[ros-users] publishing large images at high fps using image_transport

[Dejan Pangercic]

Hi there,

I using an attached program to read an image from a disk and to then
continously publish it on an image topic at 30 fps. On _one_ machine
over loopback. When I tried it with a 1608x1236+0+0 color image
(1.8MB) and then used rostopic hz to display the publishing rate of
topic,
the most that I got was around 12, 13 Hz.
Any idea what would cause such a low performance? At what rates and
sizes do you folks usually send images around?

thx and cheers, D.

-- 
MSc. Dejan Pangercic
PhD Student/Researcher
Computer Science IX
Technische Universität München
Telephone: +49 (89) 289-17780
E-Mail: dejan.pangercic at in.tum.de
WWW: http://ias.cs.tum.edu/people/pangercic
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