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Monthly Archives: January 2011
Comparing the Efficiencies of Gaussian Convolution Routines
These days I quite often need to convolve (i.e., smooth) 2D images by some Gaussian. There are quite a few routines that can do this with varying efficiencies. So I compared a couple of them. On my laptop, this script … Continue reading
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Tagged astro, computing, programming, Python, reference, research
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Using NTP Server to Synchronize Time on Debian Squeeze
I want the time of my computer to get synchronized with a reliable time server. To do this, install ntp: $ sudo aptitude install ntp $ sudo /etc/init.d/ntp restart After restarting the NTP server (the second line above) the system … Continue reading