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How can I convert an RGB image into grayscale in Python?
I'm trying to use matplotlib to read in an RGB image and convert it to grayscale.
12 Answers
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Why are Subjects not recommended in .NET Reactive Extensions?
..., how do we publish it?
I would imagine that you would want a dedicated thread for polling. You wouldn't want some other coder hammering the ThreadPool/TaskPool and leaving you in a ThreadPool starvation situation. Alternatively you don't want the hassle of context switching (I guess). So assume we...
C pointer to array/array of pointers disambiguation
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I should have re-read what I wrote. I meant 4 for each pointer. Thanks for the help!
– George
May 13 '09 at 18:59
4
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Hidden Features of PHP? [closed]
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@Phoexo "little bit less read-able" ??? I never understanded and will never understand MSDN, while PHP docs are easy and clear.
– lauriys
Feb 13 '10 at 12:13
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Is GridFS fast and reliable enough for production?
... present in the grid... or... deliver it to the visitors browser if it's already stored in the grid. So, this could be called as a 'traditional cdn schema'.
We have stored and processed 4 million images on this server since it's up and running. The resize and store stuff is done by a simple php scr...
What's the correct way to sort Python `import x` and `from x import y` statements?
...various places beside PEP 8.
Alphabetically sorted modules are quicker to read and searchable. After all python is all about readability.
Also It is easier to verify that something is imported, and avoids duplicated imports
There is nothing available in PEP 8 regarding sorting.So its all about cho...
Detecting programming language from a snippet
...mple usage
c = Classifier.new
# Train from files
c.train(open("code.rb").read, :ruby)
c.train(open("code.py").read, :python)
c.train(open("code.cs").read, :csharp)
# Test it on another file
c.classify(open("code2.py").read) # => :python (hopefully)
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Could not find default endpoint element
... The reason this happens (as I understand it) is that config values are read from the main project in a solution, be that web, winforms, wpf etc. Say for example you have a class library project to access a database, the connectionString entry will need to be in the main project config rather tha...
UnicodeEncodeError: 'latin-1' codec can't encode character
...levant part of a linked item is provided in the answer. The link for extra reading is great, but please try to pop in a executive summary in your answer so to speak :)
– Fluffeh
Sep 27 '12 at 9:53
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How can I get a file's size in C? [duplicate]
...); // seek back to beginning of file
// proceed with allocating memory and reading the file
Linux/POSIX:
You can use stat (if you know the filename), or fstat (if you have the file descriptor).
Here is an example for stat:
#include <sys/stat.h>
struct stat st;
stat(filename, &st);
siz...