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How to merge a transparent png image with another image using PIL
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Image.paste does not work as expected when the background image also contains transparency. You need to use real Alpha Compositing.
Pillow 2.0 contains an alpha_composite function that does this.
background = Image.open("test1.png")
f...
Fully backup a git repo?
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what about file permissions? does git clone necessarily copy those over? depends on the options i believe
– antirealm
Jan 15 '18 at 6:16
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What is referential transparency?
What does the term referential transparency mean? I've heard it described as "it means you can replace equals with equals" but this seems like an inadequate explanation.
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Where can I learn how to write C code to speed up slow R functions? [closed]
... C. One major one would seem to be that C++ is much more complex that C - does this make it harder to use? (Or in practice, can you write C++ code that's very similar to C?) I would also appreciate more reference material that's aimed at new users who are not familiar with the existing C api.
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RegEx for matching UK Postcodes
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I can't get this to work in JavaScript. Does it only work with certain regex engines?
– NickG
Mar 27 '14 at 9:57
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What's “P=NP?”, and why is it such a famous question? [closed]
...f whether P=NP is perhaps the most famous in all of Computer Science. What does it mean? And why is it so interesting?
6 An...
Is there a way to get the XPath in Google Chrome?
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Interesting how Ctrl+Space doesn't reveal $x. If you just type $x you can see how it's achieved, therefore the OP should be able to determine how to achieve what they want. For example; document.evaluate('//h1', document, null, XPathResult.STRING_TYPE,...
Clear a terminal screen for real
... of of backslash escapes
# -n Do not output a new line
KDE
The above does not work on the KDE console (called Konsole) but there is hope! Use the following sequence of commands to clear the screen and the scroll-back buffer...
clear && echo -en "\e[3J"
Or perhaps use the following a...
Is C++ context-free or context-sensitive?
...e computation could be performed by a linear-bounded Turing machine, so it does not quite prove Turing equivalence, but the important part is that the parser needs to perform the computation in order to perform syntactic analysis. It could have been any computation expressible as a template instanti...
How to convert an Array to a Set in Java
...atchadourian This is not necessarily being done in parallel. Arrays.stream does not make any promises on the stream. You would have to call parallel() on the resulting stream for that.
– Felix S
Jan 20 '16 at 11:41
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