Logitech usb web camera

hi...
I have downloaded a file from the labview discussion forum, filename: lv_vfw.zip. This file enable the real-time image capture for web camera, it work fine but when i try to web-enable this program, the image window does not appear in the other pc, what happen?what should i do to allow another party (pc) to have the image?

Are you using Remote Panels with LabVIEW to "web enable" your image? If so, you should be using NI-IMAQ 2.6. The WindDraw window that comes with the Vision module for LabVIEW doesn't work with Remote Panels; you should be using the new embedded front panel image display instead.
I'm not sure where exactly you got the driver for the USB camera, but I'm pretty sure it didn't come from NI. You should probably work with whomever provided the driver.
Good Luck.
Kyle V

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How do I use a usb web cam with MacBook Pro

How do I use a web camera with a MacBook Pro? I want to run it through my laptop so I can project it on a screen for teaching a class.

b. todd wrote:
Can I record directly into iMovie with a usb web cam instead of iSight?
You can try it, but probably not.
This Apple article http://support.apple.com/kb/PH2134 explains that a Firewire-connected, tape-based camera or camcorder mode will work.
If you don't have access to one that works, a simple workaround is to record your video with QuickTimeX Player (the v.10.x one from Lion). You can import that recorded video into iMovie for editing.
If your Mac OS is earlier than Lion whose QuickTime does not offer movie recording as installed, use QuickTime7 Pro for recording.
Message was edited by: EZ Jim
Mac OSX 10.7.3

Photobooth greenscreen doesn't work with Logitech C615 Web Camera

I just installed a Logitech C615 HD web cam and I'm trying to use it with photobooth. While the video and sound records just fine when using most effects such as normal, dizzy, frog, blockhead etc., when trying to use any of the effects with moving backgrounds such as Eiffel Tower, Rollercoaster or Sunset, Photobooth says "Detecting Background" very briefly (less than 2 seconds).There is no time for the user to move out of the video for the greenscreen process to work correctly.
What you get is just a video of the Eiffel Tower, Rollercoaster etc, with out the web cam user showing up.
I have tried removing the com.apple.PhotoBooth.plist file, but the problem still persists.
I have searched the Logitech web site and while the do mention some compatibilty issues, the problem I'm seeing with Photobooth doesn't seem to be one of them.
I'm currently running a Mac Mini 5,1 - i5 [email protected] - Mid 2011
8GB RAM / OS X 10.7.5
Any suggestions on how to fix this problem would be greatly appreciated.

One or both of these may help you.
(1) Perhaps you installed some additional software on your Mac mini to control your Logitech?
If so, that software's driver may be overriding the Mac OS X webcam software and causing trouble with the "fixed focus and exposure and white balance" requirements for using Photo Booth's backdrops shown in http://support.apple.com/kb/PH5610
As one example, Logitech's http://tinyurl.com/ckfesn7 Troubleshooting page advises that their software may limit compatibility with some applications, Photo Booth included.
If you have installed any software beyond that automatically installed by OS X, follow the supplier's instructions on now to uninstall it, restart your Mac, and test again.
(2) Your problem can also be caused by small, even tiny, movement of your camera:
http://support.apple.com/kb/PH5607
Movement in the camera's background field of view, even air moving pictures or curtains behind you, can also cause this.
Make sure everything is absolutely still, restart, and test again.
Message was edited by: EZ Jim
Mac OSX 10.8.3

Driver for USB Web-camera?

