[ Raspberry Pi2 ] OpenCV using Picam Final

한글 블로그로 보기

This posting is final.

We will face detect and recognize.

OpenCV Download

opencv 2.3.1 다운로드

If above link is error use this link

Extract file and move folder OpenCV-2.3.1/data/harrcascades to

usr/share/opencv/haarcascades

new camcv file download

camcv_vid1.cpp 보기

Editing cmakelists.txt

1. sudo nano CMakeLists.txt

remove camcv.c and add camcv_vid1.cpp

Editing camcv_vid1.cpp

1. sudo nano camcv_vid1.cpp

1. Line 59
2. ----------------------------------------------------------------------------------------------
3. #include "/home/pi/pierre/libfacerec-0.04/include/facerec.hpp"
4. =>#include "/home/pi/camcv/libfacerec/include/facerec.hpp"로 수정
5. ----------------------------------------------------------------------------------------------
6. face recognition API
7.  
8. Line 681
9. ---------------------------------------------------------------------------------------------------
10. fn_haar = "/usr/share/opencv/haarcascades/lbpcascade_frontalface.xml";
11. =>fn_haar = "/usr/share/opencv/lbpcascades/lbpcascade_frontalface.xml"; 
12. ---------------------------------------------------------------------------------------------------
13. face detect lib
14.  
15. Line 764
16. ---------------------------------------------------------------------------------------------------
17. else if (!raspipreview_create(&state.preview_parameters))
18. =>else if ( (status = raspipreview_create(&state.preview_parameters)) != MMAL_SUCCESS) 
19. ---------------------------------------------------------------------------------------------------

All editing file download

Downloading for test sample image

Download sample image

Copy to /home/pi/camcv/others/

You can see 400's image file and  1 txt file.

open csv.txt 

left ';' is image file name, right is id number.

opencv compare this image file and getting id number.

open camcv_vid1.cpp Line 65

define ID number.

go to Line 661

You can see display name.

build

1. sudo cmake .
2. sudo make

If you see below error

copy contrib.hpp file.

contrib.hpp 

contrib.hpp download

copy to /usr/include/opencv2/contrib/contrib.hpp 

RUN

1

/camcv others/csv.txt l 5500

cs

Many image file is need long time.

If not display id name, reduce parameter

1

/camcv others/csv.txt l 3000

cs

but, lower the recognition rate.