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Java Singleton and Synchronization
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edited Apr 20 '17 at 13:48
mfb
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answered Jun 23 '12 at 1:01
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How can I quantify difference between two images?
...re.py one.jpg one-blurred.jpg
Manhattan norm: 92605183.67 / per pixel: 13.4210411116
Zero norm: 6900000 / per pixel: 1.0
P.S. Entire compare.py script.
Update: relevant techniques
As the question is about a video sequence, where frames are likely to be almost the same, and you look for somethin...
Why do we need Abstract factory design pattern?
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answered Feb 17 '10 at 11:49
Mark SeemannMark Seemann
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Cannot make a static reference to the non-static method
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143
Since getText() is non-static you cannot call it from a static method.
To understand why, you ...
How to test my servlet using JUnit
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Mike B.
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answered May 17 '11 at 21:27
aaronvargasaaron...
How can I get color-int from color resource?
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949
You can use:
getResources().getColor(R.color.idname);
Check here on how to define custom col...
Simulate delayed and dropped packets on Linux
...on value as well.
# tc qdisc change dev eth0 root netem delay 100ms 10ms 25%
This causes the added delay to be 100 ± 10 ms with the next random element depending 25% on the last one. This isn't true statistical correlation, but an approximation.
Delay distribution
Typically, the d...
write a shell script to ssh to a remote machine and execute commands
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142
There are multiple remote linux machines, and I need to write a shell script which will exec...
win7 安装项目管理工具redmine2.5.1 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
win7 安装项目管理工具redmine2.5.1〇、选择redmine最近项目中需要用到一个bug tracker工具，在摇摆不定之后，最终选了redmine，在此之前，我还没有搭建过类似的管理工具，现...〇、选择redmine
最近项目中需要用到一个bug tracker工具，...