Skip to Main Content Skip to Search
File Exchange
MATLAB Newsgroup
Link Exchange
  Blogs  
 Contest 
MathWorks.com

Steve on Image Processing

June 27th, 2007

Intruder detection example

MathWorks developer Dave L. created an Intruder Detection example to demonstrate how Image Acquisition Toolbox and Data Acquisition Toolbox can work together. The program displays live video and audio data acquired from a web cam and sound card. Whenever certain motion or sound thresholds are exceeded, an alarm will sound while the video and audio data are recorded to disk for 10 seconds.

Give it a look.

8 Responses to “Intruder detection example”

  1. frustrated replied on :

    Thanks.
    But it should have been said clear WHICH version of the toolbox we need to run this demo. After trying for 30 minutes, and trying upgrading and failed, etc, I only found this nice feature is not available to me yet(I am using 2006b).

  2. Steve replied on :

    Frustrated—It does give the release (2007a) on the File Exchange page. It’s right under the summary.

  3. Steve replied on :

    Frustrated—I admit that most developers tend to forget how far our “internal” calendars are offset from “real-world” calendars. That is, most of us finished our R2007a work last December or January, and now many of are already deep into planning R2008a, while many of our customers are still using R2006b or earlier.

  4. frustrated replied on :

    Thanks for pointing out, I was not careful checking that out before complaining.
    I will try to get my hands on the nice demo.

  5. Steve replied on :

    Frustrated—I’m going to try to get in the habit of putting version-checking code in my own MATLAB Central submissions, so that at least you’ll get a more helpful indication of what’s wrong. I’ll suggest it to others around here as well.

  6. frustrated replied on :

    Cool! I am amazed such a positive reaction! Keep up, I am always here to be your blog reader.
    best regards.

  7. Tahir Ahmed replied on :

    Hello,

    I am a student and i am new in matlab. I am trying to run your program to get some experience about video capturing and motion detection but i am facing some errors which are beyond my knowledge can you please help me out with these errors ?

    Thanks.

  8. Steve replied on :

    Tahir—The program is not mine. I simply provided a link to it.

Leave a Reply


Steve Eddins manages the Image & Geospatial development team at The MathWorks and coauthored Digital Image Processing Using MATLAB. He writes here about image processing concepts, algorithm implementations, and MATLAB.

  • Mikr: I look for answers before asking people… “But we still can’t see the coordinates!...
  • Steve: Mikr—You might want to take a look at the Getting Started section of the MATLAB documentation in order...
  • Mikr: thanks but is it possible to see and write to file (Excel ?) that matrix of pixel coordinates ? instead of...
  • Steve: Mikr—An image in MATLAB is simply a matrix of pixel values. It can be saved (exported) to several common...
  • Mikr: thanks, Steve just started to learn matlab and to clarify matlab saves image files as a matrix of pixel...
  • Steve: Mikr—As far as I know, the commonly used image file formats such as TIFF, JPEG, PNG, etc., do not...
  • Mikr: how to write pixel coordinates in file ?
  • Steve: M.S.—Code for the bwtraceboundaries function ships with the Image Processing Toolbox.
  • M.S.Cheema: i need to know the detailed algorithm for bwtraceboundaries. i want how that function works. so please...
  • Steve: Wagas—It depends on how much memory you have on your computer. You should be able to load a 94 MB TIFF...

These postings are the author's and don't necessarily represent the opinions of The MathWorks.

Related Topics