 |  |  |  |  |  |  |  |
How to capture and store images using a web cam in C?
Please support our C advertiser: Programming Forums - DaniWeb Sister Site
 |
Hi,
I want to know how to capture and store images using a webcam in C? I searched this many places I did not get it.If somebody knows it please tell me.
I want to know how to capture and store images using a webcam in C? I searched this many places I did not get it.If somebody knows it please tell me.
http://msdn.microsoft.com/en-us/libr...8VS.85%29.aspx
I think you should start there, but it's gonna be quite a lot of work I'm afraid. I've never done it myself, but that link seems to be good. If you are on Windows, that is.
If you like examples and hadn't found it yet: http://msdn.microsoft.com/en-us/libr...8VS.85%29.aspx
I think you should start there, but it's gonna be quite a lot of work I'm afraid. I've never done it myself, but that link seems to be good. If you are on Windows, that is.
If you like examples and hadn't found it yet: http://msdn.microsoft.com/en-us/libr...8VS.85%29.aspx
Last edited by Clockowl; May 23rd, 2008 at 6:22 pm. Reason: Added tutorial link
•
•
Join Date: Feb 2008
Posts: 1,669
Reputation: 
Solved Threads: 123
what are you trying to do exactly?
start and stop a webcam, or engage some of its other functions, just in an automated fashion?
or will this also involve interpreting the image files in some manner?
.
start and stop a webcam, or engage some of its other functions, just in an automated fashion?
or will this also involve interpreting the image files in some manner?
.
Last edited by jephthah; May 23rd, 2008 at 6:30 pm.
Not to be an ******* but poster says he wants to capture and store image data from a webcam. That's pretty specific, not?
•
•
Join Date: Feb 2008
Posts: 1,669
Reputation:
Solved Threads: 123
if you're just trying to send commands to blindly operate it, then the easiest (as in "hackiest" and least-portable) way to do this is to send the camera system() commands
this requires that you know the command line interface to the webcam... and that it even has one.
this requires that you know the command line interface to the webcam... and that it even has one.
I actually have a robort on which a camera mounted.I need to write a C code in that robort's embeded system so that it will be able to capture an image autonomously when a condition is satisfied.And then I will store the image , compress it and transmit.
•
•
Join Date: Feb 2008
Posts: 1,669
Reputation:
Solved Threads: 123
•
•
•
•
Originally Posted by Clockowl 
Not to be an ******* but poster says he wants to capture and store image data from a webcam. That's pretty specific, not?
Okay, here's the deal, ass: I've learned in my short time here that new posters tend to trickle out details of their requirements, little by little.
Y'see, ass, im trying to shorten the process a bit. Does he really just want to blindly snap pictures, ass? Or is there going to be some sort of dynamic feedback control?
Either way is fine, ass, but before i go too far in looking for a solution, I want to understand the full problem.
.
Last edited by jephthah; May 23rd, 2008 at 6:43 pm.
•
•
Join Date: Feb 2008
Posts: 1,669
Reputation:
Solved Threads: 123
•
•
•
•
Originally Posted by charkac
I actually have a robort on which a camera mounted.I need to write a C code in that robort's embeded system so that it will be able to capture an image autonomously when a condition is satisfied.And then I will store the image , compress it and transmit.
i'm going to first admit, i have never done anything involving this, so i'm making some semi-informed guesses.
what is the make and model of the web cam? is it a COTS device? do you have latitude in choosing which device to use, or are there a few devices that have been spec'd?
•
•
Join Date: Feb 2008
Posts: 1,669
Reputation:
Solved Threads: 123
okay, first thing you should do is look for "command line interface" in the documentation for your cam. once you find that, then look into the C command, "system()" ... if your cam has no command line interface you may want to consider getting your money back and finding one that does.
i am leaving soon and will not be able to follow up with this until later tonight.
im sure there will be a solution. just keep plugging at it.
i am leaving soon and will not be able to follow up with this until later tonight.
im sure there will be a solution. just keep plugging at it.
Last edited by jephthah; May 23rd, 2008 at 7:31 pm.
|
Other Threads in the C Forum
- Previous Thread: Small coding (XOX) human vs computer (to be paid)
- Next Thread: find and replace string in a text file
| Thread Tools | Search this Thread |
Latest C Posts
- Today's Posts
- Unanswered Threads
Related Forum Features
Tag cloud for C
#include * append array arrays asterisks binarysearch calculate changingto char character cm copyimagefile cprogramme creafecopyofanytypeoffileinc database directory dynamic execv feet fgets file fork forloop framework function givemetehcodez grade graphics gtkwinlinux hacking histogram homework inches include incrementoperators input intmain() iso kernel keyboard km lazy license linked linkedlist linux list lists locate logical_drives looping loopinsideloop. lowest matrix microsoft motherboard mqqueue number oddnumber odf opendocumentformat opensource overwrite owf pdf performance pointer posix problem probleminc process program programming radix recursion recv recvblocked research reversing scanf scripting segmentationfault sequential socket socketprograming spoonfeeding standard string student systemcall testing threads turboc unix user variable wab whythiscodecausesegmentationfault windowsapi
