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How can I convert an RGB image into grayscale in Python?
...a luma value, but it means you can do it all in matplotlib.
Background:
http://matplotlib.sourceforge.net/api/colors_api.html
http://en.wikipedia.org/wiki/HSL_and_HSV
Alternatively, you could use PIL or the builtin colorsys.rgb_to_yiq() to convert to a colorspace with a true luma value. You co...
企业级负载平衡简介 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...而只是挂起，那么它仍然可以接受TCP连接，只是无法接收HTTP请求。
由于这种状态查询请求实际上是特定于服务实例的具体实现，因此很多负载平衡服务器都允许用户添加自定义脚本以执行特定于服务实例的查询。这些状态查询...
symfony 2 twig limit the length of the text and put three dots
How can I limit the length of the text, e.g., 50, and put three dots in the display?
13 Answers
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How can I create directory tree in C++/Linux?
I want an easy way to create multiple directories in C++/Linux.
17 Answers
17
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jquery-ui sortable | How to get it work on iPad/touchdevices?
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Found a solution (only tested with iPad until now!)!
http://touchpunch.furf.com/content.php?/sortable/default-functionality
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How to write multiple line property value using PropertiesConfiguration?
...hat just relies on backslash + end-of-line. I just found it documented in:
http://docs.oracle.com/javase/6/docs/api/java/util/Properties.html
primes = 2,\
3,\
5,\
7,\
11
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What's the difference between a proxy server and a reverse proxy server? [closed]
...Links to topics from the post:
Content Delivery Network
Lists of CDNs
http://www.mytestbox.com/miscellaneous/content-delivery-networks-cdn-list/
http://blog.streamingmedia.com/the_business_of_online_vi/2008/01/updated-list-of.html
Forward proxy software (server side)
PHP-Proxy
cgi-proxy
ph...
关于php的socket初探 - PHP - 清泛IT论坛，有思想、有深度
...event 扩展实现的，需要运行的话要先安装此扩展，参考：http://pecl.php.net/package/libevent。
epoll/kqueue 的例子最好是能在linux环境下运行，因为windows下的php不支持多epoll模型，也不支持多进程。
以上就是我对php的初探，3中io模型的...
How to correctly use “section” tag in HTML5?
...nts would be listed explicitly in the document's
outline.
Reference:
http://www.w3.org/TR/html5/sections.html#the-section-element
http://www.whatwg.org/specs/web-apps/current-work/multipage/sections.html#the-section-element
Also see:
http://html5doctor.com/the-section-element/
http://www.i...
VIM: Deleting from current position until a space
Often when developing I am confronted with a nested object that I'd like to delete from code in the middle of a line like this:
...