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Old 03-25-2011, 12:29 AM   #1
nagraj0305
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How to change the parameters of in-built gspca to increase the image quality


Hi,
I'm using Logitech WebCam on fedora 11 and running webcam server to capture the images on the browser.. it works fine but the image quality is poor...
could anyone suggest me how to change the image quality by passing parameters via command line??
I tested Video quality on cheese as well, which is poor too..

I searched a lot in google for a solution but no use... i got some patch but couldn't install that since the gspca driver on my fedora 11 is in-built..

Output of lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 020: ID 046d:092f Logitech, Inc. QuickCam Express Plus
Bus 002 Device 003: ID 0e0f:0002 VMware, Inc. Virtual USB Hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub


Someone Plzzzzzzzzzzzzz Help.......
 
Old 03-25-2011, 05:52 PM   #2
corp769
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Have you tried using gtk-v4l?
Quote:
Someone Plzzzzzzzzzzzzz Help.......
And for the record, don't say stuff like that anymore. I was hesitant to help; Normally, when you say sh*t like that, people won't help for that shear fact. Thanks for understanding.

Josh

Last edited by corp769; 03-25-2011 at 05:53 PM.
 
Old 03-27-2011, 03:23 AM   #3
nagraj0305
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May i know what is "gtk-v4l"? is that a package that i need to install? if yes, how can i pass the parameters to gspca driver to increase the brightness.....
And let me confirm you that i haven't used any stuff like that... I just asked "someone please Help" what's wrong with this?
 
Old 03-27-2011, 01:29 PM   #4
corp769
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I was talking about you asking in the wrong way and not spelling your words properly.

And yes, gtk-v4l is a package you can install and see if you can use that to increase the brightness.
Code:
yum install gtk-v4l
 
Old 03-28-2011, 05:10 AM   #5
nagraj0305
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Ok as you said, i will install the package. May i know how can i change the image brightness using gtk-v4l? Gspca driver on my system is in-built. Please give the appropriate command/example which does the same.
 
Old 03-28-2011, 01:33 PM   #6
corp769
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What do you mean built in?
 
Old 03-28-2011, 11:32 PM   #7
nagraj0305
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Built-in means which is already "Included in a system by default, as a standard, or at the time of construction", here on fedora 11 "gspca driver" is in-built, I have not installed it, i hope u can understand, if not, find it out in google or improve your english first.
I'm seeking help from this forum, to solve my issue which is quite important and not to learn English, which i know better than you. stop advicing and don't send me "LEARN ENGLISH" links anymore.

Stop criticizing and Help me if possible, please don't reply if you can't. I request someone else to Help me or else good bye to this forum.
 
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Old 03-29-2011, 12:08 AM   #8
corp769
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Well don't go throwing a hissy fit there, sir. I asked about the built-in thing because originally you said "Gspca driver on my system is in-built." At first I didn't understand what you meant by that. And I take it that other another user has been talking to you, huh? And the links at the bottom are in my signature, they are sent regardless what I respond with. It is not directed to you. One last thing - "Someone Plzzzzzzzzzzzzz Help....... " You see all of the z's and the misspelling? It's a form of complete laziness and trolling, and we don't like that in the forums.

Now back to the original question - Just post the output of lsusb and lsmod, and I just might do everything for you. My way of troubleshooting is a bit different than everybody else, I like asking questions to know exactly what is going on.
 
Old 03-29-2011, 04:50 AM   #9
nagraj0305
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well at this particular moment, i just worried about my issue and not about the people, if they like or not. I don't want to comment regarding that anymore.
As requested, output of "lsusb" and "lsmod" is attached below.
Let me confirm my question again.
How can i increase the brightness of the image? i'm running webcam_server-0.50 to capture the image and displaying the same on the browser (http://127.0.0.1:8888). Is there any way i can set the brightness, contrast etc., manually?

