How do you zoom in and out while on a Skype call?

I am using a Logitech Webcam Pro 9000 and Skype 2.2.0.25 and Ubuntu 11.04. I can not figure out how to zoom in and out during a video chat, although it is possible under windows using Logitech's software. Is this function supported under Skype and Ubuntu 11.04?

I didn't find how to do this directly in Skype, but I could do this with a third-party GUI software: v4l2ucp (which you can install with this link). It is a control panel for v4l which normally handles Logitech webcams (my HD Pro C920 was supported out of the box).

Here is what it looks like:

At the very bottom you have a Zoom, Absolute cursor that will allow you to zoom in and out, and adjust other settings too. The changes are reflected in real time in Skype.

As a small bonus, I wrote the following script to zoom in 150%, and set the video format to 1080p@30fps:

#!/bin/sh
v4l2-ctl --set-ctrl=zoom_absolute=150
v4l2-ctl --set-fmt-video=width=1920,height=1080,pixelformat=1
v4l2-ctl --set-parm=30

saved it to a file and set it to run automatically when my session starts. 150% is what worked best for me, and I can still change it dynamically with v4l2ucp whenever I want.

The old keyboard shortcut works for many programs; give it a try while you have Skype open:

Ctrl +

From terminal you can try the video adjustment package that's listed as supported for your model:

guvcview -o

Read more about it here. To install guvcview:

sudo apt-get install guvcview