IMAQ Vision - Writing Image Files: File Format

[simons@ifm.mavt.ethz.ch]

Hi,

I want to save some images in LabView 5.1.1 - IMAQ Vision 2.2.1 acquired by
a camera. Several file formats are supported:

BMP, JPEG, PNG and TIFF

For me the PNG format seems to the most attractive one as it provides
lossy-less compression and platform independentness. But, in the manual
there is a comment which I don't understand: It says that the PNG format is
not recommend for precise gauging or inspection measurements - and that is
exactly what I want to do.
I always thought that once an image file is loaded into LabView there is no
difference regarding to the file format the images were saved in. Can anyone
explain me, what the problem of the PNG format is? Which format can you
recommend for preci
se gauging instead (BMP?)?


Thanks,
Gerd Simons

[simons@ifm.mavt.ethz.ch]

one correction:
I use IMAQ Vision 5.0 and NI-IMAQ 2.2.1.

Gerd Simons


"Gerd Simons" wrote in message
news:3a3e0fa0@pfaff.ethz.ch...
> Hi,
>
> I want to save some images in LabView 5.1.1 - IMAQ Vision 2.2.1 acquired
by
> a camera. Several file formats are supported:
>
> BMP, JPEG, PNG and TIFF
>
> For me the PNG format seems to the most attractive one as it provides
> lossy-less compression and platform independentness. But, in the manual
> there is a comment which I don't understand: It says that the PNG format
is
> not recommend for precise gauging or inspection measurements - and that is
> exactly what I want to do.
> I always thought that once an image file is loaded into LabView there is
no
> difference regarding to the fil
e format the images were saved in. Can
anyone
> explain me, what the problem of the PNG format is? Which format can you
> recommend for precise gauging instead (BMP?)?
>
>
> Thanks,
> Gerd Simons
>
>