrib/doc/facerec/tutorial/facerec_video_recognition.html

when i compile,web cam is opening but there is no face detection or recognition (no green rectangle or prediction number etc). i just changed these string fn_haar = string(argv[1]); string fn_csv = string(argv[2]); int deviceId = atoi(argv[3]); to these string fn_haar = "C:/haarcascade_frontalface_alt.xml"; string fn_csv = "C:/csv.txt"; int deviceId = 0;

my csv.txt like, C:/brad/brad01.jpg;1 C:/brad/brad02.jpg;1 C:/jenny/jenny01.jpg;2 C:/jenny/jenny02.jpg;2 C:/jenny/jenny03.jpg;2 C:/dilek/dilek01.jpg;3 C:/dilek/dilek02.jpg;3 C:/dilek/dilek03.jpg;3

i found some pictures on the internet and i took my pictures with webcam.i couldn't run the aligning - cropping phyton code,i cropped faces and rescaled them(94x94px.) with online cropping programs (i dont know what i could do)

i'm using win8 pro,vs2010 premium, opencv 2.4.2.i checked opencv with a simple image showing code,it worked.

what am i missing? my face images may be bad but even it couldn't recognize the face,should it be able to detect face and draw a rectangle? how can i crop and resize my pictures?please help..