Live video noise reduction

[Namit]

Hi,

I have recently built a program to capture video via an usb easycap.

The problem is the live video has some kind of noise that runs up and down at a certain speed.

What can i do to remove all these noises?

Thank you for helping

[vsenthil957@gmail.com]

hi 

   Is this a labview related problem. if yes please give us more details or share your code.

regards

senthil

[Namit]

Hi, here's my code: 

I dont know whether it's a labview problem or not but i think there's something i can do for the image improvement in labview. I'm using a 75 Ohm Cable to transfer data from the machine to my laptop. 

I have IMAQ and IMAQdx installed.

[Namit]

Up...

[MangeshD]

Have you checked it in NI MAX?

[Bob_Schor]

Are you taking a video of a video display?  [That's what it looks like].  In which case you are observing a Moire pattern caused by having slightly different scan rates between your source (the video image) and your recorder (your video camera).  If you looked at a single video pixel, its brightness would not be constant, but would vary over time (particularly if the image was also a time-varying image), so your "digital sample" will have "digitizing noise" (changes in the least significant bits depending on exactly when the sample was obtained).

WYSIWYG (I hope you know what that means ...).

Bob Schor

[Namit]

Hi, i checked with NI MAX, still the same result And i dont think that im taking a video of a video display, the signal is transfered directly into my pc via the usb. When i plug the cable into an individual screen, the scanned image is so clear because there's no noise there?? What do you suggest? Thanks