Problems to capture the image in 0.2

[abdulhannankhan]

Problems to capture the image in 0.2

[GoogleCodeExporter]

This is the How-to , it should work for 0.3

http://lifeasiknow-it.blogspot.com/2009/08/pam-face-authentication-musings-how-t
o.html

just install those libraries and you can compile it easily

let me know if you need any more help

Original comment by [email protected] on 12 Aug 2009 at 12:49

[GoogleCodeExporter]

Original comment by [email protected] on 12 Aug 2009 at 12:49

• Changed title: Problems to capture the image.

[GoogleCodeExporter]

Original comment by [email protected] on 12 Aug 2009 at 12:49

• Changed title: Problems to capture the image in 0.2

[GoogleCodeExporter]

when using, "cmake -D CMAKE_INSTALL_DIR=/usr .." got this... 

-- Found X11: /usr/lib/libX11.so
CMake Error at /usr/share/cmake-2.6/Modules/FindQt4.cmake:1472 (MESSAGE):
  Qt qmake not found!
Call Stack (most recent call first):
  CMakeLists.txt:73 (FIND_PACKAGE)


-- Configuring incomplete, errors occurred!

And i guess i already have:
    Opencv 1.0.0 + (http://opencv.willowgarage.com/wiki/InstallGuide_Linux installed
and tested)

    libpam ( also the devel package) (verified in synaptic)

    libX11 (also the devel package ) (verified in synaptic)

    Qt4.5 (Not tested with lower versions) (verified in qtconfig, about.)

Original comment by [email protected] on 12 Aug 2009 at 1:20

[GoogleCodeExporter]

PS: I haven't removed the libs and other things that i used in older version.

Original comment by [email protected] on 12 Aug 2009 at 1:21

[GoogleCodeExporter]

After i install qt4.5 dev i tryed again and got this:

-- Looking for Q_WS_QWS - not found.
-- Looking for Q_WS_MAC
-- Looking for Q_WS_MAC - not found.
-- Found Qt-Version 4.5.0
-- Checking GNUCXX version 3/4 to determine  OpenCV /opt/net/ path
-- Performing Test PAM_MESSAGE_CONST
-- Performing Test PAM_MESSAGE_CONST - Success
-- Found PAM: /usr/lib/libpam.so;/usr/lib/libdl.so
-- Configuring done
-- Generating done
-- Build files have been written to:
/home/x-warrior/Desktop/pam-face-authentication-0.3/build"

Now i'm trying to use make and make install. I will post the results here.

Original comment by [email protected] on 12 Aug 2009 at 1:33

[GoogleCodeExporter]

make ok, make install i guess its ok. 

but when i try to use qt-facetrainer, it runs but i get a black screen with 
colored
dots. and in my console i got this error: 
"libv4l2: error dequeuing buf: Resource temporarily unavailable"

Original comment by [email protected] on 12 Aug 2009 at 1:37

[GoogleCodeExporter]

unset this and  try
export LD_PRELOAD=

Original comment by [email protected] on 12 Aug 2009 at 1:44

[GoogleCodeExporter]

# qt-facetrainer
HIGHGUI ERROR: V4L: index 0 is not correct!

# ls /dev/video0 
/dev/video0

Original comment by [email protected] on 12 Aug 2009 at 1:48

[GoogleCodeExporter]

could you reconnect the cam and try this , or best do a restart

i have never seen this error before , so i am not sure

Original comment by [email protected] on 12 Aug 2009 at 1:51

[GoogleCodeExporter]

I try to reconnect it. Doesn't work. 

Then i try to reboot. Doesn't work. 

Then i try to reconnect it again. Doesn't work. 

I try to use 'cheese' to see if webcam is working i can see the image but i get 
alot of 

libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000fffb
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000fffb
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000fff6
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff

Don't know if its related, just sending more informations to help. 

I will try to fix this, if i can i will post here. If you have another idea, 
tell me. 

Original comment by [email protected] on 12 Aug 2009 at 2:00

[GoogleCodeExporter]

what webcam do you use


reconnect
and do dmesg
you can get product id and vendor id from there

also the output of lsmod

Original comment by [email protected] on 12 Aug 2009 at 2:04

[GoogleCodeExporter]

after that
do modprobe -r  (gspca or uvcvideo)

and load it again
modprobe (gspca or uvcvideo)

Original comment by [email protected] on 12 Aug 2009 at 2:07

[GoogleCodeExporter]

what kernel version do you use?

also consider updating the kernel

Original comment by [email protected] on 12 Aug 2009 at 2:09

[GoogleCodeExporter]

dmesg

[ 1147.152047] usb 5-2: USB disconnect, address 3
[ 1147.152544] gspca: disconnect complete
[ 1149.516026] usb 5-2: new full speed USB device using uhci_hcd and address 4
[ 1149.709586] usb 5-2: configuration #1 chosen from 1 choice
[ 1149.712301] gspca: probing 0ac8:307b
[ 1150.483236] zc3xx: probe 2wr ov vga 0x7648
[ 1150.602244] zc3xx: probe 3wr vga 1 0x4001
[ 1150.784250] zc3xx: probe sensor -> 7648
[ 1150.784255] zc3xx: Find Sensor OV7648
[ 1150.787401] gspca: probe ok

lsmod:

