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Checking images for similarity with OpenCV
...atching identical images ( same size/orientation )
// Compare two images by getting the L2 error (square-root of sum of squared error).
double getSimilarity( const Mat A, const Mat B ) {
if ( A.rows > 0 && A.rows == B.rows && A.cols > 0 && A.cols == B.cols ) {
// ...
How can I recursively find all files in current and subfolders based on wildcard matching?
...cases, I have needed the -L parameter to handle symbolic directory links. By default symbolic links are ignored. In those cases it was quite confusing as I would change directory to a sub-directory and see the file matching the pattern but find would not return the filename. Using -L solves that ...
How to clear the cache in NetBeans
...
Based on the nightmare errors I have solved by cleaning this cache, I'd say a big red "Clear Cache" button is required, along with the tooltip "In case all else fails".
– Atorian
Aug 17 '14 at 11:56
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Rotating a two-dimensional array in Python
...l list:
original = [[1, 2],
[3, 4]]
Lets break it down step by step:
>>> original[::-1] # elements of original are reversed
[[3, 4], [1, 2]]
This list is passed into zip() using argument unpacking, so the zip call ends up being the equivalent of this:
zip([3, 4],
[1...
Can I 'git commit' a file and ignore its content changes?
...a261
error: Your local changes to the following files would be overwritten by merge:
filename.ext
and will refuse to merge.
At that point, you can overcome this by either reverting your local changes, here’s one way:
$ git checkout filename.ext
then pull again and re-modify yo...
AtomicInteger lazySet vs. set
...res are eventually GCable. In such
cases, you can get better performance by avoiding
the costs of the null volatile-write. There are a few
other use cases along these lines for non-reference-based
atomics as well, so the method is supported across all of the
AtomicX classes.
For peopl...
NSLog/printf specifier for NSInteger?
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Good thinking by @steven-fisher. Avoid warning with: static inline long NSIntToLong(NSInteger i) {return (long)i;}
– Erik
Nov 3 '11 at 16:48
...
Merge git repo into branch of another repo
...nch in the destination repository
Added the source repository as a remote, by hitting the Settings button and adding the source repository.
Branches from both repository now show in the branch list. I used the merge tool to merge a branch from the source repository to my new destination repository's...
What is meant with “const” at end of function declaration? [duplicate]
... compiler error.
Another way of thinking about such "const function" is by viewing a class function as a normal function taking an implicit this pointer. So a method int Foo::Bar(int random_arg) (without the const at the end) results in a function like int Foo_Bar(Foo* this, int random_arg), and ...
git ignore vim temporary files
What is the correct way to make git ignore temporary files produced by vim in all directories (either globally across the system or locally for a single project)?
...