RE: [Vxl-users] Using VXL with an IEEE 1394 Camera

[Ian S. <ian...@st...>]

> Is it possible to get the raw from an imaging source like for=20
> example this
> IC library and then generate a VXL image without any memory copy?

I don't know about the IC library, but VXL can very cheaply wrap an =
existing image buffer, after which you can run all the standard image =
processing commands on it.

see the relevant vil_image_view<T> constructor for more details.
http://paine.wiau.man.ac.uk/pub/doc_vxl/core/vil/html/classvil__image__vi=
ew.html#vil__image__viewa2

>=20
> We are aiming for a framerate of approximately 30 FPS with 8 bit
> monochrome images at 1024x768. Is it crazy to believe that=20
> VXL can be used
> to process this amount of data?=20

VXL is pretty efficient, so the speed of processing depends almost =
entirely on what you want to do, and how fast your processor is. =
Processing about 25 million bytes per second does not leave much time to =
more than ~50 machine instructions per second on a modern processor. So, =
you'll be pretty restricted in what you can do, whatever software =
package you use. However, the overhead of wrapping a framebuffer in a =
vil_image_view 30 times a second will be pretty trivial.

Ian.