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How can I check if an argument is defined when starting/calling a batch file?
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The check for whether a commandline argument has been set can be [%1]==[], but, as Dave Costa ...
How to get all subsets of a set? (powerset)
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The Python itertools page has exactly a powerset recipe for this:
from itertools import chain...
PHP best way to MD5 multi-dimensional array?
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Image Segmentation using Mean Shift explained
... from good sources elsewhere.
Let's look at the center of your matrix:
153 153 153 153
147 96 98 153
153 97 96 147
153 153 147 156
With reasonable choices for radius and distance, the four center pixels will get the value of 97 (their mean) and will be different form the...
Array to Hash Ruby
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a = ["item 1", "item 2", "item 3", "item 4"]
h = Hash[*a] # => { "item 1" => "item 2", "item 3" => "item 4" }
That's it. The * is called the splat operator.
One caveat per @Mike Lewis (in the comments): "Be very careful with...
SQL Server: Make all UPPER case to Proper Case/Title Case
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How can I sharpen an image in OpenCV?
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One general procedure is laid out in the Wikipedia article on unsharp masking:
You use a Gauss...
Convert light frequency to RGB?
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answered Sep 24 '09 at 15:47
Stephen MesaStephen Mesa
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Clojure 1.2.1/1.3/1.4 'proxy generated in Grails 2.0.0 runtime fails. 1.2.0 is fine
... working on extending the Grails Clojure plugin in Grails 2.0.0 (and 2.1.0-SNAPSHOT) and I wanted to update it to Clojure 1.3.0 and add clojure.tools.logging .
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python pandas remove duplicate columns
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edited Aug 23 '19 at 13:30
Jean-François Corbett
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