I'd like to use a cheap web camera as an input device to Labview so that
I can play with the image processing features.
Does anyone have a driver for something like that? I've looked at the
NI web site and I haven't found anything for USB. Lots of firewire, IEEE 1394,
but no USB.
Jim

That's a joke, right? Very hard? Other that the very specific USB drivers
that Iomega provides with their USB zip drives for WinNT, there are no drivers
for USB for WinNT. There was some software developer down in India that
allegedly had USB drivers for NT and like a fool I tried to use them. Zoowie,
I get to reformat my hard drive. Complete and total system disablement (?)
If you know of any USB driver for WinNT let us all know. I for one have a
large financial and personnel commitment to NT and don't have any plans of
switching to Windows 2000 any time soon.
On Fri, 24 Nov 2000 12:05:53 +0100, "AIR Tech. Autom." wrote:
>First, if your using Windows NT, it will be very hard to get USB to work.
>
>What we've done to get an image
in LabVIEW, is this. We've made the PC a
>webserver. We've used third party software to build a webpage with the
>"webcam". We've used ActiveX to show the webpage in LabVIEW.
>
>Another way is: Use third party software to constantly update a .jpg. In
>LabVIEW, check if the jpg is modified, load it, and display it. You'll get
>some heavy 'flickering' this way.
>
>I've look at a way to use window API's to capture the image, but it isn't as
>easy as it sounds.
>
>Regards,
>
>Wiebe Walstra.
===========================================================================
SolidWorks Research Partner National Instruments Alliance Member
Christopher Dubea Phone: (504) 847-2280
Vice President of Engineering Fax: (504) 847-2282
Moving Parts L.L.C. email: [email protected]
P. O. Box 6117 URL: http://www.movingpart.com
Slidell, LA 70469-6117

E-bay Isight and USB web cams.

Two questions.
If I am looking at an apple isight on ebay is there a way to tell how old it is by model #? is there a batch that I would want to pick over another?
Is there a link or web page that tells which usb webcams are most compatible w/ macs.
my laptop and desktop both need webcams
thanks for the forums help

The M8817LL started being sold around july 2003. The M9330LL was sold around Jan 2006. That makes it a newer version of the iSight external camera. Here are the links to Amazon for both cameras You can see the specs and differences there.
http://www.amazon.com/Apple-iSight-FireWire-Computers-M8817LL/dp/B0000AKACN
http://www.amazon.com/Apple-iSight-camera-color-FireWire/dp/B0002HN1LQ/ref=sr12/103-3868516-6079804?ie=UTF8&s=electronics&qid=1191437135&sr=8-2

USB web cam and labview (IMAQ)

Hi Everyone
Is it possible to acquire images from a web video-cam with Labview/Imaq.
which is connected via USB port ?
Any information would be appreciated.
Thanks in advance
Andreas

Hi Dogan (how do I get that g correct?)
I think you are using a non-english (or some other languages) OS?
If so have a look at this thread
Good luck,
Ton
Free Code Capture Tool! Version 2.1.3 with comments, web-upload, back-save and snippets!
Nederlandse LabVIEW user groep www.lvug.nl
My LabVIEW Ideas
LabVIEW, programming like it should be!

Trying to use USB web cam instead of iSight but iMovie won't switch

Hi, everyone. I need to record voice and video from people sitting at right angles to the computer, so I can't use the built in iSight in my monitor. I bought a Mac compatible Logitech QuickCam VisionPro with USB cable, but I can't get iMovie to use it instead of the iSight. The System Profiler shows the Logitech camera listed under USB devices, but when I try to Import video in iMovie, I only have the Built-in iSight to choose from for cameras. Is there anyway to do this? Or do I need a different camera? Or can I use another program to record the video/audio, and then import that into iMovie? I don't need to do any editing, just burn DVDs with iDVD. Thanks in advance...

I had the same problem, cos sometimes imovie won't let you add more titles when you try to take them straight from the title menu. I happened to me mostly when the clip itself is quite short. While imovie won't let you overlay several titles, you surely can have several titles, one after the other, in your project. To do this, I used a little trick: Add some small clip to the end of your project. Doesn't matter what, you're gonna delete it again anyway. You can then add another title to this additional clip. Then you just drag this title from there to your actual clip and place it where you want it. And then you do the next one(s) the same way until you have all your titles where you want them. At the end you just delete the "helping" clip again. It might be a bit complicated way of doing things, but it worked for me.

