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Is there a way to detect if an image is blurry?
...ding off of Nike's answer. Its straightforward to implement the laplacian based method with opencv:
short GetSharpness(char* data, unsigned int width, unsigned int height)
{
// assumes that your image is already in planner yuv or 8 bit greyscale
IplImage* in = cvCreateImage(cvSize(width,he...
Android Studio installation on Windows 7 fails, no JDK found
...
+1 This MOSTLY worked for me. I am running 64 bit windows and JDK 1.7.0. I tried adding both JDK_HOME and JAVA_HOME with "c:\Program Files\Java\jdk1.7.0\". It still would not load. However, I capitalized the "C" and removed the trailing slash and it works now: "C:\Pr...
JavaScript % (modulo) gives a negative result for negative numbers
According to Google Calculator (-13) % 64 is 51 .
11 Answers
11
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System.BadImageFormatException: Could not load file or assembly (from installutil.exe)
...pting to load a 32 bit-specific (/platform:x86) DLL into a process that is 64 bit or vice versa (viz. load a 64 bit-specific (/platform:x64) DLL into a process that is 32 bit). If your platform is non-specific (/platform:AnyCpu), this won't arise (assuming no referenced dependencies are of the wrong...
Ternary operator is twice as slow as an if-else block?
...er this question, we'll examine the assembly code produced by the X86 and X64 JITs for each of these cases.
X86, if/then
32: foreach (int i in array)
0000007c 33 D2 xor edx,edx
0000007e 83 7E 04 00 cmp dword ptr [esi+4],0
00000082 7E 1C...
Convert pandas timezone-aware DateTimeIndex to naive timestamp, but in certain timezone
...2:00', '2013-05-18 13:00:00+02:00'],
dtype='datetime64[ns, Europe/Brussels]', freq='H')
using tz_localize(None) removes the timezone information resulting in naive local time:
In [6]: t.tz_localize(None)
Out[6]: DatetimeIndex(['2013-05-18 12:00:00', '2013-05-18 13:00:00'], ...
Compiling with cython and mingw produces gcc: error: unrecognized command line option '-mno-cygwin'
I'm trying to compile a python extension with cython in win 7 64-bit using mingw (64-bit).
I'm working with Python 2.6 (Active Python 2.6.6) and with the adequate distutils.cfg file (setting mingw as the compiler)
...
Convert RGB to RGBA over white
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FYI, posted final solution based on your answer in question
– Mark Kahn
Jul 12 '11 at 23:58
2
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ArrayList vs List in C#
...ou can store an only value of Type T (string or int or employee or object) based on the declaration. (Note or)
Boxing and Unboxing will not happen.
Type safe.
It is newer.
Example:
ArrayList arrayList = new ArrayList();
List<int> list = new List<int>();
arrayList.Add(1);
arrayList.Ad...
Is gettimeofday() guaranteed to be of microsecond resolution?
...eofday() is 10us. It can jump forward and backward and time, consequently, based on the processes running on your system. This effectively makes the answer to your question no.
You should look into clock_gettime(CLOCK_MONOTONIC) for timing intervals. It suffers from several less issues due to thing...