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How can I quantify difference between two images?
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General idea
Option 1: Load both images as arrays (scipy.misc.imread) and calculate an element-wise (pixel-by-pixel) difference. Calculate the norm of the difference.
Option 2: Load both images. Calculate some feature vector for each of them (l...
How to compare two Dates without the time portion?
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213
Update: while Joda Time was a fine recommendation at the time, use the java.time library from J...
Using -performSelector: vs. just calling the method
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191
Basically performSelector allows you to dynamically determine which selector to call a selecto...
What do the python file extensions, .pyc .pyd .pyo stand for?
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491
.py: This is normally the input source code that you've written.
.pyc: This is the compiled byt...
Selecting and manipulating CSS pseudo-elements such as ::before and ::after using jQuery
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edited Sep 28 '15 at 15:11
Eric
6,28455 gold badges3434 silver badges5959 bronze badges
answe...
How do I implement __getattribute__ without an infinite recursion error?
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129
You get a recursion error because your attempt to access the self.__dict__ attribute inside __...
What does @@variable mean in Ruby?
... is in the comments at the end of the puts lines:
class Test
@@shared = 1
def value
@@shared
end
def value=(value)
@@shared = value
end
end
class AnotherTest < Test; end
t = Test.new
puts "t.value is #{t.value}" # 1
t.value = 2
puts "t.value is #{t.value}" # 2
x = Test.new...
Why XML-Serializable class need a parameterless constructor
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edited Jul 1 '18 at 21:21
Mateusz Piotrowski
5,56688 gold badges4141 silver badges6666 bronze badges
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How to get client's IP address using JavaScript?
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Generic Repository With EF 4.1 what is the point
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edited May 23 '17 at 12:10
Community♦
111 silver badge
answered Apr 11 '11 at 20:04
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