I can;t get firefox to use my usb web cam. It always uses the built in i sight cam

fire fox uses the built in cam and does not recognize my USB webcam. Independent programs such as Skype, yahoo messenger and I chat have no problem with the USB cam.

hello cl092, unfortunately there are currently authentication issues with the sync server - the admins are investigating this issue. maybe keep an eye on this thread to get updates when sync is restored to working order again: https://support.mozilla.org/en-US/questions/966368

Is there a way to use an iphone 4 as a wired USB web camera?

I've researched alot of apps that will allow the iphone to be used as a webcam, but they all seem to be wireless... is there any way to do this through a USB connection?
(I hope to make stopmotion animition using dragonframe with my iphone as an external HD webcamera, the dragonframe software requires USB connection)
Any help is greatly appriciated!
-Chris

Just wanted to point out something that is possible with iOS 8 and OS X Yosemite coming out. You can use the below feature, and use and app on the iOS Device such as 'Mirror', to give you your camera with no UI, to record like a USB webcam. Pretty cool. Hope this helps.
Check it out!
Source: http://goo.gl/TE2Txj
Here is a quote:
"With iOS 8 and OS X Yosemite, Apple has made it possible to capture real-time footage of apps directly off an iPhone, iPad, or iPod touch, as pointed out by 9to5Mac. Once you connect an iOS 8 device to your Mac running OS X 10.10, it will be automatically available as a video camera. You can then capture anything you’re doing on-screen directly to your Mac using QuickTime Player."

Use usb web camera

i want to see a live feed from a usb camera and to be able to save it to my computer
do i need anything else but
NI Vision Acquisition Software?
and can i use this software for analog camera?

Hey guys,
The write to file 2.vi (jpeg,bmp etc.) can only be accessed through the vision development module. This is the same when writing to an AVI file. The vision acquisition software might be able to interact with an analog camera, but we do not support that anymore. Also the vision development module comes with a license for vision acquisition software. I hope that this helps!
Paolo F.
National Instruments
Applications Engineer

USB Web-camera programming

I want to develop a multimedia application that can captures images from the USB-camera. I want that application work with all cameras. Can it possible that my application can capture image in different file format. Please provide me proper guideline about which Java API used to help me to solve this problem

I would really like this ability as well, except I want to use it in an applet so it will be accessible from anywhere and people will be able to upload a picture to the webserver...

USB Web Cam Logitec Orbit

Trying to control a Logitec Quick Cam Orbit in LabVIEW. Looking to acquire the image, manipulate it and have the positioning motors respond to given command... Help please... Quite urgent.

This question pops up with almost always the exact same text at least once a month here.
I think the search box at the end of the page should be all the way above. Maybe some users would then actually see that option and actually use it to search in the board for their problem before asking a question.
Just type in "webcam" and you get so many results that it may already be difficult again to decide which one to read ;-)
One thread whith all the information you can wish about this is:
http://forums.ni.com/ni/board/message?board.id=170&message.id=99577&query.id=9033#M99577
Rolf Kalbermatter
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

