can i get the source code for obtaining 30fps from a video signal??

actually i need a matlab source code for obtaining frames(jpg png) from a video signal of any format..

[Matt Kindig]

Without knowing anything about your video signal, we will be unable to offer much in the way of assistance. Are you trying to read an existing video file (*.avi, *.mpeg, etc.) into frames? Or are you trying to capture frames from a video camera in real time? What is your overall goal?

[Matt Kindig]

You still haven't answered any of the questions I posted above. Are you trying to do the analysis in real-time, or from an existing video? What type of hardware (camera, etc.) are you using?

[Mohd Aquib]

analysis in realtime using camera

[Mohd Aquib]

hi Matt Kindig sir...plz help me

[Walter Roberson]

What kind of hardware are you using? Make and model number. Also, what size of image do you need?

[Mohd Aquib]

20.2 Mega Pixel R Series 3.6x Optical Zoom Cyber-shot Model:DSC-RX100.......sizeof the image is not more than 1MB

wont the code work for various models...i mean generic

[Walter Roberson]

The larger the image the slower the frame rate that becomes practical because the maximum bandwidth is limited.

[Mohd Aquib]

can u only give me a generic code for extracting frames from video in realtime(i.e. camera of any model)

[Walter Roberson]

Do you have the Computer Vision toolbox? Do you have the Image Acquisition Toolbox? Do you have the Instrument Control toolbox?

[Mohd Aquib]

none of these...since i am a student of computer science and doing a project in a deffence organisation i had asked a toolkit but mathwork isnt providing me cuz m a student..so what i shd do??? plz help me

[Walter Roberson]

Student Version does have Instrument Control.

The other two I mentioned can be added on to a Student Version license, as can be the Data Acquisition Toolbox; see http://www.mathworks.com/academia/student_version/companion.html

What kind of processing will be done on the image?

What kind of interface will you be using? That will determine which of the toolkits is needed to get the data into place. Are you still needing to use HDMI interface?

We could give you generic code for accessing an attached web camera, but you asked for "real time" and web cameras are often not suited for real-time work.

[Mohd Aquib]

ok give me atfirst generic code for accessing a webcmera let me try it first...so that i cd have sm acquaintence actually i have to do image acquisition..using camera and i dont have ny kit

[Mohd Aquib]

thanks

Answer 1

[Walter Roberson]

See the demo in response #5 at http://www.mathworks.com/matlabcentral/newsreader/view_thread/302791

Answer 2

[Walter Roberson]

I have gone through the manual and specifications for the Sony DSC-RX100, and I find that the only way to get movies to display "live" (realtime) outside the camera, is to connect the camera via HDMI. It cannot be done with that camera by its USB interface.

It is uncommon for computers to offer HDMI capture. You will need special hardware. I am not certain whether the Image Acquisition Toolkit would support that hardware; you might need to use the Data Acquisition Toolkit, and might need to do a bit of work to adjust a driver.

http://forums.ni.com/t5/Machine-Vision/HDMI-acquisition/td-p/1884643