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How can I sharpen an image in OpenCV?
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163
One general procedure is laid out in the Wikipedia article on unsharp masking:
You use a Gauss...
What does addChildViewController actually do?
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I was wondering about this question too. I watched Session 102 of the WWDC 2011 videos and Mr. View Controller, Bruce D. Nilo, said this:
viewWillAppear:, viewDidAppear:, etc have nothing to do with addChildViewController:. All that addChildViewController: does is to say "This vi...
Getting “bytes.Buffer does not implement io.Writer” error message
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153
Pass a pointer to the buffer, instead of the buffer itself:
import "bufio"
import "bytes"
fu...
Positioning a div near bottom side of another div
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Tested and working on Firefox 3, Chrome 1, and IE 6, 7 and 8:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html><body>
<div style='background-color: yellow; width: 70%;
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Why would adding a method add an ambiguous call, if it wouldn't be involved in the ambiguity
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107
Is this a bug?
Yes.
Congratulations, you have found a bug in overload resolution. The b...
How to create materialized views in SQL Server?
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144
They're called indexed views in SQL Server - read these white papers for more background:
Cr...
Getting the client's timezone offset in JavaScript
...nd UTC and negative if it is ahead. For example, if your time zone is UTC+10 (Australian Eastern Standard Time), -600 will be returned. Daylight savings time prevents this value from being a constant even for a given locale
Mozilla Date Object reference
Note that not all timezones are offset by ...
Send string to stdin
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answered Jun 30 '11 at 21:30
jm666jm666
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Ruby, Difference between exec, system and %x() or Backticks
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417
system
The system method calls a system program. You have to provide the command as a string a...