Capture Web Cam image in APEX and Upload into the Database

Overview
By using a flash object, you should be able to interface with a usb web cam connected to the client machine. Their are a couple of open source ones that I know about, but the one I chose to go with is by Taboca Labs and is called CamCanvas. This is released under the MIT license, and it is at version 0.2, so not very mature - but in saying that it seems to do the trick. The next part is to upload a snapshot into the database - in this particular implementation, it is achieved by taking a snapshot, and putting that data into the canvas object. This is a new HTML5 element, so I am not certain what the IE support would be like. Once you have the image into the canvas, you can then use the provided function convertToDataURL() to convert the image into a Base64 encoded string, which you can then use to convert into to a BLOB. There is however one problem with the Base64 string - APEX has a limitation of 32k for and item value, so can't be submitted by normal means, and a workaround (AJAX) has to be implemented.
Part 1. Capturing the Image from the Flash Object into the Canvas element
Set up the Page
Required Files
Download the tarball of the webcam library from: https://github.com/taboca/CamCanvas-API-/tarball/master
Upload the necessary components to your application. (The flash swf file can be got from one of the samples in the Samples folder. In the root of the tarball, there is actually a swf file, but this seems to be a different file than of what is in the samples - so I just stick with the one from the samples)
Page Body
Create a HTML region, and add the following:
    <div class="container">
     <object id="iembedflash" classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000"
codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,0,0" width="320" height="240">
          <param name="movie" value="#APP_IMAGES#camcanvas.swf" />
          <param name="quality" value="high" />
          <param name="allowScriptAccess" value="always" />
          <embed allowScriptAccess="always" id="embedflash" src="#APP_IMAGES#camcanvas.swf" quality="high" width="320" height="240"
type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" mayscript="true" />
    </object>
    </div>
<p><a href="javascript:captureToCanvas()">Capture</a></p>
<canvas style="border:1px solid yellow" id="canvas" width="320" height="240"></canvas>That will create the webcam container, and an empty canvas element for the captured image to go into.
Also, have a hidden unprotected page item to store the Base64 code into - I called mine P2_IMAGE_BASE64
HTML Header and Body Attribute
Add the Page HTML Body Attribute as:
onload="init(320,240)"
JavaScript
Add the following in the Function and Global Variable Declarations for the page (mostly taken out of the samples provided)
//Camera relations functions
var gCtx = null;
var gCanvas = null;
var imageData = null;
var ii=0;
var jj=0;
var c=0;
function init(ww,hh){
     gCanvas = document.getElementById("canvas");
     var w = ww;
     var h = hh;
     gCanvas.style.width = w + "px";
     gCanvas.style.height = h + "px";
     gCanvas.width = w;
     gCanvas.height = h;
     gCtx = gCanvas.getContext("2d");
     gCtx.clearRect(0, 0, w, h);
     imageData = gCtx.getImageData( 0,0,320,240);
function passLine(stringPixels) {
     //a = (intVal >> 24) & 0xff;
     var coll = stringPixels.split("-");
     for(var i=0;i<320;i++) {
          var intVal = parseInt(coll);
          r = (intVal >> 16) & 0xff;
          g = (intVal >> 8) & 0xff;
          b = (intVal ) & 0xff;
          imageData.data[c+0]=r;
          imageData.data[c+1]=g;
          imageData.data[c+2]=b;
          imageData.data[c+3]=255;
          c+=4;
     if(c>=320*240*4) {
          c=0;
          gCtx.putImageData(imageData, 0,0);
function captureToCanvas() {
     flash = document.getElementById("embedflash");
     flash.ccCapture();
     var canvEle = document.getElementById('canvas');
     $s('P2_IMAGE_BASE64', canvEle.toDataURL());//Assumes hidden item name is P2_IMAGE_BASE64
     clob_Submit();//this is a part of part (AJAX submit value to a collection) two
}In the footer region of the page (which is just a loading image to show whilst the data is being submitted to the collection [hidden by default]) :<img src="#IMAGE_PREFIX#processing3.gif" id="AjaxLoading"
style="display:none;position:absolute;left:45%;top:45%;padding:10px;border:2px solid black;background:#FFF;" />If you give it a quick test, you should be able to see the webcam feed and capture it into the canvas element by clicking the capture link, in between the two elements - it might through a JS error since the clob_Submit() function does not exist yet.
*Part 2. Upload the image into the Database*
As mentioned in the overview, the main limitation is that APEX can't submit values larger than 32k, which I hope the APEX development team will be fixing this limitation in a future release, the workaround isn't really good from a maintainability perspective.
