Software :: Get Image From Webcam By C Or C++ Program?
Jan 21, 2010
How to get image from webcam by linux c or c++ program? I have a netbook which comes with a webcam, however, how to identify it to be which device file in /dev? Is there any bash command to detect this?
Just purchased a webcam and it worked immediatelly with kopete. This was in the configuration dialog, a small window showed me moving around in all my gloriousness. Now realise why those horror films show this sort of footage.
Thing is: how to make the image bigger, fill the screen? Is there a program? Don't say rtfm, I don't know enough to do that.
I'm install a genius web cam eye 312 in fedora 11. The image is upside down in all the programs. In amsn there is no colors, and image upside down. In skype, chesse full colors very nice, but image upside down. amsn give me this information: v4l2 : usb camera (93a:2622)pac 7311. The command Lsusb give me Bus 005 Device 002: ID 093a:2622 Pixart Imaging, Inc. So I think there is a problem with the driver it self.
I have Asus Eee PC T 101 mt. Running SuSE Linux 11.4, KDE version 4.6.0 (Release 6). The image from integrated webcam is inverted. The image can be upturned to correct orientation by ticking the "Upturned" effect in Webcam (wxCam) application. However, these options are not available in Skype or Google video, or probably in all other services using webcam. Other person in video chat sees my inverted image. Is there a way by which I can correct the situation?
I found drivers for the laptop, both the basic and the webcam. The problem is that image is very dark. On my other OS i don't have this issue. PS: My Laptop is = Asus f5rl
I have a Ubuntu Server 10.04 box, which i have a Microsoft LifeCame VX-500 webcam connected via USB.
i think Ubuntu has detected my webcam
Code: kimse@ajax:/dev$ sudo lsusb Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 002: ID 045e:074a Microsoft Corp.
I'm writing to ask for help with a quality issue when using my webcam on sites like chatroulette, and even testwebcam. My webcam, albeit not a very expensive webcam, is quite decent quality, the box claims that it is 2.0 megapixels but... I'm not too sure. However-- When using this webcam on flash sites, the quality drops - it seems - from 640 x 480 to a measly 160 x 120. I get a very pixelated image from the webcam, but using it in cheese it works perfectly fine, at 640 x 480.
The webcam also works on windows, and the quality is fine on flash sites. But, I wouldn't want the only reason to be using windows to be chatroulette. Here are some screenshots comparing the qualities, the first being a screenshot of the webcam in use on [URL]... and the second being a screenshot of the webcam in use in cheese. I probably look like a bit of an idiot in both of the pictures, apologies for that.
I want develop an application using webcam.I want to capture the video from webcam and i want to dispay the video.can anybody suggest me how to do that thing using C lanuguage
Using Slackware 13.0. Have a Microdia web cam (60fc) and was (still am) looking for a simple free application to test it. Found a site which identified the drivers, modules, etc. needed so was checking my messages file and noticed that the Image Sensor HV7131R is not always identified as being detected when booting: kernel: usb 1-1.3: HV7131R image sensor detected Is this a problem or what?
I found modules videodev, V4L2, but could not find compat_ioctl32 and it is not listed in the modules loaded. Is this correct? Could not "find" it. I see usbcore listed during booting but does this mean it is a module? or a driver? or what? Also cannot find the an appropriate module that is for either ehci_hcd or uhci_hcd related as both of these appear in the messages. Also I see that the camera is for SN9C105 bridge and know that the "sn9c105" is supposed to be included in "sn9c102" module(?) but the SN9C105 camera notation does not always appear in messages. Is this correct? or (I think) I am confused by the numbering and cases used, i.e. what is a module (loadable?) a bridge and why change cases? Can someone straighten me out? Are all modules loaded listed by lsmod or just the loadable ones and usbcore etc. are "modules" loaded at another time?
whenever I video chat with someone the image from my webcam is clear but the video from the person on the other end is messed up. It is as if it does not render correctly, it's washed out and it looks like a full image and 2 cut off images, one on the bottom and one the top of the full image. Has anyone else encountered this? The PC has a Radeon 9800 Pro AGP card with the ATI drivers installed. Other video plays fine, ....., dvd, avi and mkvs.
I am running Ubuntu 9.10 and have installed aMSN from the repositories. But when i try to set up my Logitech webcam the whole aMSN program freezes solid and the only way i can get rid of it is to restart the computer.