Output of lsusb:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 006: ID 046d:092f Logitech, Inc. QuickCam Express Plus
Bus 002 Device 002: ID 0e0f:0002 VMware, Inc. Virtual USB Hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Output of lsmod:
Module Size Used by
sit 9072 0
tunnel4 2700 1 sit
gspca_spca561 8920 0
gspca_main 19172 1 gspca_spca561
videodev 29620 1 gspca_main
v4l1_compat 12056 1 videodev
fuse 49332 2
nfsd 206692 9
lockd 59416 1 nfsd
nfs_acl 2472 1 nfsd
auth_rpcgss 31020 1 nfsd
exportfs 3620 1 nfsd
bridge 43864 0
stp 1972 1 bridge
llc 4944 2 bridge,stp
bnep 14916 2
sco 16168 2
l2cap 32428 3 bnep
bluetooth 77104 5 bnep,sco,l2cap
sunrpc 155680 11 nfsd,lockd,nfs_acl,auth_rpcgss
nf_conntrack_tftp 4692 0
ip6t_REJECT 4540 2
nf_conntrack_ipv6 17740 7
ip6table_filter 3152 1
ip6_tables 10964 1 ip6table_filter
ipv6 235720 62 sit,ip6t_REJECT,nf_conntrack_ipv6
vmblock 11960 1
vsock 34844 0
vmmemctl 7856 0
vmhgfs 47312 0
dm_multipath 14044 0
uinput 6684 0
snd_ens1371 19944 2
gameport 9676 1 snd_ens1371
snd_rawmidi 18980 1 snd_ens1371
snd_ac97_codec 91768 1 snd_ens1371
ac97_bus 1416 1 snd_ac97_codec
snd_seq 45696 0
snd_seq_device 6216 2 snd_rawmidi,snd_seq
vmci 25964 1 vsock
snd_pcm 63236 2 snd_ens1371,snd_ac97_codec
i2c_piix4 11992 0
snd_timer 17760 2 snd_seq,snd_pcm
snd 50292 11 snd_ens1371,snd_rawmidi,snd_ac97_codec,snd_seq,snd_seq_device,snd_pcm,snd_timer
soundcore 5484 1 snd
snd_page_alloc 7784 1 snd_pcm
i2c_core 25032 1 i2c_piix4
ppdev 6500 0
parport_pc 22616 0
floppy 47220 0
pcspkr 2176 0
parport 28936 2 ppdev,parport_pc
pvscsi 12472 0
vmxnet3 24716 0
vmxnet 15708 0
BusLogic 61844 2

Last edited by nagraj0305; 03-29-2011 at 05:03 AM.
 
Old 03-29-2011, 07:20 AM   #10
corp769
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Hey man, check out posts 3 and 8 on this page: http://forum.skype.com/index.php?showtopic=106357
I think that is what you are looking for. I started to reply before, but then I thought of something, and clicking on this and that led me to that page on skype.com. Let me know if anything of that helps, since that is a lot of material, and I am not going to summarize that much LOL
 
Old 03-29-2011, 01:01 PM   #11
no2498
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think what he is looking for is v4lucp
it comes up in system/preference
as video4linux control panel
you can set the things he needs to do in it and look at what it looks like as you do it
 
Old 03-29-2011, 05:11 PM   #12
corp769
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I already mentioned a GUI he could use, but the OP doesn't want to use it.

And by the way, I'm not sure what you are running, but on my system it is v4l2ucp.

Last edited by corp769; 03-29-2011 at 05:12 PM.
 
Old 03-29-2011, 11:42 PM   #13
nagraj0305
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Thanks for your reply, I'm not using skype, so your link doesn't help me. i'm displaying the image on the browser where i need to increase the brightness.
I think we need to increase the brightness value in webcam_server.c file but i don't know where to change.
I never said i don't want to use GUI, i asked an example to use that but i dint get any from you. I would be happy if i can increase the brightness of the image by using some GUI.
 
Old 03-30-2011, 06:54 AM   #14
corp769
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Ok, now you are confusing the hell out of me. You want to increase the brightness of your webcam, correct? I already gave you an example, which is to use gtk-v4l, along with v4l2ucp from the other user who posted. What else do you want me to do, post a screenshot with an arrow pointing to the brightness slider?
 
Old 03-31-2011, 12:48 AM   #15
nagraj0305
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Ok leave it. Thanks for your Help.
 
  


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