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How to crop an image in OpenCV using Python
...copy region of interest
If we consider (0,0) as top left corner of image called im with left-to-right as x direction and top-to-bottom as y direction. and we have (x1,y1) as the top-left vertex and (x2,y2) as the bottom-right vertex of a rectangle region within that image, then:
roi = im[y1:y2, x1...
How to add an extra column to a NumPy array
...for a way to add a bias unit to my artificial neuronal network in batch on all layers at once, and this is the perfect answer.
– gaborous
Aug 18 '16 at 15:07
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Perform commands over ssh with Python
...to automate some command line commands in Python. At the moment I'm doing calls thus:
13 Answers
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What does the variable $this mean in PHP?
I see the variable $this in PHP all the time and I have no idea what it's used for. I've never personally used it.
10 An...
Implement touch using Python?
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On Python2.7: pip install pathlib
– Andre Miras
Oct 24 '17 at 17:54
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Is there a way to instantiate objects from a string holding their class name?
...initializing or assigning to it. Have a look at its documentation here. Finally, the use of a raw function pointer is also a bit oldish. Modern C++ code should be decoupled from specific functions / types. You may want to look into Boost.Function to look for a better way. It would look like this the...
Passing a std::array of unknown size to a function
...way to make this work, as one would with plain C-style arrays?
No. You really cannot do that unless you make your function a function template (or use another sort of container, like an std::vector, as suggested in the comments to the question):
template<std::size_t SIZE>
void mulArray(std:...
jQuery: Select data attributes that aren't empty?
I'm trying to select all elements that have a data-go-to attribute that is not empty.
11 Answers
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Change SVN repository URL
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Didn't know about the switch command all the documentation I found online is for newer versions.
– Dustin Cook
Feb 10 '16 at 9:54
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What algorithm does Readability use for extracting text from URLs?
... the "relevant" text from a URL by eliminating the text related to ads and all the other clutter.After several months of researching, I gave it up as a problem that cannot be accurately determined. (I've tried different ways but none were reliable)
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