I am trying to develop an application that uses webcameras (in jaunty), so I found this code here, which gives examples: [URL]. I compiled it on my computer (which has a built in webcam on top that I know works, tested it and it worked in luvcview) and then tried to run it. I get an error message that says:
Cannot identify '/dev/video': 2, No such file or directory I have located the part in the program where this comes from: static void open_device (void) { struct stat st; if (-1 == stat (dev_name, &st)) { /*dev_name is "/dev/video" btw, defined in main*/ fprintf (stderr, "Cannot identify '%s': %d, %s", dev_name, errno, strerror (errno)); exit (EXIT_FAILURE); }
I'm trying to setup a webcam surveillance system. Zoneminder didn't work for me regardless of how I tried configuring it, so I gave up and have now settled on a more primitive solution. I've currently got 6 cams and looping streamer (webcam screen grabber) I can grab a picture from each camera with about a 1 second interval. The previous picture is overwritten and using javascript to reload the image continuously in a browser I get the desired "movie" effect I'm after. The problem however is that as soon as I start using streamer on more than two cameras at once I run into this little snag:
Quote:
libv4l2: error turning on stream: No space left on device ioctl: VIDIOC_STREAMON(int=1): No space left on device
I've been searching around and it seems I need to increase my shared memory. I've done that (tried many different values and "solutions") but the problem remains the same.
My setup is as follows.
1.php (refreshes updated grab from camera 1 every second in the browser) 2.php (refreshes updated grab from camera 2 every second in the browser) 3.php (refreshes updated grab from camera 3 every second in the browser) etc etc.
Is it possible to use something like php exec to execute the command that starts 'streamer' that grabs the image from the specific webcam (/dev/video1 for 1.php and so forth) when 1.php is opened in the browser. Is this even possible, or am I just dreaming?
i have recently learned how to make backups of my psp games but for some reason they won't play them in iso format only cso (not suprisingly since everyone encourages the use of this format) is there a program out there thats easy to use, can someone show me how to use it i downloaded and installed ciso but haven't figured out what makes it tick
Using webcam component of XawTV package as supplied with Ubuntu 10.10. My implementation seems pretty basic, just needs to snap every 5 seconds and ftp to web site. It actually works just fine, but only for an hour or so. Then process continues to run, but image does not update. Kill & restart webcam and it works fine again, until it doesn't. Video stream in XawTV window is fine throughout, so I don't think there's a hardware problem.
I have a webcam ( sn9c120 (0x0C45:0x6130) ) which I don't get to work anymore.
Module sn9c102 is loaded. Plugging in gives me: usb 3-3: new full speed USB device using ohci_hcd and address 2 usb 3-3: New USB device found, idVendor=0c45, idProduct=6130 usb 3-3: New USB device strings: Mfr=0, Product=1, SerialNumber=0 usb 3-3: Product: USB camera
I was wondering what is available in the Linux world that would allow me to combine two or more jpegs into one grid-based image. I want to upload some images to an online auction and would like to combine them beforehand.
Haven't looked through Synaptic Package Manager yet.
I am having a problem finding a piece of software. I've searched a lot and still have not come up with an answer. My situation is as follows: I have an image file the I wish to restore to my USB flash drive but so far I've had no luck doing this. I was wondering if there was a program/command that could help me restore the disk image.
there i have a computer running ubuntu 9.10 set up as a server in my classroom. I have ftp http and an internal mail server set up on it as well as other settings. I really want to make a copy of the system so i have a back up of the os. i have figured out that i can attach a hdd to the computer and copy the os via the command line with an ubuntu live cd but this only works as long as the computer that is receiving the backup is exactly the same or the same computer. I would like to transfer the image to a portable hdd then install the os onto virtual box ( a virtual machine). Is there a way to do this without buying expensive software.dose ubuntu 9.10 have a product similar to Norton ghost.
I want to learn some details about linux booting, so I begin writing a small boot program myself. Yesterday, I was writing a small boot program and planned to use it boot a Bochs virtual machine. The boot program is written in assembly language and compiled with nasm.I use bxiamge.exe in Bochs and create an floppy image called boot.img and configure the Bochs virtual host to boot from this floppy image. My question is how to write the compiled boot.bin program into the floppy image(boot.img)?
I do a lot of 3D modeling in blender and I would like a program for creating textures for my models. I have used gimp, and it does the job, but it just does not quite fit for me. I do not need anything too fancy. The things that I am looking for in a program are mainly as follows:Layers Image rotation Paint Fill and brush (add on brushes would be nice) Support for png and tiff Levels, curves, hue and saturation.
In short I would like a free (open source is preferred) alternative to something like pixelmater. I can use a cloud based alternative but I really would rather use a stand alone program as I do not always have internet connection. Does such a program exist? What would you use?
As the title says, I'm looking for a program that will go through all images in a directory tree and determine if they're valid, if they've been corrupted, and (wishful thinking) if they have the wrong extension. Does anything like that exist?
I have a number of uncompressed audio files recorded off of an analog (POTS) telephone line of fax transmissions. Is there a Linux utility or library I could use to convert these files into images of the fax they contain? I'm not looking to send/receive a fax via a modem, but just to "replay" the communications tones and parse out the fax message.I'm guessing this may not be possible due to duplex issues and not knowing which end of the conversation is sending what,but thought I'd ask to see if anyone knew of something.
i have sony viao vgn-fz11 Can someone please help ,im new user to ubuntu been trying to get webcam working properly at the moment its upside down and does not work in skype at all just get black screen does this look correct? do i have the right driver?i will try and give as much information as i can.