Motion JPEG (NI Vision) Details

[SeanJ]

Hi All,

I have been asked to specify the level of compression performed by Motion JPEG (NI Vision).  I can't find the details of the codec anywhere.

Can anyone point me to the details of the Motion JPEG (NI Vision) codec?

Thanks,

Seán

[zou]

If you are creating an AVI file, you can use IMAQ AVI2 Create.

You can specify the codec and the quality.

[SeanJ]

Hi Zou, 

That is what I did and I selected MJPEG (NI VISION).  I would like to know the details of the codec, e.g. what is the compression level, etc.

Rgds,

Seán

[Bob_Schor]

There doesn't seem to be a lot of information here.  I looked at one of my IP Cameras, and found a Camera Attribute called JPEG Compression, set to a default value of 30.  I have not played with this to see what it does, either to image quality or image size.  Note that this (I think) is "within-frame" compression -- there is also "between-frame" compression ...

Bob Schor