Various Consequences

There are some good examples floating around of creating customized image processing kernels in the python imaging library (PIL). It'...

In image processing the discrete difference operators to calculate gradients and second derivatives are called "masks". They are o...

I just wanted to put in another plug for Maxima , the open source computer algebra system that I use regularly. The great thing about using...

What would an integrated development environment for numerical algorithms look like? To me it looks a lot like Fedora . That’s right, Fedora...

I felt like peer review is under attack after reading the second Slashdot article in as many days ( 1 and 2 ) about embarrassing failures ...

In a previous post we found that speeding up Octave amounted mostly to avoiding for loops. The simplest way to do that is to operate direc...

I can't really decide on the best way to treat the different channels (red, green, blue) in a color image when doing edge detection. I...

I signed up for Google Analytics , which collects bunches of neat data. One of the interesting reports is on the number of views each page ...

To solve Laplace's equation with a complex step finite difference we needed to develop asymmetric difference relations to solve on the ...