$ lsmod
Module                  Size  Used by
ipt_REDIRECT           10240  1 
xt_tcpudp              11776  3 
ipt_MASQUERADE         11520  1 
iptable_nat            14724  1 
nf_nat                 30100  3 ipt_REDIRECT,ipt_MASQUERADE,iptable_nat
nf_conntrack_ipv4      24216  3 iptable_nat,nf_nat
nf_conntrack           84752  4 
ipt_MASQUERADE,iptable_nat,nf_nat,nf_conntrack_ipv4
nf_defrag_ipv4         10496  1 nf_conntrack_ipv4
iptable_filter         11392  1 
ip_tables              28304  2 iptable_nat,iptable_filter
x_tables               31624  5
ipt_REDIRECT,xt_tcpudp,ipt_MASQUERADE,iptable_nat,ip_tables
tun                    20868  0 
binfmt_misc            18572  1 
vboxnetadp            107308  0 
vboxnetflt            114796  0 
vboxdrv              1719308  1 vboxnetflt
lp                     19588  0 
gspca_zc3xx            59392  0 
gspca_main             34560  1 gspca_zc3xx
snd_hda_intel         557364  3 
snd_pcm_oss            52352  0 
snd_mixer_oss          24960  1 snd_pcm_oss
compat_ioctl32         18304  1 gspca_main
snd_pcm                99336  2 snd_hda_intel,snd_pcm_oss
snd_seq_dummy          11524  0 
snd_seq_oss            41984  0 
snd_seq_midi           15744  0 
snd_rawmidi            33920  1 snd_seq_midi
snd_seq_midi_event     16512  2 snd_seq_oss,snd_seq_midi
snd_seq                66272  6 
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer              34064  2 snd_pcm,snd_seq
snd_seq_device         16276  5
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
videodev               45184  2 gspca_main,compat_ioctl32
snd                    78792  15
snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,
snd_timer,snd_seq_device
i2c_viapro             17304  0 
v4l1_compat            23940  1 videodev
ppdev                  16904  0 
pcspkr                 11136  0 
soundcore              16800  1 snd
snd_page_alloc         18704  2 snd_hda_intel,snd_pcm
shpchp                 44572  0 
nvidia               8123768  26 
parport_pc             45096  1 
parport                49584  3 lp,ppdev,parport_pc
via_agp                18048  1 
usbhid                 47040  0 
r8169                  46596  0 
mii                    14464  1 r8169
floppy                 75816  0 
fbcon                  49792  0 
tileblit               11264  1 fbcon
font                   17024  1 fbcon
bitblit                14464  1 fbcon
softcursor             10368  1 bitblit

uname -a

Linux x-warrior-desktop 2.6.28-11-generic #42-Ubuntu SMP Fri Apr 17 01:58:03 
UTC 2009
x86_64 GNU/Linux


After try modprobe -r uvcvideo and modprobe uvcvideo i got the same problem.

Original comment by [email protected] on 12 Aug 2009 at 2:14

[GoogleCodeExporter]

Do you think i should update my kernel?

Original comment by [email protected] on 12 Aug 2009 at 4:32

[GoogleCodeExporter]

i had issues with 2.6.27 , now i am running .30 , it works smooth
yup update the kernel

Original comment by [email protected] on 12 Aug 2009 at 4:34

[GoogleCodeExporter]

I used this
linux-headers-2.6.30-020630_2.6.30-020630_all.deb

* AMD64: linux-headers-2.6.30-020630-generic_2.6.30-020630_amd64.deb.
* AMD64: linux-image-2.6.30-020630-generic_2.6.30-020630_amd64.deb.

from http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.30/

now: 
$ uname -a
Linux x-warrior-desktop 2.6.30-020630-generic #020630 SMP Wed Jun 10 09:04:38 
UTC
2009 x86_64 GNU/Linux

But i can't use it yet. I already have the same problem, the webcam is 
connected and
it says it isnt. 

I tryed the other things but it doesn't work. 

Any idea? :/

Original comment by [email protected] on 12 Aug 2009 at 6:31

[GoogleCodeExporter]

Hey man,

I formated my computer and installed Ubuntu 9.10 alpha 4 and try again 
verifying all
the steps and now its working for me. 

So, if you need some help talk to me ;) 

See you 

Original comment by [email protected] on 19 Aug 2009 at 3:55

[GoogleCodeExporter]

thats cool ,
You could try if it works with gdm
add line into /etc/pam.d/gdm
auth sufficient pam_face_authentication.so enableX

if this does not work
auth sufficient pam_face_authentication.so gdmlegacy

Original comment by [email protected] on 19 Aug 2009 at 3:59

[GoogleCodeExporter]

I already try it. 

It works sometimes but i receive a lot of 
"Corrupt JPEG data: premature end of data segment"

How many Sets of images is recommended? 

I used "auth sufficient pam_face_authentication.so enableX" now i try 
"auth sufficient pam_face_authentication.so gdmlegacy" and got alot of the same 
error
but i don't see my face in window, so i can't see if its "cool" 

Original comment by [email protected] on 19 Aug 2009 at 4:05

[GoogleCodeExporter]

I changed my webcam position and recreated a facetraine, and use both methods
gdmlegacy and enableX. I get now much sucess then failures. 

but i still receive 

"Face Verification Pluggable Authentication Module Started
Corrupt JPEG data: premature end of data segment
Verifying Face ...
Corrupt JPEG data: premature end of data segment
Corrupt JPEG data: premature end of data segment
Corrupt JPEG data: premature end of data segment
Verification successful."


Another question, if i want that 2 people have access to this account, i create 
one
set to each people?

Original comment by [email protected] on 20 Aug 2009 at 4:30

[GoogleCodeExporter]

yes, you can create a set or more (under different illumination) sets for each 
person
, it should work

Original comment by [email protected] on 20 Aug 2009 at 7:18

[GoogleCodeExporter]

Original comment by [email protected] on 8 Jul 2010 at 11:00

• Changed state: Fixed