OPENCV RASPBERRY PI2 (JESSIE) 5 -face recognition

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This posting is face recognition.

Download opencv-2.3.1

opencv 2.3.1

If can't download use this link

Extract and Copy OpenCV-2.3.1/data/harrcascades to usr/share/opencv/haarcascades

SAMBA is useful

If use Terminal 

permission

Extract and move /usr/share/opencv/haarcascades

Download camcv_vid1.cpp use below link.

Download camcv_vid1.cpp

Editing cmakelists.txt.

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sudo nano CMakeLists.txt

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changing name camcv.c to camcv_vid1.cpp

Editing camcv_vid1.cpp

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sudo nano camcv_vid1.cpp

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Line 59 ---------------------------------------------------------------------------------------------- #include "/home/pi/pierre/libfacerec-0.04/include/facerec.hpp" =>#include "/home/pi/camcv/libfacerec/include/facerec.hpp" ---------------------------------------------------------------------------------------------- face recognition API   Line 681 --------------------------------------------------------------------------------------------------- fn_haar = "/usr/share/opencv/haarcascades/lbpcascade_frontalface.xml"; =>fn_haar = "/usr/share/opencv/lbpcascades/lbpcascade_frontalface.xml";  --------------------------------------------------------------------------------------------------- opencv library   Line 764 --------------------------------------------------------------------------------------------------- else if (!raspipreview_create(&state.preview_parameters)) =>else if ( (status = raspipreview_create(&state.preview_parameters)) != MMAL_SUCCESS)  ---------------------------------------------------------------------------------------------------

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If difficult edit, download below link.

camcv_vid1.cpp(edit file)

Download sample face image.

sample image

Extract to /home/pi/camcv/others/

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sudo zip 100x100.zip

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csv.txt has face setting information.

Structure is File path and ID

Line 65 in camcv_vid1.cpp

define ID number.

Line 661 

define display name

Many image is hige accuracy but low speed.

Cmake and make

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sudo cmake . sudo make

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If you see below error, Download contrib.hpp

download contrib.hpp

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

cmake and make.

Run camcv (5500 is accuracy)

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./camcv others/csv.txt l 5500

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If include little sample image, low accuracy.

This is low accuracy value

OPENCV RASPBERRY PI2 (JESSIE) 4 -VIDEO

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This posting is video

This post use RaspVid.c

Editing RaspVid.c

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We  delete- all lines related to the preview component, - all lines related to the encoder component. - all lines related to inline command parsing and picture info… We change : - add the callback directly to the video_port  (line 286) - create and attach the pool (to get/send message)  to the video port… (line 320) - change format encoding to ENCODING_I420 in line (268) (instead of OPAQUE)

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And changing name.

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mv Raspvid.c camcv.c

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If difficult editing, download below link

Download camcv_vid0.c

Changing name and cmake

Run camcv in window mode

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./camcv

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You can see video.

If you want change pixel and color mode, editing Line 119~120 and Line 124

Frame in Pi 1

320×240 color : FPS = 27,2

320×240 gray : FPS = 28,6

640×480 color : FPS = 8

640×480 gray : FPS = 17

Frame in Pi 2

320×240 color : FPS = 29.9

320×240 gray : FPS = 29.9

640×480 color : FPS = 24.3

640×480 gray : FPS = 29.9

1280x960 color : FPS=6.6

1280x960 gray : FPS=15