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“Diff” an image using ImageMagick
How can I get the difference between two images? I have the original image. Someone has written on an exact duplicate of the original image. Now, I need to compare the original to the written on image and extract just the writing in image format.
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What does gcc's ffast-math actually do?
I understand gcc's --ffast-math flag can greatly increase speed for float ops, and goes outside of IEEE standards, but I can't seem to find information on what is really happening when it's on. Can anyone please explain some of the details and maybe give a clear example of how something would chan...
Master-master vs master-slave database architecture?
I've heard about two kind of database architectures.
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Why escape_javascript before rendering a partial?
I'm looking at this Railscast episode and wondering why the call to escape_javascript is needed here:
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Why use Ruby's attr_accessor, attr_reader and attr_writer?
Ruby has this handy and convenient way to share instance variables by using keys like
5 Answers
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Get last element of Stream/List in a one-liner
How can I get the last element of a stream or list in the following code?
6 Answers
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The difference between the 'Local System' account and the 'Network Service' account?
I have written a Windows service that spawns a separate process. This process creates a COM object. If the service runs under the 'Local System' account everything works fine, but if the service runs under the 'Network Service' account, the external process starts up but it fails to create the COM o...
call a static method inside a class?
how do i call a static method from another method inside the same class?
4 Answers
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PEP 8, why no spaces around '=' in keyword argument or a default parameter value?
Why does PEP 8 recommend not having spaces around = in a keyword argument or a default parameter value ?
6 Answers
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