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How can I quantify difference between two images?
...f we compare image to itself, there is no difference:
$ python compare.py one.jpg one.jpg
Manhattan norm: 0.0 / per pixel: 0.0
Zero norm: 0 / per pixel: 0.0
If we blur the image and compare to the original, there is some difference:
$ python compare.py one.jpg one-blurred.jpg
Manhattan norm: 92...
Change the name of a key in dictionary
...
Easily done in 2 steps:
dictionary[new_key] = dictionary[old_key]
del dictionary[old_key]
Or in 1 step:
dictionary[new_key] = dictionary.pop(old_key)
which will raise KeyError if dictionary[old_key] is undefined. Note that this...
Why is unsigned integer overflow defined behavior but signed integer overflow isn't?
...tations for signed values that may differ according to the implementation: one's complement, two's complement, sign-magnitude. For an unsigned type there is no reason for the standard to allow variation because there is only one obvious binary representation (the standard only allows binary represen...
Reference one string from another string in strings.xml?
...d Sep 8 '17 at 19:22
Joseph Garrone
90899 silver badges1515 bronze badges
answered Oct 5 '16 at 9:29
Beeing Jk...
How does StartCoroutine / yield return pattern really work in Unity?
...oft referenced Unity3D coroutines in detail link is dead. Since it is mentioned in the comments and the answers I am going to post the contents of the article here. This content comes from this mirror.
Unity3D coroutines in detail
Many processes in games take place over the course of mult...
Python “extend” for a dictionary
What is the best way to extend a dictionary with another one while avoiding the use of a for loop? For instance:
7 Answer...
Check if a string contains one of 10 characters
I'm using C# and I want to check if a string contains one of ten characters, *, &, # etc etc.
6 Answers
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One line if statement not working
... value. There is no need for the conditional operator to even exist, let alone use it.
BTW: it is customary to name methods which are used to ask a question with a question mark at the end, like this:
@item.rigged?
This shows another problem with using the conditional operator in Ruby:
@item.ri...
How do I use WPF bindings with RelativeSource?
...ource={RelativeSource TemplatedParent}}
or, shorter (this only works for OneWay bindings):
{TemplateBinding Path=PathToProperty}
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Error Code: 1005. Can't create table '…' (errno: 150)
...is problem on the Internet and checked the Stack Overflow questions, but none of the solutions worked for my case.
13 Answ...