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Saving a Numpy array as an image
...An answer using PIL (just in case it's useful).
given a numpy array "A":
from PIL import Image
im = Image.fromarray(A)
im.save("your_file.jpeg")
you can replace "jpeg" with almost any format you want. More details about the formats here
...
jQuery disable a link
...e default behaviour of a hyperlink, which is to visit the specified href.
From the jQuery tutorial:
For click and most other events, you
can prevent the default behaviour -
here, following the link to jquery.com
- by calling event.preventDefault() in the event handler
If you want to pre...
Using OpenSSL what does “unable to write 'random state'” mean?
...cate to protect my server's admin section, and I keep getting this message from OpenSSL:
8 Answers
...
How do I convert an object to an array?
...ect_vars
$array = get_object_vars($object);
They work slightly different from each other. For example, get_object_vars will return an array with only publicly accessible properties unless it is called from within the scope of the object you're passing (ie in a member function of the object). (ar...
What is the bit size of long on 64-bit Windows?
...y was one such) and LP64 (for almost everything else). The acronynms come from 'int, long, pointers are 64-bit' and 'long, pointers are 64-bit'.
Type ILP64 LP64 LLP64
char 8 8 8
short 16 16 16
int 64 32 32
long ...
Get dimension from XML and set text size in runtime
...', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f14540293%2fget-dimension-from-xml-and-set-text-size-in-runtime%23new-answer', 'question_page');
}
);
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throwing an exception in objective-c/cocoa
...
Be sure to read the important caveat from harms (stackoverflow.com/questions/324284/324805#324805)
– e.James
Sep 22 '10 at 2:11
26
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Worst security hole you've seen? [closed]
...
From early days of online stores:
Getting a 90% discount by entering .1 in the quantity field of the shopping cart. The software properly calculated the total cost as .1 * cost, and the human packing the order simply glossed...
Adding two numbers concatenates them instead of calculating the sum
...hey are actually strings, not numbers. The easiest way to produce a number from a string is to prepend it with +:
var x = +y + +z;
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When does invoking a member function on a null instance result in undefined behavior?
...tly stated. (Notes are non-normative.)
However, one can try to deduced it from §3.10/2:
An lvalue refers to an object or function.
When dereferencing, the result is an lvalue. A null pointer does not refer to an object, therefore when we use the lvalue we have undefined behavior. The proble...