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File Exchange Pick of the Week

January 18th, 2008

Cool Feature: Video processing demos

Thank you to everyone that answered the survey from my last post. I will be processing the results and reporting in my next post.

Changes are already being planned based on the results.

This three minute video shows you how to view product demos in the Video and Image Processing blockset. Motion detection and tracking is covered in the first demo and photo mosaicking from video is covered in the second.

Video Content

Find the files here.
PodCast here

Other videos have been gathered here:
http://blogs.mathworks.com/pick/category/video/

Other cool feature posts have been gathered here:
http://blogs.mathworks.com/pick/category/cool-feature/

5 Responses to “Cool Feature: Video processing demos”

  1. Szymon Gackowski replied on :

    ok, that is really cool. But is there any possibility to do this in real time using data aquisition? how to aquire data from usb web cam?
    best regards!
    Simon

  2. Bruce Tannenbaum replied on :

    Hi Szymon,

    With the Image Acquisition Toolbox, you can acquire images or video into Simulink and/or MATLAB. For Simulink, you would use the “From Video Device” block. This supports USB web cameras, as well as a broad range of frame grabbers and scientific digital cameras. For more information on the supported hardware, look here: http://www.mathworks.com/products/imaq/supportedio.html

    - Bruce

  3. Szymon Gackowski replied on :

    Thank you Bruce!
    That was very helpful!

  4. elya replied on :

    hi,i’m using MATLAB 7.0.

    i’m a beginner. I want to read/call video (.avi) file in MATLAB but i couldn’t find any function. how to call the video (.avi) in matlab? how to extract the video frame by frame?

    thanks

  5. Scott Hirsch replied on :

    Elya -

    In v7.0, try aviread. This has straightforward syntax for reading a single frame - you could just embed in a for loop if that’s appropriate.

    Readers with newer versions should check out mmreader - introduced on Windows in R2007b, Mac in R2008a.

    - scott

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Bob, Brett & Jiro share their favorite user-contributed submissions from the File Exchange.

  • Doug: Gamal, That is something that can be done. Do you have the Data Acquisition toolbox? What have you tried, can...
  • Gamal: Dear Sir, I am working in a project that i use an Analogue to digital converter HW to transfer analogue...
  • Berdakh Abibullaev: Great! This is very convinient to use. But I use matlab codes for opening the data and...
  • jiro: Mahmood, It’s probably best to ask the author of the tool for specific questions regarding the...
  • Mahmood: Hi there, when I run this program application, it gives me the following error ??? Error using ==>...
  • Brett: Hi M, Back from vacation…just downloaded DEMORSE, and ran it on the WAV file I created for this post....
  • Quan Quach: Doug is my favorite MathWorks blogger. Loren is also my favorite. That Mike guy not so bad. So Arthur got...
  • Doug: Maram, You might want to look at the Database toolbox. http://www.mathworks .com/products/databa se/ Doug
  • Bob: Nayaki, if you need additional help using a File Exchange submission, you might try contacting the author. You...
  • maram: hi, I have a question I have a matlab code and i want to read a data from SQL server database to use it in...

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