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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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: After restarting the NTP server (the second line above) the system time should be synchronized within a couple minutes. On … Continue reading

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