[SIP-devel] new interf_demo + pbs

[DRUEL J. <joc...@li...>]

Hi,
Still working on my gui (renamed interferometry_demo by Ricardo), I send you 
my last developments.
The main differences from the interferometry_dem included in the developement 
distribution are:
1) a new menu: laser beams to display and calculate gaussian profiles (test 
with the laser_beam image sent)
2) 2 functions to take pictures from a video camera using xawtv. We use a 
cheap miroPCTV for this (about 50$). This works on linux only of course.
3) modifications to use gray_imread:
I replaced many gray_imread by gray_imread/2555 because I had problems with 
displaying or tracing profiles. I don't exactly know why.

The gray_imread function is much much slower than imread when I read 
grayscale pictures. A test on my box gave: 2.4 and 0.26 (estimated by 
timer()). That's a pb for me (specially as I read several images to make some 
calculations). 
Why not modify the gray_imread so that with a grayscale image, it does simply 
an imread ? Does it cause pbs ?

Best regards
Jocelyn 
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