In the sample applications, there is one that demonstrates saving values to the database that are over 32k, which uses an AJAX technique: see http://www.oracle.com/technetwork/developer-tools/apex/application-express/packaged-apps-090453.html#LARGE.
*Required Files*
From the sample application, there is a script you need to upload, and reference in your page. So you can either install the sample application I linked to, or grab the script from the demonstration I have provided - its called apex_save_large.js.
*Create a New Page*
Create a page to Post the large value to (I created mine as 1000), and create the following process, with the condition that Request = SAVE. (All this is in the sample application for saving large values).declare
     l_code clob := empty_clob;
begin
     dbms_lob.createtemporary( l_code, false, dbms_lob.SESSION );
     for i in 1..wwv_flow.g_f01.count loop
          dbms_lob.writeappend(l_code,length(wwv_flow.g_f01(i)),wwv_flow.g_f01(i));
     end loop;
     apex_collection.create_or_truncate_collection(p_collection_name => wc_pkg_globals.g_base64_collection);
     apex_collection.add_member(p_collection_name => wc_pkg_globals.g_base64_collection,p_clob001 => l_code);
     htmldb_application.g_unrecoverable_error := TRUE;
end;I also created a package for storing the collection name, which is referred to in the process, for the collection name:create or replace
package
wc_pkg_globals
as
g_base64_collection constant varchar2(40) := 'BASE64_IMAGE';
end wc_pkg_globals;That is all that needs to be done for page 1000. You don't use this for anything else, *so go back to edit the camera page*.
*Modify the Function and Global Variable Declarations* (to be able to submit large values.)
The below again assumes the item that you want to submit has an item name of 'P2_IMAGE_BASE64', the condition of the process on the POST page is request = SAVE, and the post page is page 1000. This has been taken srtaight from the sample application for saving large values.//32K Limit workaround functions
function clob_Submit(){
          $x_Show('AjaxLoading')
          $a_PostClob('P2_IMAGE_BASE64','SAVE','1000',clob_SubmitReturn);
function clob_SubmitReturn(){
          if(p.readyState == 4){
                         $x_Hide('AjaxLoading');
                         $x('P2_IMAGE_BASE64').value = '';
          }else{return false;}
function doSubmit(r){
$x('P2_IMAGE_BASE64').value = ''
     flowSelectAll();
     document.wwv_flow.p_request.value = r;
     document.wwv_flow.submit();
}Also, reference the script that the above code makes use of, in the page header<script type="text/javascript" src="#WORKSPACE_IMAGES#apex_save_large.js"></script>Assuming the script is located in workspace images, and not associated to a specific app. Other wise reference #APP_IMAGES#
*Set up the table to store the images*CREATE TABLE "WC_SNAPSHOT"
"WC_SNAPSHOT_ID" NUMBER NOT NULL ENABLE,
"BINARY" BLOB,
CONSTRAINT "WC_SNAPSHOT_PK" PRIMARY KEY ("WC_SNAPSHOT_ID")
create sequence seq_wc_snapshot start with 1 increment by 1;
CREATE OR REPLACE TRIGGER "BI_WC_SNAPSHOT" BEFORE
INSERT ON WC_SNAPSHOT FOR EACH ROW BEGIN
SELECT seq_wc_snapshot.nextval INTO :NEW.wc_snapshot_id FROM dual;
END;
Then finally, create a page process to save the image:declare
v_image_input CLOB;
v_image_output BLOB;
v_buffer NUMBER := 64;
v_start_index NUMBER := 1;
v_raw_temp raw(64);
begin
--discard the bit of the string we dont need
select substr(clob001, instr(clob001, ',')+1, length(clob001)) into v_image_input
from apex_collections
where collection_name = wc_pkg_globals.g_base64_collection;
dbms_lob.createtemporary(v_image_output, true);
for i in 1..ceil(dbms_lob.getlength(v_image_input)/v_buffer) loop
v_raw_temp := utl_encode.base64_decode(utl_raw.cast_to_raw(dbms_lob.substr(v_image_input, v_buffer, v_start_index)));
dbms_lob.writeappend(v_image_output, utl_raw.length(v_raw_temp),v_raw_temp);
v_start_index := v_start_index + v_buffer;
end loop;
insert into WC_SNAPSHOT (binary) values (v_image_output); commit;
end;Create a save button - add some sort of validation to make sure the hidden item has a value (i.e. image has been captured). Make the above conditional for request = button name so it only runs when you click Save (you probably want to disable this button until the data has been completely submitted to the collection - I haven't done this in the demonstration).
Voila, you should have now be able to capture the image from a webcam. Take a look at the samples from the CamCanvas API for extra effects if you wanted to do something special.
And of course, all the above assumed you want a resolution of 320 x 240 for the image.
Disclaimer: At time of writing, this worked with a logitech something or rather webcam, and is completely untested on IE.
Check out a demo: http://apex.oracle.com/pls/apex/f?p=trents_demos:webcam_i (my image is a bit blocky, but i think its just my webcam. I've seen others that are much more crisp using this) Also, just be sure to wait for the progress bar to dissappear before clicking Save.
Feedback welcomed.

