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How can I measure the similarity between two images? [closed]
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2 histograms from 2 halves of image will have better matching precision than 1 histogram of a whole. Though it has drawbacks you mentioned, it depends on what problem you are solving.
– psycho brm
Oc...
Am I immoral for using a variable name that differs from its type only by case?
...was no semantic meaning I could give a primitive I would use i or s, apart from loop indices I cant't think of any other such scenario.
– AnthonyWJones
Jan 20 '09 at 13:19
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How to delete a stash created with git stash create?
...etails.
You don't need to delete a stash created with git stash create. From the docs:
Create a stash entry (which is a regular commit object) and return its object name, without storing it anywhere in the ref namespace. This is intended to be useful for scripts. It is probably not the comman...
How did I get a value larger than 8 bits in size from an 8-bit integer?
...rsion specifier %i in printf has no idea that the argument originally came from int8_t calculations; it is just working with an int argument.
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fo...
Why are mutable structs “evil”?
...e around.
If your struct is immutable then all automatic copies resulting from being passed by value will be the same.
If you want to change it you have to consciously do it by creating a new instance of the struct with the modified data. (not a copy)
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How to get current time and date in Android
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But where does this pull the date and time from? the android device setting itself?
– Kyle Clegg
May 17 '12 at 20:29
12
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Least common multiple for 3 or more numbers
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Some Python code that doesn't require a function for gcd:
from sys import argv
def lcm(x,y):
tmp=x
while (tmp%y)!=0:
tmp+=x
return tmp
def lcmm(*args):
return reduce(lcm,args)
args=map(int,argv[1:])
print lcmm(*args)
Here's what it looks like in the ter...
What does glLoadIdentity() do in OpenGL?
...rrent state. So for instance, if you call glTranslate, you are translating from the matrix's current 'position', not from the origin. But if you want to start over at the origin, that's when you call glLoadIdentity(), and then you can glTranslate from the matrix which is now located at the origin, o...
Emacs in Windows
...seful packages such as Nxml
it has a Windows installer or you can build it from sources
And concerning XEmacs, according to this post by Steve Yegge:
To summarize, I've argued that XEmacs has a much lower market share, poorer performance, more bugs, much lower stability, and at this point prob...
Android phone orientation overview including compass
...stem changes when you rotate the device. Thus, when the device is rotated from its default view mode, the sensor coordinate system is no longer the same as the screen coordinate system. The rotation matrix in this case is used to transform A to C (B always remains fixed).
Here's a code snippet to...