Hmm, maybe for some reason you aren't getting the base64 version of the saved image? Is the collection getting the full base64 string? Seems like its not getting any if its no data found.
The javascript console is your friend.
Also, in the example i used an extra page, from what one of the examples on apex packages apps had. But since then, I found this post by Carl: http://carlback.blogspot.com/2008/04/new-stuff-4-over-head-with-clob.html - I would use this technique for submitting the clob, over what I have done - as its less hacky. Just sayin.

How to detect red frame in a series of images using web cam?

hey i am a new use of lab view(8.2 n 8.6).kindly ca any1 help me out in red color detection in a series of frames being capture by a usb web cam.i have done the grabbing thing but dont knw what to do now.plz help me out. basically i hve to do the following things:
1 )the camera is continuously making video
2)the moment a red color or red frame comes across the camera the camera is programmed such that it will capture that red frame. and display that captured frame
plz hep me out.i need serious help.
i am attaching a vi that is grabbing the images and then xtracting the red color info n thn displyaing its intensities rows and coumn wise on a graph.here i have used a guassian surface to locate the red color.
Solved!
Go to Solution.
Attachments:
giving intensity of red color.vi ‏78 KB

hey,i have made the code plz chk it and do rep soon as ma project sbmission date is very near =((
i am snaping an image from the web cam then comparing it with the red colored jpg image made in paint.
the jpg image is converted to give input image to imaq match vi.but after the comparison it gives the same output.
on the front pannel the snapped image is displayed,the red colored image that is converted in to its respective pixels is displayed and the image that is obtained after cheking the image in the draw fails vi...the pic converted to pixels is all the time displayed.and the pass/fail icon always denotes one pass led on..plz chk the code =((.
also can u provide me some guide line for using thr hough transform for the red color detection in lab view..i dont have to import the matlab code..i have to purely make it using the lb view libraries.
also one more request pl rep me regularly as i really need your golden piece of advice for ma success.
thnx
Attachments:
picture to image(BY ME).vi ‏102 KB
untitled.JPG ‏3 KB

What web cam(s) actually work with my macbook pro? (os10 ver 10.6.8)

What is the best (out of the box running) web cam for a macbook pro? ( I'm running os10.6.8) Little background below:
Man I'm confused! I see that the logitech c910 web cam works with the mac but then I also see that it only "sort of " works..... huh?? I got my macbook pro because its software instantly recognized me as the dummy. Very "turn key" user friendly stuff with the MAC and great for music stuff which is what I do for a living. One of my jobs is part time guitar instructor at a community college and I'm hoping to create digested vids of the sessions to help students that miss class. I'd like to edit the videos in imovie and have some text/music stuff on the screen as well. I knew there would be a little learning curve and it would take a while to get comfortable but I can't even get the camera to get started! Any suggestions would help. Especially from anyone who has done guitar stuff before i.e. youtube etc....thanks

I am embarrassed how simple that was. I did warn you that I'm technologically challenged; I'm pretty sure that proved it.
The external hard drive is formatted as Mac OS Extended (Journaled). The link you provided indicates the external drive will work with Time Machine. I've never worked with Time Machine and don't know what my next step should be. Would you please walk me through it?
Your help is greatly appreciated. From the points you have accumulated, I can tell you have helped many others and I thank you for your generosity.

Logitech usb web camera

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